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ChannelSubscribers[channel]

gives a list of users currently subscribed to the specified channel.

ChannelSubscribers[{channel1,channel2,…}]

gives a list of subscribed users for each of the channels channeli.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Applications  
See Also
Related Guides
History
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ChannelSubscribers

ChannelSubscribers[channel]

gives a list of users currently subscribed to the specified channel.

ChannelSubscribers[{channel1,channel2,…}]

gives a list of subscribed users for each of the channels channeli.

Details and Options

  • In ChannelSubscribers[channel], channel can be specified as a channel object or in any of the forms used inside ChannelObject.
  • You must have execute permission on a channel to receive a list of subscribers.

Examples

open all close all

Basic Examples  (1)

Create a channel, subscribe to it, and get a subscriber list:

Wolfram Language code: channel = CreateChannel["x"]
Wolfram Language code: listener = ChannelListen[channel]
Wolfram Language code: ChannelSubscribers[channel]

Unsubscribe:

Wolfram Language code: RemoveChannelListener[listener]

The channel no longer has subscribers:

Wolfram Language code: ChannelSubscribers[channel]

Delete the channel:

Wolfram Language code: DeleteChannel[channel];

Scope  (2)

Start listening on a channel and get the subscriber list by channel name:

Wolfram Language code: CreateChannel["one"]; listener = ChannelListen["one"]
Wolfram Language code: ChannelSubscribers["one"]

Unsubscribe:

Wolfram Language code: RemoveChannelListener[listener]

Subscriber lists for two channels:

Wolfram Language code: CreateChannel["two"]; listeners = ChannelListen /@ {"one", "two"}
Wolfram Language code: ChannelSubscribers[{"one", "two"}]

Unsubscribe:

Wolfram Language code: RemoveChannelListener[listeners]

Delete the channels:

Wolfram Language code: DeleteChannel /@ {"one", "two"};

Get subscribers by ChannelObject:

Wolfram Language code: CreateChannel["x"]; channel = ChannelObject["x"]
Wolfram Language code: listener = ChannelListen[channel]
Wolfram Language code: ChannelSubscribers[channel]

Unsubscribe:

Wolfram Language code: RemoveChannelListener[listener]

Delete the channel:

Wolfram Language code: DeleteChannel[channel];

Applications  (2)

Create a few channels and start listening on them:

Wolfram Language code: listeners = ChannelListen /@ {CreateChannel[], CreateChannel["1"]}

List the users currently listening on each of the channels that you own:

Wolfram Language code: ChannelSubscribers[FindChannels[All]]

Associate channels with channel users:

Wolfram Language code: AssociationMap[ChannelSubscribers, FindChannels[All]]

Delete the new channels:

Wolfram Language code: DeleteChannel[#["ChannelObject"]& /@ listeners];

Start listening on some channels and find who is listening with you:

Wolfram Language code: CreateChannel /@ {"foo", "bar"}; listeners = {ChannelListen["foo"], ChannelListen["bar"]}
Wolfram Language code: ChannelSubscribers[#["ChannelObject"]]& /@ listeners

Delete the channels, which removes the listeners:

Wolfram Language code: DeleteChannel[{"foo", "bar"}];
Wolfram Research (2016), ChannelSubscribers, Wolfram Language function, https://reference.wolfram.com/language/ref/ChannelSubscribers.html.

Text

Wolfram Research (2016), ChannelSubscribers, Wolfram Language function, https://reference.wolfram.com/language/ref/ChannelSubscribers.html.

CMS

Wolfram Language. 2016. "ChannelSubscribers." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ChannelSubscribers.html.

APA

Wolfram Language. (2016). ChannelSubscribers. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ChannelSubscribers.html

BibTeX

@misc{reference.wolfram_2026_channelsubscribers, author="Wolfram Research", title="{ChannelSubscribers}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/ChannelSubscribers.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_channelsubscribers, organization={Wolfram Research}, title={ChannelSubscribers}, year={2016}, url={https://reference.wolfram.com/language/ref/ChannelSubscribers.html}, note=[Accessed: 13-June-2026]}