Metadata API for PubNub Cocoa Objective-C SDK

This page describes the new Objects v2. To upgrade from Objects v1, refer to the migration guide.

Objects provides easy-to-use, serverless storage for user and channel data you need to build innovative, reliable, scalable applications. Use Objects to easily store metadata about your application users and channels, and their membership associations, without the need to stand up your own databases.

PubNub also triggers events when object data is set or removed from the database. Clients can receive these events in real time and update their front-end application accordingly.

User

Get Metadata for All Users

Description

Returns a paginated list of UUID Metadata objects, optionally including the custom data object for each.

Method(s)

To Get All UUID Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)allUUIDMetadataWithRequest:(PNFetchAllUUIDMetadataRequest *)request completion:(PNFetchAllUUIDMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchAllUUIDMetadataRequest	Yes	Fetch all UUID metadata request object with all information which should be used to fetch existing UUID metadata.
   block	PNFetchAllUUIDMetadataCompletionBlock	Yes	Fetch all UUID metadata request completion block.

PNFetchAllUUIDMetadataRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, Use asc or desc to specify sort direction
includeFields	PNUUIDFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNUUIDTotalCountField - include how many UUID has been associated with metadata. PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests. Default value (PNUUIDTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNFetchAllUUIDMetadataRequest *request = [PNFetchAllUUIDMetadataRequest new];
request.start = @"<next from previous request>";
// Add this request option, if returned metadata models should have value which has been set to
// 'custom' property.
request.includeFields = PNUUIDCustomField | PNUUIDTotalCountField;
request.limit = 40;

[self.client allUUIDMetadataWithRequest:request
                             completion:^(PNFetchAllUUIDMetadataResult *result, PNErrorStatus *status) {

    if (!status.isError) {
        /**
         * UUID metadata successfully fetched.
         * Result object has following information:
         *   result.data.metadata - list of fetched UUID metadata,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of created UUID metadata.
         */
    } else {
        /**
         * Handle UUID metadata fetch error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch all UUID metadata Object API is used:

@interface PNFetchAllUUIDMetadataData : PNServiceData

// List of UUID metadata objects created for current subscribe key.
@property (nonatomic, readonly, strong) NSArray<PNUUIDMetadata *> *metadata;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of objects created for current subscribe key.
 *
 * Value will be 0 in case if PNUUIDTotalCountField not added to 'includeFields'
 * of PNFetchAllUUIDMetadataRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchAllUUIDMetadataResult : PNResult

// Fetch all UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchAllUUIDMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Metadata for All Users (Builder Pattern)

Method(s)

1. objects().allUUIDMetadata().includeFields(PNUUIDFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(PNFetchAllUUIDMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   includeFields	PNUUIDFields	No	PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNFetchAllUUIDMetadataCompletionBlock	Yes	Associated metadata fetch completion handler block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().allUUIDMetadata()
    .start(@"<next from previous request>")
    .includeFields(PNUUIDCustomField)
    .includeCount(YES)
    .limit(40)
    .performWithCompletion(^(PNFetchAllUUIDMetadataResult *result, PNErrorStatus *status) {
        if (!status.isError) {
            /**
             * UUID metadata successfully fetched.
             * Result object has following information:
             *   result.data.metadata - list of fetched UUID metadata,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of created UUID metadata.
             */
        } else {
            /**
             * Handle UUID metadata fetch error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when fetch all UUID metadata Object API is used:

@interface PNFetchAllUUIDMetadataData : PNServiceData

// List of UUID metadata objects created for current subscribe key.
@property (nonatomic, readonly, strong) NSArray<PNUUIDMetadata *> *metadata;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of objects created for current subscribe key.
 *
 * Value will be 0 in case if PNUUIDTotalCountField not added to 'includeFields'
 * of PNFetchAllUUIDMetadataRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchAllUUIDMetadataResult : PNResult

// Fetch all UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchAllUUIDMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get User Metadata

Description

Returns metadata for the specified UUID, optionally including the custom data object for each.

Method(s)

To Get UUID Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)uuidMetadataWithRequest:(PNFetchUUIDMetadataRequest *)request completion:(PNFetchUUIDMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchUUIDMetadataRequest	Yes	Fetch UUID metadata request with all information which should be used to fetch existing UUID metadata.
   block	PNFetchUUIDMetadataCompletionBlock	Yes	Fetch UUID metadata request completion block.

PNFetchUUIDMetadataRequest

Parameter	Type	Required	Description
includeFields	PNUUIDFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests. Default value (PNUUIDCustomField) can be reset by setting 0.
uuid	NSString	No	Create and configure fetch UUID metadata request. uuid - Identifier for metadata should be fetched. Will be set to current PubNub configuration uuid if nil is set.

Basic Usage

PNFetchUUIDMetadataRequest *request = [PNFetchUUIDMetadataRequest requestWithUUID:@"uuid"];
// Add this request option, if returned metadata model should have value which has been set to
// 'custom' property.
request.includeFields = PNUUIDCustomField;

[self.client uuidMetadataWithRequest:request
                          completion:^(PNFetchUUIDMetadataResult *result, PNErrorStatus *status) {

    if (!status.isError) {
        /**
         * UUID metadata successfully fetched.
         * Fetched UUID metadata information available here: result.data.metadata
         */
    } else {
        /**
         * Handle UUID metadata fetch error. Check 'category' property to find out possible issue
         * because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch UUID metadata Object API is used:

@interface PNFetchUUIDMetadataData : PNServiceData

// Requested UUID metadata object.
@property (nonatomic, nullable, readonly, strong) PNUUIDMetadata *metadata;

@end

@interface PNFetchUUIDMetadataResult : PNResult

// Fetch UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchUUIDMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get User Metadata (Builder Pattern)

Method(s)

1. objects().uuidMetadata().uuid(NSString *).includeFields(PNUUIDFields).performWithCompletion(PNFetchUUIDMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier for which associated metadata should be fetched. Default: configured PubNub client uuid
   includeFields	PNUUIDMFields	No	PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests. Default: PNUUIDCustomField Default value can be reset by setting 0
   block	PNFetchUUIDMetadataCompletionBlock	Yes	Fetch UUID metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().uuidMetadata()
    .uuid(@"uuid")
    .includeFields(PNUUIDCustomField)
    .performWithCompletion(^(PNFetchUUIDMetadataResult *result, PNErrorStatus *status) {
      if (!status.isError) {
          /**
           * UUID metadata successfully fetched.
           * Fetched UUID metadata information available here: result.data.metadata
           */
      } else {
          /**
           * Handle UUID metadata fetch error. Check 'category' property to find out possible issue
           * because of which request did fail.
           *
           * Request can be resent using: [status retry]
           */
      }
    });

Response

Response objects which is returned by client when fetch UUID metadata Object API is used:

@interface PNFetchUUIDMetadataData : PNServiceData

// Requested UUID metadata object.
@property (nonatomic, nullable, readonly, strong) PNUUIDMetadata *metadata;

@end

@interface PNFetchUUIDMetadataResult : PNResult

// Fetch UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchUUIDMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Set User Metadata

Description

Set metadata for a UUID in the database, optionally including the custom data object for each.

Method(s)

To Set UUID Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)setUUIDMetadataWithRequest:(PNSetUUIDMetadataRequest *)request completion:(nullable PNSetUUIDMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNSetUUIDMetadataRequest	Yes	Set UUID metadata request with all information which should be associated with UUID.
   block	PNSetUUIDMetadataCompletionBlock	No	Set UUID metadata request completion block.

PNSetUUIDMetadataRequest

Parameter	Type	Required	Description
custom	NSDictionary	No	Additional / complex attributes which should be associated with metadata.
externalId	NSString	No	Identifier from external service (database, auth service).
profileUrl	NSString	No	URL at which profile available.
includeFields	PNUUIDFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests. Default value (PNUUIDCustomField) can be reset by setting 0.
email	NSString	No	Email address.
name	NSString	No	Name which should be stored in metadata associated with specified identifier.
uuid	NSString	No	Create and configure set UUID metadata request. uuid - Identifier with which \c metadata is linked. Will be set to current PubNub configuration uuid if nil is set.

Basic Usage

PNSetUUIDMetadataRequest *request = [PNSetUUIDMetadataRequest requestWithUUID:@"uuid"];
// With this option on, returned metadata model will have value which has been set to 'custom'
// property.
request.includeFields = PNUUIDCustomField;
request.custom = @{ @"age": @(39), @"status": @"Checking some stuff..." };
request.email = @"support@pubnub.com";
request.name = @"David";

[self.client setUUIDMetadataWithRequest:request completion:^(PNSetUUIDMetadataStatus *status) {
    if (!status.isError) {
        /**
         * UUID metadata successfully has been set.
         * UUID metadata information available here: status.data.metadata
         */
    } else {
        /**
         * Handle UUID metadata set error. Check 'category' property to find out possible issue
         * because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when set UUID metadata Object API is used:

@interface PNSetUUIDMetadataData : PNServiceData

// Updated UUID metadata object.
@property (nonatomic, nullable, readonly, strong) PNUUIDMetadata *metadata;

@end

@interface PNSetUUIDMetadataStatus : PNAcknowledgmentStatus

// Set UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNSetUUIDMetadataData *data;

@end

Set User Metadata (Builder Pattern)

Method(s)

1. objects().setUUIDMetadata().uuid(NSString *).name(NSString *).externalId(NSString *).profileUrl(NSString *).custom(NSDictionary *).email(NSString *).includeFields(PNUUIDFields).performWithCompletion(nullable PNSetUUIDMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier with which new metadata should be associated. Default: configured PubNub client uuid
   name	NSString	No	Name which should stored in metadata associated with specified UUID.
   externalId	NSString	No	External identifier (database, auth service) associated with specified UUID.
   profileUrl	NSString	No	External URL with information for specified UUID representation.
   custom	NSDictionary	No	Additional information which should be stored in metadata associated with specified UUID.
   email	NSString	No	Email address which should be stored in metadata associated with specified UUID.
   includeFields	PNUUIDFields	No	PNUUIDCustomField - include field with additional information from metadata which has been used during UUID metadata set requests. Default: PNUUIDCustomField Default value can be reset by setting 0.
   block	PNSetUUIDMetadataCompletionBlock	No	Set UUID metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().setUUIDMetadata()
    .uuid(@"uuid")
    .name(@"Serhii")
    .externalId(@"93FVfHUAf4RLu79J7Q3ejLVu")
    .profileUrl(@"https://pubnub.com")
    .custom(@{ @"age": @(36) })
    .email(@"support@pubnub.com")
    .includeFields(PNUUIDCustomField)
    .performWithCompletion(^(PNSetUUIDMetadataStatus *status) {
        if (!status.isError) {
            /**
             * UUID metadata successfully has been set.
             * UUID metadata information available here: status.data.metadata
             */
        } else {
            /**
             * Handle UUID metadata set error. Check 'category' property to find out possible issue
             * because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when set UUID metadata Object API is used:

@interface PNSetUUIDMetadataData : PNServiceData

// Updated UUID metadata object.
@property (nonatomic, nullable, readonly, strong) PNUUIDMetadata *metadata;

@end

@interface PNSetUUIDMetadataStatus : PNAcknowledgmentStatus

// Set UUID metadata request processed information.
@property (nonatomic, readonly, strong) PNSetUUIDMetadataData *data;

@end

Remove User Metadata

Description

Removes the metadata from a specified UUID.

Method(s)

To Remove UUID Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)removeUUIDMetadataWithRequest:(PNRemoveUUIDMetadataRequest *)request completion:(nullable PNRemoveUUIDMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNRemoveUUIDMetadataRequest	Yes	Remove UUID metadata request with information about existing metadata.
   block	PNRemoveUUIDMetadataCompletionBlock	No	Remove UUID metadata request completion block.

PNRemoveUUIDMetadataRequest

Parameter	Type	Required	Description
uuid	NSString	No	Create and configure delete user request. identifier - Create and configure remove UUID metadata request. Will be set to current PubNub configuration uuid if nil is set.

Basic Usage

PNRemoveUUIDMetadataRequest *request = [PNRemoveUUIDMetadataRequest requestWithUUID:@"uuid"];

[self.client removeUUIDMetadataWithRequest:request completion:^(PNAcknowledgmentStatus *status) {
    if (!status.isError) {
        // UUID metadata successfully removed.
    } else {
        /**
         * Handle UUID metadata remove error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when remove UUID metadata Object API is used:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNAcknowledgmentStatus : PNErrorStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Remove User Metadata (Builder Pattern)

Method(s)

1. objects().removeUUIDMetadata().uuid(NSString *).performWithCompletion(PNFetchUUIDMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier for which associated metadata should be removed. Default: configured PubNub client uuid
   block	PNRemoveUUIDMetadataCompletionBlock	No	Remove UUID metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().removeUUIDMetadata()
    .uuid(@"uuid")
    .performWithCompletion(^(PNAcknowledgmentStatus *status) {
        if (!status.isError) {
             // User successfully deleted.
        } else {
            /**
             * Handle user delete error. Check 'category' property to find out possible issue
             * because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when remove UUID metadata Object API is used:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNAcknowledgmentStatus : PNErrorStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Channel

Get Metadata for All Channels

Description

Returns a paginated list of Channel Metadata objects, optionally including the custom data object for each.

Method(s)

To Get All Channel Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)allChannelsMetadataWithRequest:(PNFetchAllChannelsMetadataRequest *)request completion:(PNFetchAllChannelsMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchAllChannelsMetadataRequest	Yes	Fetch all UUID metadata request object with all information which should be used to fetch existing UUID metadata.
   block	PNFetchAllChannelsMetadataCompletionBlock	Yes	Fetch all UUID metadata request completion block.

PNFetchAllChannelsMetadataRequest

Parameter	Type	Required	Description
includeFields	PNChannelFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelTotalCountField - include how many channels has been associated with metadata. PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests. Default value (PNChannelTotalCountField) can be reset by setting 0.
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNFetchAllChannelsMetadataRequest *request = [PNFetchAllChannelsMetadataRequest new];
request.start = @"<next from previous request>";
// Add this request option, if returned metadata models should have value which has been set to
// 'custom' property.
request.includeFields = PNUUIDCustomField | PNUUIDTotalCountField;
request.limit = 40;

[self.client allChannelsMetadataWithRequest:request
                                 completion:^(PNFetchAllChannelsMetadataResult *result, PNErrorStatus *status) {
    if (!status.isError) {
        /**
         * Channels metadata successfully fetched.
         * Result object has following information:
         *   result.data.metadata - list of fetched channels metadata,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of associated channel metadata.
    } else {
        /**
         * Handle channels metadata fetch error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch all UUID metadata Object API is used:

@interface PNFetchAllChannelsMetadataData : PNServiceData

// List of channels metadata objects created for current subscribe key.
@property (nonatomic, readonly, strong) NSArray<PNChannelMetadata *> *metadata;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of objects created for current subscribe key.
 *
 * Value will be 0 in case if PNChannelTotalCountField not added to 'includeFields'
 * of PNFetchAllChannelsMetadataRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchAllChannelsMetadataResult : PNResult

// Fetch all channels metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchAllChannelsMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Metadata for All Channels (Builder Pattern)

Method(s)

1. objects().allChannelsMetadata().includeFields(PNChannelFields).includeCount(BOOL).filter(NSString).sort(NSArray).limit(NSUInteger).start(NSString).end(NSString).performWithCompletion(PNFetchChannelMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   includeFields	PNChannelFields	No	PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNFetchAllChannelsMetadataCompletionBlock	Yes	Fetch all UUID metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().allChannelsMetadata()
    .start(@"<next from previous request>")
    .includeFields(PNChannelCustomField)
    .includeCount(YES)
    .limit(40)
    .performWithCompletion(^(PNFetchAllChannelsMetadataResult *result, PNErrorStatus *status) {
        if (!status.isError) {
            /**
             * Channels metadata successfully fetched.
             * Result object has following information:
             *   result.data.metadata - list of fetched channels metadata,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of associated channel metadata.
        } else {
            /**
             * Handle channels metadata fetch error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when fetch all UUID metadata Object API is used:

@interface PNFetchAllChannelsMetadataData : PNServiceData

// List of channels metadata objects created for current subscribe key.
@property (nonatomic, readonly, strong) NSArray<PNChannelMetadata *> *metadata;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of objects created for current subscribe key.
 *
 * Value will be 0 in case if PNChannelTotalCountField not added to 'includeFields'
 * of PNFetchAllChannelsMetadataRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchAllChannelsMetadataResult : PNResult

// Fetch all channels metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchAllChannelsMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Channel Metadata

Description

Returns metadata for the specified Channel, optionally including the custom data object for each.

Method(s)

To Get Channel Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)channelMetadataWithRequest:(PNFetchChannelMetadataRequest *)request completion:(PNFetchChannelMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchChannelMetadataRequest	Yes	Fetch channel metadata request with all information which should be used to fetch existing channel metadata.
   block	PNFetchChannelMetadataCompletionBlock	Yes	Fetch channel metadata request completion block.

PNFetchChannelMetadataRequest

Parameter	Type	Required	Description
includeFields	PNChannelFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests. Default value (PNChannelCustomField) can be reset by setting 0.
channel	NSString	No	Create and configure fetch channel metadata request. channel - Name of channel for which metadata should be fetched.

Basic Usage

PNFetchChannelMetadataRequest *request = [PNFetchChannelMetadataRequest requestWithChannel:@"channel"];
// Add this request option, if returned metadata model should have value which has been set to
// 'custom' property.
request.includeFields = PNChannelCustomField;

[self.client channelMetadataWithRequest:request
                             completion:^(PNFetchChannelsMetadataResult *result, PNErrorStatus *status) {

    if (!status.isError) {
        /**
         * Channel metadata successfully fetched.
         * Channel metadata information available here: result.data.metadata
         */
    } else {
        /**
         * Handle channel metadata fetch error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch channel metadata Object API is used:

@interface PNFetchChannelMetadataData : PNServiceData

// Requested channel metadata object.
@property (nonatomic, nullable, readonly, strong) PNChannelMetadata *metadata;

@end

@interface PNFetchChannelsMetadataResult : PNResult

// Fetch channel metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchChannelMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Channel Metadata (Builder Pattern)

Method(s)

1. objects().channelMetadata(NSString *).includeFields(PNChannelFields).performWithCompletion(PNFetchChannelMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel for which associated metadata should be fetched.
   includeFields	NSString	No	PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests. Default: PNChannelCustomField Default value can be reset by setting 0
   block	PNFetchChannelMetadataCompletionBlock	Yes	Fetch channel metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().channelMetadata(@"channel")
    .includeFields(PNChannelCustomField)
    .performWithCompletion(^(PNFetchChannelsMetadataResult *result, PNErrorStatus *status) {
        if (!status.isError) {
            /**
             * Channel metadata successfully fetched.
             * Channel metadata information available here: result.data.metadata
             */
        } else {
            /**
             * Handle channel metadata fetch error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when fetch channel metadata Object API is used:

@interface PNFetchChannelMetadataData : PNServiceData

// Requested channel metadata object.
@property (nonatomic, nullable, readonly, strong) PNChannelMetadata *metadata;

@end

@interface PNFetchChannelsMetadataResult : PNResult

// Fetch channel metadata request processed information.
@property (nonatomic, readonly, strong) PNFetchChannelMetadataData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Set Channel Metadata

Description

Set metadata for a Channel in the database, optionally including the custom data object for each.

Method(s)

To Set Channel Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)setChannelMetadataWithRequest:(PNSetChannelMetadataRequest *)request completion:(nullable PNSetChannelMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNSetChannelMetadataRequest	Yes	Set channel metadata request with all information which should be associated with channel.
   block	PNSetChannelMetadataCompletionBlock	No	Set channel metadata request completion block.

PNSetChannelMetadataRequest

Parameter	Type	Required	Description
custom	NSDictionary	No	Additional / complex attributes which should be stored in metadata associated with specified channel. Objects filtering language doesn’t support filtering by custom properties.
information	NSString	No	Description which should be stored in metadata associated with specified channel.
includeFields	PNChannelFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests. Default value (PNChannelCustomField) can be reset by setting 0.
name	NSString	No	Name which should be stored in metadata associated with specified channel.
channel	NSString	No	Create and configure set channel metadata request. channel - Name of channel for which metadata should be set.

Basic Usage

PNSetChannelMetadataRequest *request = [PNSetChannelMetadataRequest requestWithChannel:@"channel"];
// Add this request option, if returned metadata model should have value which has been set to
// 'custom' property.
request.includeFields = PNChannelCustomField;
request.custom = @{ @"responsibilities": @"Manage tests", @"status": @"offline" };
request.name = @"Updated channel name";

[self.client setChannelMetadataWithRequest:request completion:^(PNSetChannelMetadataStatus *status) {
    if (!status.isError) {
        /**
         * Channel metadata successfully has been set.
         * Channel metadata information available here: status.data.metadata
         */
    } else {
        /**
         * Handle channel metadata update error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when set channel metadata Object API is used:

@interface PNSetChannelMetadataData : PNServiceData

// Associated channel's metadata object.
@property (nonatomic, nullable, readonly, strong) PNChannelMetadata *metadata;

@end

@interface PNSetChannelMetadataStatus : PNAcknowledgmentStatus

// Set channel metadata request processed information.
@property (nonatomic, readonly, strong) PNSetChannelMetadataData *data;

@end

Set Channel Metadata (Builder Pattern)

Method(s)

```objectivec
objects().setChannelMetadata(NSString *).includeFields(PNChannelFields).channel(NSString).name(NSString).information(NSString).custom(NSDictionary).performWithCompletion(PNFetchChannelMetadataCompletionBlock)
```

Parameter	Type	Required	Description
channel	NSString	Yes	Name of channel with which new metadata should be associated.
name	NSString	No	Name which should stored in metadata associated with specified channel.
information	NSString	No	Description which should be stored in metadata associated with specified channel.
custom	NSDictionary	No	Additional information which should be stored in metadata associated with specified channel. Objects filtering language doesn’t support filtering by custom properties.
includeFields	PNChannelFields	No	PNChannelCustomField - include field with additional information from metadata which has been used during channel metadata set requests. Default: PNChannelCustomField Default value can be reset by setting 0.
block	PNSetChannelMetadataCompletionBlock	No	Set channel metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().setChannelMetadata(@"channel")
    .name(@"Admin")
    .information(@"Administrative channel")
    .custom(@{ @"responsibilities": @"Manage access to protected resources" })
    .includeFields(PNChannelCustomField)
    .performWithCompletion(^(PNSetChannelMetadataStatus *status) {
      if (!status.isError) {
          /**
           * Channel metadata successfully has been set.
           * Channel metadata information available here: status.data.metadata
           */
      } else {
          /**
           * Handle channel metadata update error. Check 'category' property to find out possible
           * issue because of which request did fail.
           *
           * Request can be resent using: [status retry]
           */
      }
    });

Response

Response objects which is returned by client when set channel metadata Object API is used:

@interface PNSetChannelMetadataData : PNServiceData

// Associated channel's metadata object.
@property (nonatomic, nullable, readonly, strong) PNChannelMetadata *metadata;

@end

@interface PNSetChannelMetadataStatus : PNAcknowledgmentStatus

// Set channel metadata request processed information.
@property (nonatomic, readonly, strong) PNSetChannelMetadataData *data;

@end

Remove Channel Metadata

Description

Removes the metadata from a specified channel.

Method(s)

To Remove Channel Metadata you can use the following method(s) in the Cocoa SDK:

1. - (void)removeChannelMetadataWithRequest:(PNRemoveChannelMetadataRequest *)request completion:(nullable PNRemoveChannelMetadataCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNRemoveChannelMetadataRequest	Yes	Remove channel metadata request with information about existing metadata.
   block	PNRemoveChannelMetadataCompletionBlock	No	Remove channel metadata request completion block.

PNRemoveChannelMetadataRequest

Parameter	Type	Required	Description
channel	NSString	No	Create and configure remove channel metadata request. channel - Name of channel for which metadata should be removed.

Basic Usage

PNRemoveChannelMetadataRequest *request = [PNRemoveChannelMetadataRequest requestWithChannel:@"channel"];

[self.client removeChannelMetadataWithRequest:request completion:^(PNAcknowledgmentStatus *status) {
    if (!status.isError) {
        // Channel metadata successfully removed.
    } else {
        /**
         * Handle channel metadata remove error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when remove channel metadata Object API is used:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNAcknowledgmentStatus : PNErrorStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Remove Channel Metadata (Builder Pattern)

Method(s)

1. objects().removeChannelMetadata(NSString *).performWithCompletion(nullable PNRemoveChannelMetadataCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel for which associated metadata should be removed.
   block	PNRemoveChannelMetadataCompletionBlock	No	Remove channel metadata request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().removeChannelMetadata(@"channel")
    .performWithCompletion(^(PNAcknowledgmentStatus *status) {
        if (!status.isError) {
            // Channel metadata successfully removed.
        } else {
            /**
             * Handle channel metadata remove error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when remove channel metadata Object API is used:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNAcknowledgmentStatus : PNErrorStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Channel Memberships

Get Channel Memberships

Description

The method returns a list of channel memberships for a user. This method doesn't return a user's subscriptions.

Method(s)

To Get Memberships you can use the following method(s) in the Cocoa SDK:

1. - (void)membershipsWithRequest:(PNFetchMembershipsRequest *)request completion:(PNFetchMembershipsCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchMembershipsRequest	Yes	Fetch UUID's memberships request with all information which should be used to fetch existing UUID's memberships.
   block	PNFetchMembershipsCompletionBlock	Yes	Fetch UUID's memberships request completion block.

PNFetchMembershipsRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	NSArray<NSString *>	No	Bitfield set to fields which should be returned with response. Supported fields: PNMembershipsTotalCountField - include how many memberships UUID has. PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership add requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests. Default value (PNMembershipsTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of members to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNFetchMembershipsRequest *request = [PNFetchMembershipsRequest requestWithUUID:@"uuid"];
request.start = @"<next from previous request>";
// Add this request option, if returned membership models should have value which has been set to
// 'custom' and 'channel' properties.
request.includeFields = PNMembershipCustomField | PNMembershipChannelField | PNMembershipsTotalCountField;
request.limit = 40;

[self.client membershipsWithRequest:request
                         completion:^(PNFetchMembershipsResult *result, PNErrorStatus *status) {

    if (!status.isError) {
        /**
         * UUID's memberships successfully fetched.
         * Result object has following information:
         *   result.data.memberships - list of UUID's memberships,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of UUID's memberships
         */
    } else {
        /**
         * Handle UUID's memberships fetch error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch memberships Object API is used:

@interface PNFetchMembershipsData : PNServiceData

// List of fetched memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of members created for current subscribe key.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchMembershipsResult : PNAcknowledgmentStatus

// Fetch memberships request processed information.
@property (nonatomic, readonly, strong) PNFetchMembershipsData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Channel Memberships (Builder Pattern)

Method(s)

1. objects().memberships().uuid(NSString *).includeFields(PNMembershipFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(PNFetchMembershipsCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Name of channel from which members should be fetched.
   includeFields	PNMembershipFields	No	PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership set requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNFetchMembershipsCompletionBlock	Yes	Fetch UUID's memberships request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().memberships()
    .uuid(@"uuid")
    .includeCount(YES)
    .limit(40)
    .includeFields(PNMembershipCustomField | PNMembershipChannelField)
    .performWithCompletion(^(PNFetchMembershipsResult *result, PNErrorStatus *status) {
        if (!status.isError) {
            /**
             * UUID's memberships successfully fetched.
             * Result object has following information:
             *   result.data.memberships - list of UUID's memberships,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of UUID's memberships
             */
        } else {
            /**
             * Handle UUID's memberships fetch error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when fetch memberships Object API is used:

@interface PNFetchMembershipsData : PNServiceData

// List of fetched memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of members created for current subscribe key.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchMembershipsResult : PNAcknowledgmentStatus

// Fetch memberships request processed information.
@property (nonatomic, readonly, strong) PNFetchMembershipsData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Set Channel Memberships

Description

Set channel memberships for a UUID.

Method(s)

To Set Memberships you can use the following method(s) in the Cocoa SDK:

1. - (void)setMembershipsWithRequest:(PNSetMembershipsRequest *)request completion:(nullable PNManageMembershipsCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNSetMembershipsRequest	Yes	Set UUID's memberships request with information which should be used to set channels membership.
   block	PNManageMembershipsCompletionBlock	No	Set UUID's memberships request completion block.

PNSetMembershipsRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	PNMembershipFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNMembershipsTotalCountField - include how many memberships UUID has. PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership add requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests. Default value (PNMembershipsTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

NSArray<NSDictionary *> *channels = @[
  @{ @"channel": @"channel1", @"custom": @{ @"role": @"moderator" } }
];

PNSetMembershipsRequest *request = [PNSetMembershipsRequest requestWithUUID:@"uuid"
                                                                   channels:channels];
// Add this request option, if returned membership models should have value which has been set to
// 'custom' and 'channel' properties.
request.includeFields = PNMembershipCustomField | PNMembershipChannelField | PNMembershipsTotalCountField;
request.limit = 40;

[self.client setMembershipsWithRequest:request completion:^(PNManageMembershipsStatus *status) {
    if (!status.isError) {
        /**
         * UUID's memberships successfully set.
         * Result object has following information:
         *   status.data.memberships - list of UUID's existing memberships,
         *   status.data.next - cursor bookmark for fetching the next page,
         *   status.data.prev - cursor bookmark for fetching the previous page,
         *   status.data.totalCount - total number of UUID's memberships.
         */
    } else {
        /**
         * Handle UUID's memberships set error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when set memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Set Channel Memberships (Builder Pattern)

Method(s)

1. objects().setMemberships().uuid(NSString *).channels(NSArray<NSDictionary *> *).includeFields(PNMembershipFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageMembershipsCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier for which memberships should be set. Default: configured PubNub client uuid
   channels	NSArray	No	List of channels for which metadata associated with each of them in context of UUID should be set. Each entry is dictionary with channel and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
   includeFields	PNMembershipFields	No	PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership set requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageMembershipsCompletionBlock	No	Set UUID's memberships request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

NSArray<NSDictionary *> *channels = @[
  @{ @"channel": @"channel1", @"custom": @{ @"role": @"moderator" } }
];

self.client.objects().setMemberships()
    .uuid(@"uuid")
    .channels(channels)
    .includeCount(YES)
    .limit(40)
    .includeFields(NMembershipCustomField | PNMembershipChannelField)
    .performWithCompletion(^(PNManageMembershipsStatus *status) {
        if (!status.isError) {
            /**
             * UUID's memberships successfully set.
             * Result object has following information:
             *   status.data.memberships - list of UUID's existing memberships,
             *   status.data.next - cursor bookmark for fetching the next page,
             *   status.data.prev - cursor bookmark for fetching the previous page,
             *   status.data.totalCount - total number of UUID's memberships.
             */
        } else {
            /**
             * Handle UUID's memberships set error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when set memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Remove Channel Memberships

Description

Remove channel memberships for a UUID.

Method(s)

To Remove Memberships you can use the following method(s) in the Cocoa SDK:

1. - (void)removeMembershipsWithRequest:(PNRemoveMembershipsRequest *)request completion:(nullable PNManageMembershipsCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNRemoveMembershipsRequest	Yes	Remove UUID's memberships request with information which should be used to remove channels membership.
   block	PNManageMembershipsCompletionBlock	No	Remove UUID's memberships request completion block.

PNRemoveMembershipsRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	PNMembershipFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNMembershipsTotalCountField - include how many memberships UUID has. PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership add requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests. Default value (PNMembershipsTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

NSArray<NSString *> *channels = @[@"channel1", @"channel2"];
PNRemoveMembershipsRequest *request = [PNRemoveMembershipsRequest requestWithUUID:@"uuid"
                                                                         channels:channels];
// Add this request option, if returned membership models should have value which has been set to
// 'custom' and 'channel' properties.
request.includeFields = PNMembershipCustomField | PNMembershipChannelField | PNMembershipsTotalCountField;
request.limit = 40;

[self.client removeMembershipsWithRequest:request
                               completion:^(PNManageMembershipsStatus *status) {

    if (!status.isError) {
        /**
         * UUID's memberships successfully removed.
         * Result object has following information:
         *   status.data.memberships - list of UUID's existing memberships,
         *   status.data.next - cursor bookmark for fetching the next page,
         *   status.data.prev - cursor bookmark for fetching the previous page,
         *   status.data.totalCount - total number of UUID's memberships.
         */
    } else {
        /**
         * Handle UUID's memberships remove error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when remove memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Remove Channel Memberships (Builder Pattern)

Method(s)

1. objects().removeMemberships().uuid(NSString *).channels(NSArray<NSString *> *).includeFields(PNMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageMembershipsCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier for which memberships should be removed. Default: configured PubNub client uuid
   channels	NSArray	No	List of channels from which UUID should be removed as member.
   includeFields	PNMembershipFields	No	PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership set requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests.
   includeCount	BOOL	No	Whether total count of members should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageMembershipsCompletionBlock	No	Remove UUID's memberships request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().removeMemberships()
    .uuid(@"uuid")
    .channels(@[@"channel1", @"channel2"])
    .includeCount(YES)
    .limit(40)
    .includeFields(PNMembershipCustomField | PNMembershipChannelField)
    .performWithCompletion(^(PNManageMembershipsStatus *status) {
        if (!status.isError) {
            /**
             * UUID's memberships successfully removed.
             * Result object has following information:
             *   status.data.memberships - list of UUID's existing memberships,
             *   status.data.next - cursor bookmark for fetching the next page,
             *   status.data.prev - cursor bookmark for fetching the previous page,
             *   status.data.totalCount - total number of UUID's memberships.
             */
        } else {
            /**
             * Handle UUID's memberships remove error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when remove memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Manage Channel Memberships

Description

The method Set and Remove channel memberships for a user.

Method(s)

To Manage Memberships you can use the following method(s) in the Cocoa SDK:

1. - (void)manageMembershipsWithRequest:(PNManageMembershipsRequest *)request completion:(nullable PNManageMembershipsCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNManageMembershipsRequest	Yes	Manage UUID's memberships request with information what modifications to UUID's memberships should be done (set / remove channels).
   block	PNManageMembershipsCompletionBlock	No	Manage UUID's memberships request completion block.

PNManageMembershipsRequest

Parameter	Type	Required	Description
setChannels	NSArray<NSDictionary *>	No	List of channels within which UUID should be set as member. Each entry is dictionary with channel and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
removeChannels	NSArray<NSString *>	No	List of channels from which UUID should be removed as member.
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
includeFields	PNMembershipFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNMembershipsTotalCountField - include how many memberships UUID has. PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership add requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests. Default value (PNMembershipsTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNManageMembershipsRequest *request = [PNManageMembershipsRequest requestWithUUID:@"uuid"];
request.setChannels = @[
    @{ @"channel": @"channel1", @"custom": @{ @"role": @"moderator" } }
];
request.removeChannels = @[@"channel3", @"channel4"];
// Add this request option, if returned membership models should have value which has been set to
// 'custom' and 'channel' properties.
request.includeFields = PNMembershipCustomField | PNMembershipChannelField | PNMembershipsTotalCountField;
request.limit = 40;

[self.client manageMembershipsWithRequest:request
                               completion:^(PNManageMembershipsStatus *status) {

    if (!status.isError) {
        /**
         * UUID's memberships successfully set.
         * Result object has following information:
         *   status.data.memberships - list of UUID's existing memberships,
         *   status.data.next - cursor bookmark for fetching the next page,
         *   status.data.prev - cursor bookmark for fetching the previous page,
         *   status.data.totalCount - total number of UUID's memberships.
         */
    } else {
        /**
         * Handle UUID's memberships set error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when manage memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Manage Channel Memberships (Builder Pattern)

Method(s)

1. objects().manageMemberships().uuid(NSString *).set(NSArray<NSDictionary *> *).remove(NSArray<NSString *> *).includeFields(PNMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageMembershipsCompletionBlock)
   

   Parameter	Type	Required	Description
   uuid	NSString	No	Identifier for which memberships should be set. Default: configured PubNub client uuid
   set	NSArray	No	List of channels for which metadata associated with each of them in context of UUID should be set. Each entry is dictionary with channel and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
   remove	NSArray	No	List of channels from which UUID should be removed as member.
   includeFields	PNMembershipFields	No	PNMembershipCustomField - include field with additional information from metadata which has been associated with UUID during membership set requests. PNMembershipChannelField - include channel's metadata into response (not only name). PNMembershipChannelCustomField - include channel's additional information which has been used during channel metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageMembershipsCompletionBlock	No	Manage UUID's memberships request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

NSArray<NSDictionary *> *setChannels = @[
    @{ @"channel": @"channel1", @"custom": @{ @"role": @"moderator" } }
];
NSArray<NSString *> *removeChannels = @[@"channel3", @"channel4"];

self.client.objects().manageMemberships()
    .uuid(@"uuid")
    .set(setChannels)
    .remove(removeChannels)
    .includeCount(YES)
    .limit(40)
    .includeFields(PNMembershipCustomField | PNMembershipChannelField)
    .performWithCompletion(^(PNManageMembershipsStatus *status) {
        if (!status.isError) {
            /**
             * UUID's memberships successfully set.
             * Result object has following information:
             *   status.data.memberships - list of UUID's existing memberships,
             *   status.data.next - cursor bookmark for fetching the next page,
             *   status.data.prev - cursor bookmark for fetching the previous page,
             *   status.data.totalCount - total number of UUID's memberships.
             */
        } else {
            /**
             * Handle UUID's memberships set error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when manage memberships Object API is used:

@interface PNManageMembershipsData : PNServiceData

// List of existing memberships.
@property (nonatomic, readonly, strong) NSArray<PNMembership *> *memberships;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNMembershipsTotalCountField not added to 'includeFields'
 * of PNSetMembershipsRequest / PNRemoveMembershipsRequest / PNManageMembershipsRequest or
 * PNFetchMembershipsRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageMembershipsStatus : PNAcknowledgmentStatus

// Memberships set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageMembershipsData *data;

@end

Channel Members

Get Channel Members

Description

The method returns a list of members in a channel. The list will include user metadata for members that have additional metadata stored in the database.

Method(s)

To Get Channel Members you can use the following method(s) in the Cocoa SDK:

1. - (void)channelMembersWithRequest:(PNFetchChannelMembersRequest *)request completion:(PNFetchChannelMembersCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNFetchChannelMembersRequest	Yes	Fetch channel's members request with all information which should be used to fetch existing channel's members.
   block	PNFetchChannelMembersCompletionBlock	Yes	Fetch channel's members request completion block.

PNFetchChannelMembersRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	PNChannelMemberFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelMembersTotalCountField - include how many members channel has. PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests. Default value (PNChannelMembersTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of members to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNFetchChannelMembersRequest *request = [PNFetchChannelMembersRequest requestWithChannel:@"channel"];
request.start = @"<next from previous request>";
// Add this request option, if returned member models should have value which has been set to
// 'custom' and 'uuid' properties.
request.includeFields = PNChannelMemberCustomField | PNChannelMemberUUIDField | PNChannelMembersTotalCountField;
request.limit = 40;

[self.client channelMembersWithRequest:request
                            completion:^(PNFetchChannelMembersResult *result, PNErrorStatus *status) {

    if (!status.isError) {
        /**
         * Channel's members successfully fetched.
         * Result object has following information:
         *   result.data.members - list of channel's members,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of channel's members.
         */
    } else {
        /**
         * Handle channel's members fetch error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when fetch members Object API is used:

@interface PNFetchChannelMembersData : PNServiceData

// List of fetched members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of members created for current subscribe key.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchChannelMembersResult : PNAcknowledgmentStatus

// Fetch members request processed information.
@property (nonatomic, readonly, strong) PNFetchChannelMembersData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Get Channel Members (Builder Pattern)

Method(s)

1. objects().channelMembers(NSString *).includeFields(PNChannelMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(PNFetchChannelMembersCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel from which members should be fetched.
   includeFields	PNChannelMemberFields	No	PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNFetchChannelMembersCompletionBlock	Yes	Fetch channel's members request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().channelMembers(@"channel")
    .includeCount(YES)
    .limit(40)
    .includeFields(PNChannelMemberCustomField | PNChannelMemberUUIDField)
    .performWithCompletion(^(PNFetchChannelMembersResult *result, PNErrorStatus *status) {
        if (!status.isError) {
            /**
             * Channel's members successfully fetched.
             * Result object has following information:
             *   result.data.members - list of channel's members,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of channel's members.
             */
        } else {
            /**
             * Handle channel's members fetch error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when fetch members Object API is used:

@interface PNFetchChannelMembersData : PNServiceData

// List of fetched members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of members created for current subscribe key.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNFetchChannelMembersResult : PNAcknowledgmentStatus

// Fetch members request processed information.
@property (nonatomic, readonly, strong) PNFetchChannelMembersData *data;

@end

Error response which is used in case of Objects API call failure:

@interface PNErrorData : PNServiceData

// Stringified error information.
@property (nonatomic, readonly, strong) NSString *information;

@end

@interface PNErrorStatus : PNStatus

// Whether status object represent error or not.
@property (nonatomic, readonly, assign, getter = isError) BOOL error;

// Additional information related to error status object.
@property (nonatomic, readonly, strong) PNErrorData *errorData;

@end

Set Channel Members

Description

This method sets members in a channel.

Method(s)

To Set Channel Members you can use the following method(s) in the Cocoa SDK:

1. - (void)setChannelMembersWithRequest:(PNSetChannelMembersRequest *)request completion:(nullable PNManageChannelMembersCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNSetChannelMembersRequest	Yes	Set channel's members list request with information which should be used to set UUID member.
   block	PNManageChannelMembersCompletionBlock	No	Set channel's members list request completion block.

PNSetMembersRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	PNChannelMemberFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelMembersTotalCountField - include how many members channel has. PNChannelMemberCustomField - field with additional information from metadata which has been associated with UUID during channel member set requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests. Default value (PNChannelMembersTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

NSArray>NSDictionary *> *uuids = @[
  @{ @"uuid": @"uuid2", @"custom": @{ @"role": @"moderator" } }
];

PNSetChannelMembersRequest *request = [PNSetChannelMembersRequest requestWithChannel:@"channel" uuids:uuids];
// Add this request option, if returned member models should have value which has been set to
// 'custom' and 'uuid' properties.
request.includeFields = PNChannelMemberCustomField | PNChannelMemberUUIDField | PNChannelMembersTotalCountField;
request.limit = 40;

[self.client setChannelMembersWithRequest:request completion:^(PNManageChannelMembersStatus *status) {
    if (!status.isError) {
        /**
         * Channel's members successfully set.
         * Result object has following information:
         *   result.data.members - list of existing channel's members,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of channel's members.
         */
    } else {
        /**
         * Handle channel's members set error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when set members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Set Channel Members (Builder Pattern)

Method(s)

1. objects().setChannelMembers(NSString *).uuids(NSArray<NSDictionary *> *).includeFields(PNChannelMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageChannelMembersCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel from which members should be set.
   uuids	NSArray	No	List of UUIDs for which metadata associated with each of them in context of channel should be set. Each entry is dictionary with UUID and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
   includeFields	PNChannelMemberFields	No	PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member set requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. Only objects whose properties satisfy the given expression are returned. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageChannelMembersCompletionBlock	No	Set channel's members list request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

NSArray<NSDictionary *> *uuids = @[
  @{ @"uuid": @"uuid2", @"custom": @{ @"role": @"moderator" } }
];

self.client.objects().setChannelMembers(@"channel")
    .uuids(uuids)
    .includeCount(YES)
    .limit(40)
    .includeFields(PNChannelMemberCustomField | PNChannelMemberUserField)
    .performWithCompletion(^(PNManageChannelMembersStatus *status) {
        if (!status.isError) {
            /**
             * Channel's members successfully set.
             * Result object has following information:
             *   result.data.members - list of existing channel's members,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of channel's members.
             */
        } else {
            /**
             * Handle channel's members set error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when set members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Remove Channel Members

Description

Remove members from a Channel.

Method(s)

To Remove Channel Members you can use the following method(s) in the Cocoa SDK:

1. - (void)removeChannelMembersWithRequest:(PNRemoveChannelMembersRequest *)request completion:(nullable PNManageChannelMembersCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNRemoveChannelMembersRequest	Yes	Remove channel's members request with information which should be used to remove UUID members.
   block	PNManageChannelMembersCompletionBlock	No	Remove channel's members request completion block.

PNRemoveChannelMembersRequest

Parameter	Type	Required	Description
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. Use asc or desc to specify sort direction.
includeFields	PNChannelMemberFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelMembersTotalCountField - include how many members channel has. PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests. Default value (PNChannelMembersTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

NSArray<NSString *> *uuids = @[@"uuid3", @"uuid4"];
PNRemoveChannelMembersRequest *request = [PNRemoveChannelMembersRequest requestWithChannel:@"channel"
                                                                                     uuids:uuids];
// Add this request option, if returned member models should have value which has been set to
// 'custom' and 'uuid' properties.
request.includeFields = PNChannelMemberCustomField | PNChannelMemberUUIDField | PNChannelMembersTotalCountField;
request.limit = 40;

[self.client removeChannelMembersWithRequest:request completion:^(PNManageChannelMembersStatus *status) {
    if (!status.isError) {
        /**
         * Channel's members successfully removed.
         * Result object has following information:
         *   result.data.members - list of channel's existing members,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of channel's members.
         */
    } else {
        /**
         * Handle channel's members remove error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when remove members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Remove Channel Members (Builder Pattern)

Method(s)

1. objects().removeChannelMembers(NSString *).uuids(NSArray<NSString *> *).includeFields(PNChannelMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageChannelMembersCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel from which members should be removed.
   uuids	NSArray	No	List of UUIDs which should be removed from channel's list.
   includeFields	PNChannelMemberFields	No	PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests.
   includeCount	BOOL	No	Whether total count of members should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageChannelMembersCompletionBlock	No	Remove channel's members request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

self.client.objects().removeChannelMembers(@"channel")
    .uuids(@[@"uuid3", @"uuid4"])
    .includeCount(YES)
    .limit(40)
    .includeFields(PNChannelMemberCustomField | PNChannelMemberUserField)
    .performWithCompletion(^(PNManageChannelMembersStatus *status) {
        if (!status.isError) {
            /**
             * Channel's members successfully removed.
             * Result object has following information:
             *   result.data.members - list of channel's existing members,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of channel's members.
             */
        } else {
            /**
             * Handle channel's members remove error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when remove members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Manage Channel Members

Description

The method Set and Remove channel memberships for a user.

Method(s)

To Manage Channel Members you can use the following method(s) in the Cocoa SDK:

1. - (void)manageChannelMembersWithRequest:(PNManageChannelMembersRequest *)request completion:(nullable PNManageChannelMembersCompletionBlock)block
   

   Parameter	Type	Required	Description
   request	PNManageChannelMembersRequest	Yes	Manage channel's members list request with information what modifications to channel's members list should be done (set / remove UUID).
   block	PNManageChannelMembersCompletionBlock	No	Manage channel's members list request completion block.

PNManageChannelMembersRequest

Parameter	Type	Required	Description
setMembers	NSArray<NSDictionary *>	No	List of UUIDs which should be added to channel's members list. Each entry is dictionary with uuid and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
removeMembers	NSArray<NSString *>	No	BList of UUIDs which should be removed from channel's list.
sort	NSArray<NSString *>	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
includeFields	PNChannelMemberFields	No	Bitfield set to fields which should be returned with response. Supported fields: PNChannelMembersTotalCountField - include how many members channel has. PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests. Default value (PNChannelMembersTotalCountField) can be reset by setting 0.
filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
start	NSString	No	Previously-returned cursor bookmark for fetching the next page.
end	NSString	No	Previously-returned cursor bookmark for fetching the previous page. Ignored if you also supply the start parameter.
limit	NSUInteger	No	Number of objects to return in response. Will be set to 100 (which is also maximum value) if not specified.

Basic Usage

PNManageChannelMembersRequest *request = [PNManageChannelMembersRequest requestWithChannel:@"channel"];
request.setMembers = @[
    @{ @"uuid": @"uuid2", @"custom": @{ @"role": @"moderator" } }
];
request.removeMembers = @[@"uuid3", @"uuid4"];
// Add this request option, if returned member models should have value which has been set to
// 'custom' and 'uuid' properties.
request.includeFields = PNChannelMemberCustomField | PNChannelMemberUUIDField | PNChannelMembersTotalCountField;
request.limit = 40;

[self.client manageChannelMembersWithRequest:request completion:^(PNManageChannelMembersStatus *status) {
    if (!status.isError) {
        /**
         * Channel's members successfully changed.
         * Result object has following information:
         *   result.data.members - list of existing channel's members,
         *   result.data.next - cursor bookmark for fetching the next page,
         *   result.data.prev - cursor bookmark for fetching the previous page,
         *   result.data.totalCount - total number of channel's members.
         */
    } else {
        /**
         * Handle channel's members manage error. Check 'category' property to find out possible
         * issue because of which request did fail.
         *
         * Request can be resent using: [status retry]
         */
    }
}];

Response

Response objects which is returned by client when manage members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Manage Channel Members (Builder Pattern)

Method(s)

1. objects().manageChannelMembers(NSString *).set(NSArray<NSDictionary *> *).remove(NSArray<NSString *> *).includeFields(PNChannelMemberFields).includeCount(BOOL).filter(NSString *).sort(NSArray<NSString *> *).limit(NSUInteger).start(NSString *).end(NSString *).performWithCompletion(nullable PNManageChannelMembersCompletionBlock)
   

   Parameter	Type	Required	Description
   channel	NSString	Yes	Name of channel from which members should be managed.
   set	NSArray	No	List of UUIDs which should be added to channel's members list. Each entry is dictionary with UUID and optional custom fields. custom should be dictionary with simple objects: NSString and NSNumber.
   remove	NSArray	No	List of UUIDs which should be removed from channel's list.
   includeFields	PNChannelMemberFields	No	PNChannelMemberCustomField - include field with additional information from metadata which has been associated with UUID during channel member add requests. PNChannelMemberUUIDField - include UUID's metadata into response (not only identifier). PNChannelMemberUUIDCustomField - include UUID's additional information which has been used during UUID metadata set requests.
   includeCount	BOOL	No	Whether total count of objects should be included in response or not. Default: YES
   filter	NSString	No	Expression to filter out results basing on specified criteria. For more details on the supported grammar, check this
   sort	NSArray	No	List of criteria (name of field) which should be used for sorting in ascending order. To change sorting order, append :asc (ascending used by default) or :desc (descending) to field name.
   limit	NSUInteger	No	Maximum number of objects per fetched page. Default: 100 (which is also maximum value)
   start	NSString	No	Cursor value to navigate to next fetched result page.
   end	NSString	No	Cursor value to navigate to previous fetched result page. Will be ignored if you also supply the start parameter.
   block	PNManageChannelMembersCompletionBlock	No	Set channel's members list request completion block.

Note

This method uses the builder pattern, you can remove the arguments which are optional.

Basic Usage

NSArray<NSDictionary *> *setMembers = @[
    @{ @"uuid": @"uuid2", @"custom": @{ @"role": @"moderator" } }
];
NSArray<NSDictionary *> *removeMembers = @[@"uuid3", @"uuid4"];

self.client.objects().manageChannelMembers(@"channel")
    .set(setMembers)
    .remove(removeMembers)
    .includeCount(YES)
    .limit(40)
    .includeFields(PNChannelMemberCustomField | PNChannelMemberUUIDField)
    .performWithCompletion(^(PNManageChannelMembersStatus *status) {
        if (!status.isError) {
            /**
             * Channel's members successfully changed.
             * Result object has following information:
             *   result.data.members - list of existing channel's members,
             *   result.data.next - cursor bookmark for fetching the next page,
             *   result.data.prev - cursor bookmark for fetching the previous page,
             *   result.data.totalCount - total number of channel's members.
             */
        } else {
            /**
             * Handle channel's members manage error. Check 'category' property to find out possible
             * issue because of which request did fail.
             *
             * Request can be resent using: [status retry]
             */
        }
    });

Response

Response objects which is returned by client when manage members Object API is used:

@interface PNManageChannelMembersData : PNServiceData

// List of existing members.
@property (nonatomic, readonly, strong) NSArray<PNChannelMember *> *members;

// Cursor bookmark for fetching the next page.
@property (nonatomic, nullable, readonly, strong) NSString *next;

// Cursor bookmark for fetching the previous page.
@property (nonatomic, nullable, readonly, strong) NSString *prev;

/**
 * Total number of existing objects.
 *
 * Value will be 0 in case if PNChannelMembersTotalCountField not added to 'includeFields'
 * of PNSetChannelMembersRequest / PNRemoveChannelMembersRequest /
 * PNManageChannelMembersRequest or PNFetchChannelMembersRequest.
 */
@property (nonatomic, readonly, assign) NSUInteger totalCount;

@end

@interface PNManageChannelMembersStatus : PNAcknowledgmentStatus

// Members set / remove / manage request processed information.
@property (nonatomic, readonly, strong) PNManageChannelMembersData *data;

@end

Objects Filtering Language Definition

The filtering language for Objects is similar to the stream filtering language

Note the following:

• Date/time properties, such as updated, must be compared to valid date/time strings formatted according to ISO 8601.

• The LIKE operator supports wildcards denoted by the * character. A wildcard matches any sequence of arbitrary Unicode characters, including the empty sequence. The literal asterisk is matched when escaped using the backslash (\) character.

• Values used with LIKE must be properly encoded just like any other string value. Thus, in order to escape an asterisk, the raw value must contain \\*.

• The entire expression must be properly URL-encoded when used in the query string.

Custom property filtering

You can't filter by custom properties.

<expression>           ::= <and_expression> ( "||" <and_expression> )*
<and_expression>       ::= <binary_condition> ( "&&" <binary_condition> )*
<binary_condition>     ::= "!" <binary_condition> | "(" <expression> ")" | <relational_condition>
<relational_condition> ::= <property_path> <relational_operator> <value>
<property_path>        ::= <property_name> ( "." <property_name> )*
<property_name>        ::= <identifier> | "[" <string> "]"
<value>                ::= <string> | <number> | "true" | "false" | "null"

Tokens

<identifier>           ::=  <letter> | "$" | "_" ( <letter> | "$" | "_" | <digit> )*
<relational_operator>  ::= "==" | "!=" | "<=" | ">=" | "<" | ">" | "LIKE"
<string>               ::= <double_quote> ( "\" <double_quote> | "\" <special_char>
                            | "\" "u" <hex_digit> <hex_digit> <hex_digit> <hex_digit>
                            | <unicode_char> - <double_quote> - "\" )* <double_quote>
                            | "'" ( "\" "'" | "\" <special_char>
                            | "\" "u" <hex_digit> <hex_digit> <hex_digit> <hex_digit>
                            | <unicode_char> - "'" - "\" )* "'"
<number>               ::= ( "+" | "-" )? ( <digit> )* ( "." )? <digit> ( <digit> )*
                            ( "e" | "E" ( "+" | "-" )? <digit> ( <digit> )* )?
<letter>               ::= Unicode Letter (category; any kind of letter from any language)
<digit>                ::= "0" .. "9"
<hex_digit>            ::= <digit> | "A" .. "F"
<double_quote>         ::= the " character
<unicode_char>         ::= any character in the Unicode range from U+0020 to U+10FFFF inclusive
<special_char>         ::= "\" | "/" | "b" | "f" | "n" | "r" | "t"

Sample object filtering operations

The following date/time comparison returns results that were modified on or after August 31st, 2019 (UTC):

updated >= "2019-08-31T00:00:00Z"

The following wildcard expression returns results whose name starts with the letter X:

name LIKE 'X*'

The following escaped wildcard expression returns results whose name contains an asterisk:

name LIKE '*\\**'