Python-asyncio Channel Groups API Reference for Realtime Apps

Python version support

Python SDK versions 5.0.0 and higher no longer support Python v2.7 and the Twisted and Tornado frameworks. If you require support for any of these, use SDK version 4.8.1.

Note that PubNub will stop supporting versions of Python lower than 3.7 by the end of 2021.

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-on Requires 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 Python-asyncio SDK:

Note

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

1. pubnub.add_channel_to_channel_group().channels(String|List|Tuple).channel_group(String)
   

   Parameter	Type	Required	Description
   channels	String | List | Tuple	Yes	The channel to add to the channel_group.
   channel_group	String	Yes	The channel_group to add the channels to.

Basic Usage

Adding Channels :

envelope = await pubnub.add_channel_to_channel_group().\
    channels(["ch1", "ch2"]).\
    channel_group("cg1").\
    future()

Listing Channels

Requires Stream Controller add-on Requires 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 lists all the channels of the channel group.

Method(s)

Listing Channels is accomplished by using the following method(s) in the Python-asyncio SDK:

1. pubnub.list_channels_in_channel_group().channel_group(String)
   

   Parameter	Type	Required	Description
   channel_group	String	Yes	The channel group to fetch channels.

Basic Usage

Listing Channels:

envelope = pubnub.list_channels_in_channel_group().\
    channel_group("cg1").future()

Removing Channels

Requires Stream Controller add-on Requires 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 removes the channels from the channel group.

Method(s)

Removing Channels is accomplished by using the following method(s) in the Python-asyncio SDK:

1. pubnub.remove_channel_from_channel_group().channels(String|List|Tuple).channel_group(String)
   

   Parameter	Type	Required	Description
   channels	String | List | Tuple	Yes	The channels to remove from the channel group.
   channel_group	String	Yes	Specifies channel_group to remove the channels from.

Basic Usage

Removing channels:

envelope = await pubnub.remove_channel_from_channel_group().\
    channels(["son", "daughter"]).\
    channel_group("channel_group").\
    future()

Deleting Channel Group

Requires Stream Controller add-on Requires 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 removes the channel group.

Method(s)

Deleting Channel Group is accomplished by using the following method(s) in the Python-asyncio SDK:

1. pubnub.remove_channel_group().channel_group(String)
   

   Parameter	Type	Required	Description
   channel_group	String	Yes	The channel group to remove.

Basic Usage

Deleting Channel Group:

envelope = await pubnub.remove_channel_group().\
    channel_group("cg1").future()