C# V4 Channel Groups API Reference for Realtime Apps

Channel Groups allows PubNub developers to bundle thousands of channels into a group that can be identified by name. These Channel Groups can then be subscribed to, receiving data from the many backend-channels the channel group contains.

Learn more about our Channel Groups here.

Adding Channels

Requires Stream Controller add-onRequires that the Stream Controller add-on is enabled for your key. See this page on enabling add-on features on your keys:
https://support.pubnub.com/hc/en-us/articles/360051974791-How-do-I-enable-add-on-features-for-my-keys-

Description

This function adds a channel to a channel group.

Method(s)

Adding Channels is accomplished by using the following method(s) in the C# V4 SDK:

Note

200 channels can be added to the channel group per API call.

pubnub.AddChannelsToChannelGroup().ChannelGroup(string).Channels(Array).QueryParam(Dictionary<string,object>)

Parameter	Type	Required	Description
`ChannelGroup`	string	Yes	The `ChannelGroup` to add the channels to.
`Channels`	Array	Yes	The `Channels` to add to the channel group.
`QueryParam`	Dictionary<string, object>	Optional	Dictionary `object` to pass name/value pairs as query `string` params with PubNub URL request for debug purpose.
`Async`	PNCallback	Deprecated	`PNCallback` of type `PNChannelGroupsAddChannelResult`.
`Execute`	PNCallback	Yes	`PNCallback` of type `PNChannelGroupsAddChannelResult`.
`ExecuteAsync`	None	Optional	Returns `PNResult<PNChannelGroupsAddChannelResult>`.

Basic Usage

Adding Channels :

PNResult<PNChannelGroupsAddChannelResult> cgAddChResponse = await pubnub.AddChannelsToChannelGroup()
    .ChannelGroup("cg1")
    .Channels(new string[] {
        "ch1",
        "ch2",
        "ch3"
    })
    .ExecuteAsync();

Returns

The AddChannelsToChannelGroup() operation returns a PNResult<PNChannelGroupsAddChannelResult> which contains the following properties:

Property Name	Type	Description
`Result`	PNChannelGroupsAddChannelResult	Returns a `PNChannelGroupsAddChannelResult` object.
`Status`	PNStatus	Returns a `PNStatus` object.

PNChannelGroupsAddChannelResult contains the following properties:

Property Name	Type	Description
`PNChannelGroupsAddChannelResult`	Object	Returns empty object.
`PNStatus`	Object	Returns status of request if error occurred or not.

Listing Channels

Description

This function lists all the channels of the channel group.

Method(s)

Listing Channels is accomplished by using the following method(s) in the C# V4 SDK:

pubnub.ListChannelsForChannelGroup().ChannelGroup(string).QueryParam(Dictionary<string,object>)

Parameter	Type	Required	Description
`ChannelGroup`	string	Yes	`Channel group` to fetch the channels.
`QueryParam`	Dictionary<string, object>	Optional	Dictionary `object` to pass name/value pairs as query `string` params with PubNub URL request for debug purpose.
`Async`	PNCallback	Deprecated	`PNCallback` of type `PNChannelGroupsAllChannelsResult`.
`Execute`	PNCallback	Yes	`PNCallback` of type `PNChannelGroupsAllChannelsResult`.
`ExecuteAsync`	None	Optional	Returns `PNResult<PNChannelGroupsAllChannelsResult>`.

Basic Usage

Listing Channels:

PNResult<PNChannelGroupsAllChannelsResult> cgListChResponse = await pubnub.ListChannelsForChannelGroup()
    .ChannelGroup("cg1")
    .ExecuteAsync();

Returns

The ListChannelsForChannelGroup() operation returns a PNChannelGroupsAllChannelsResult which contains the following properties:

Property Name	Type	Description
`Result`	PNChannelGroupsAllChannelsResult	Returns a `PNChannelGroupsAllChannelsResult` object.
`Status`	PNStatus	Returns a `PNStatus` object.

PNChannelGroupsAllChannelsResult contains the following property:

Property Name	Type	Description
`Channels`	List	List of `channels` of a `channel group`.

Removing Channels

Description

This function removes the channels from the channel group.

Method(s)

Removing Channels is accomplished by using the following method(s) in the C# V4 SDK:

pubnub.RemoveChannelsFromChannelGroup().ChannelGroup(string).Channels(Array).QueryParam(Dictionary<string,object>)

Parameter	Type	Required	Description
`ChannelGroup`	string	Yes	Specifies `ChannelGroup` to remove the channels from.
`Channels`	Array	Yes	The `Channels` to remove from the channel group.
`QueryParam`	Dictionary<string, object>	Optional	Dictionary `object` to pass name/value pairs as query `string` params with PubNub URL request for debug purpose.
`Async`	PNCallback	Deprecated	`PNCallback` of type `PNChannelGroupsRemoveChannelResult`.
`Execute`	PNCallback	Yes	`PNCallback` of type `PNChannelGroupsRemoveChannelResult`.
`ExecuteAsync`	None	Optional	Returns `PNResult<PNChannelGroupsRemoveChannelResult>`.

Basic Usage

Removing channels:

PNResult<PNChannelGroupsRemoveChannelResult> rmChFromCgResponse = await pubnub.RemoveChannelsFromChannelGroup()
    .ChannelGroup("family")
    .Channels(new string[] {
        "son"
    })
    .ExecuteAsync();

Returns

The RemoveChannelsFromChannelGroup() operation returns a PNChannelGroupsAddChannelResult which contains the following properties:

Property Name	Type	Description
`Result`	PNChannelGroupsRemoveChannelResult	Returns a `PNChannelGroupsRemoveChannelResult` object.
`Status`	PNStatus	Returns a `PNStatus` object.

PNChannelGroupsRemoveChannelResult contains the following property:

Property Name	Type	Description
`PNChannelGroupsRemoveChannelResult`	Object	Returns empty object.

Deleting Channel Group

Description

This function removes the channel group.

Method(s)

Deleting Channel Group is accomplished by using the following method(s) in the C# V4 SDK:

pubnub.DeleteChannelGroup().ChannelGroup(string).QueryParam(Dictionary<string,object>)

Parameter	Type	Required	Description
`ChannelGroup`	string	Yes	Specifies `ChannelGroup` to remove.
`QueryParam`	Dictionary<string, object>	Optional	Dictionary `object` to pass name/value pairs as query `string` params with PubNub URL request for debug purpose.
`Async`	PNCallback	Deprecated	`PNCallback` of type `PNChannelGroupsDeleteGroupResult`.
`Execute`	PNCallback	Yes	`PNCallback` of type `PNChannelGroupsDeleteGroupResult`.
`ExecuteAsync`	None	Optional	Returns `PNResult<PNChannelGroupsAllChannelsResult>`.

Basic Usage

Deleting Channel Group:

PNResult<PNChannelGroupsDeleteGroupResult> delCgResponse = await pubnub.DeleteChannelGroup()
    .ChannelGroup("family")
    .ExecuteAsync();

Response

{
    "status" : 200,
    "message" : "OK",
    "service" : "channel-registry",
    "error" : False
}