Channel Groups API for PubNub Go SDK

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

Channel group operations

You can't publish to a channel group. You can only subscribe to it. To publish within the channel group, you need to publish to each channel individually.

Add Channels

Requires Stream Controller add-on

This method requires that the Stream Controller add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.

This function adds a channel to a channel group.

Method(s)

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

Maximum number of channels

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

pn.AddChannelToChannelGroup().
    Channels([]string).
    ChannelGroup(string).
    QueryParam(queryParam).
    Execute()

Parameter	Type	Required	Description
Channels	[]string	Yes	channels to add to the channel group
ChannelGroup	string	Yes	The channel group to add the channels to.
QueryParam	map[string]string	Optional	QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.

Basic Usage

Add Channels

pn.AddChannelToChannelGroup().
    Channels([]string{"ch1", "ch2"}).
    ChannelGroup("cg").
    Execute()

Response

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

List Channels

Requires Stream Controller add-on

This method requires that the Stream Controller add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.

This function lists all the channels of the channel group.

Method(s)

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

pn.ListChannelsInChannelGroup().
    ChannelGroup(string).
    QueryParam(queryParam).
    Execute()

Parameter	Type	Required	Description
ChannelGroup	string	Yes	The channel group to fetch channels.
QueryParam	map[string]string	Optional	QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.

Basic Usage

List Channels

pn.ListChannelsInChannelGroup().
    ChannelGroup("cg").
    Execute()

Response

Method	Type	Description
Channels	[]string	Yes
Group	string	Yes

Remove Channels

Requires Stream Controller add-on

This method requires that the Stream Controller add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.

This function removes the channels from the channel group.

Method(s)

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

pn.RemoveChannelFromChannelGroup().
    ChannelGroup(string).
    Channels([]string).
    QueryParam(queryParam).
    Execute()

Parameter	Type	Required	Description
ChannelGroup	string	Yes	The channel group to remove the channels from.
Channels	[]string	Yes	channels remove from the channel group.
QueryParam	map[string]string	Optional	QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.

Basic Usage

Remove channels

pn.RemoveChannelFromChannelGroup().
    ChannelGroup("cg").
    Channels([]string{"ch1", "ch2"}).
    Execute()

Response

{
    Error:<nil>
    Category:Unknown
    Operation:Remove Channel From Channel Group
    StatusCode:200
    TLSEnabled:true
    UUID:d9713e5a-6bcb-439a-942e-5ba064f2e5dd
    AuthKey:
    Origin:ps.pndsn.com
    OriginalResponse: {
        "status": 200,
        "message": "OK",
        "service": "channel-registry",
        "error": false
    }

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Delete Channel Group

Requires Stream Controller add-on

This method requires that the Stream Controller add-on is enabled for your key in the Admin Portal. Read the support page on enabling add-on features on your keys.

This function removes the channel group.

Method(s)

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

pn.DeleteChannelGroup().
    ChannelGroup(string).
    QueryParam(queryParam).
    Execute()

Parameter	Type	Required	Description
ChannelGroup	string	Yes	The channel group to remove
QueryParam	map[string]string	Optional	QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.

Basic Usage

Delete Channel Group

pn.DeleteChannelGroup().
    ChannelGroup("remove-cg").
    Execute()

Response

{
    Error:<nil>
    Category:Unknown
    Operation:Remove Channel Group
    StatusCode:200
    TLSEnabled:true
    UUID:650089a0-922c-4de6-b422-7a38a964bf45
    AuthKey:
    Origin:ps.pndsn.com
    OriginalResponse: {
        "status": 200,
        "message": "OK",
        "service": "channel-registry",
        "error": false
    }

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