I am trying to create a link to a public channel in a post message to slack programmatically.
Following the documentation, I am posting a slack message containing <#C...> with a valid public channel within my slack workspace. However, the display shows only Private channel info, instead of the actual channel.
Are there additional permissions or setup required?
Got it to work with using <#{normalized_channel_name}>
Related
I want to retrieve all channels in my workspace using Slack API but my private channels are not listed unless I add my bot to them using Slack desktop/mobile app
Is this even possible to accomplish? Since the scope for reading private channels states:
View basic information about private channels that your slack app has been added to
which implies I should add my bot to the channel before reading it.
Bot users behave similarly to regular Slack users in that they only have visibility into conversations they are members of. Unfortunately, there is no way to gather private channel data without the bot being in the channel.
I have set up a slack app to allow me to send notifications from my code to a private slack channel.
I have invited the bot to the channel, and when I run the app from the command line, all is good.
However, when I try and run it from a docker container, I get channel not found. If I try and use exactly the same code, and send a message to a bot in a public channel, no issues all is good.
Both bots have permissions, chat:write and chat:write.public
Why would this only be working on some machines and not others?
I know this probably doesn't have enough detail, but I'm not sure what is needed to help diagnose this.
More information:
Thanks to #Suyash Gaur I didn't know about the groups scope. I've now added groups:write and groups:history to the app, but am still getting the same error from the docker version of the app.
The membership of the channel I'm trying to write too shows
cwpr_notifications on Aug 3, 2021
Can post messages to specific channels in slack, send messages as #cwprnotifications, send messages to channels #cwprnotifications isn't a member of, manage private channels that cwpr_notifications has been added to and create new ones, and view messages and other content in private channels that cwpr_notifications has been added to.
I am using a bottoken and channel ID to send the message. Do I need something else for a private channel.
When I first used the bot from the command line run, I had to invite the app to the channel to get it to work, but surely I only need to do that once?
I've confirmed that the environment variables are getting passed in correctly.
With limited set of information provided, I can only say that:
If the public channel is accessible and private channel is not,
It seems like an issue of scopes.
For public channels, scopes start with channels:*
For private channels, scopes start with groups:*
Can you look into the app's configuration and confirm the permissions are configured correctly?
I have a bot with event scopes app_mention and messages.im. It also has OAuth scopes app_mentions.read, channels.history, chat.write, groups.history, and im.history.
If I # mention my bot in a public channel, a thread off of a public channel, or directly message my bot I get an event. But if I'm in a private message with someone else and # mention my bot, I don't get any events from the #mention.
What is the correct event scope to enable to get the event?
you can't unfortuantly. app_mention only works in conversations the bot would have access to. You would need each user to directly give you access to im history and monitor every message event for a mention of the bot itself (probably either some regex or similar to look for the <#bot_name>.
I know there was a link_names part of the json object being sent for message events but you'd still need to check the message body to make sure its your bot being mentioned and not another user
I created a public channel and changed it to private and invited my bot. Then with bot token I tried to access channel/group info using slack API https://api.slack.com/methods/groups.info but resposne is "channel_not_found" when I used https://api.slack.com/methods/groups.info
API I got "method_not_supported_for_channel_type"
Do you have any Idea how to get channel info when it changed from public to private.
Yes. The old style API methods (like channels.* and groups.*) do not work for those kind of channels.
You need to use the newer conversations.* methods like conversations.info instead.
I have no idea how to do it using EventsAPI from Slack.
So, our bot does this:
Creates public channel #test
Invites the bot to the channel using user token
From now on, we are using bot token to post messages on the channel
The problem happens when someone converts public channel to private. The ID of the channel changes and the bot gets error channel_not_found.
Do you have an idea how to track this change and update ID on our system automatically? Bot is still the member of the channel!
I found a way and it was also confirmed by Slack Help team.
Basically when channel is converted to private, you get these events:
channel_deleted with id of your public channel
member_joined_channel with id of new private channel and bot_id
When you get member_joined_channel, retrieve from Slack the name of new channel and if it matches your previous public channel then you know it is the same one but private now.
Slack does not allow to create channels with the same name so this is the indicator.
I just tested it with production app and it works! :)
I don't think that is currently possible.
Naturally, you would expect a specific Slack event for that case to fire, when a channel is converted, but there does not appear to be one. If you need this I would suggest to write a request they add an event for it.
One thing you can do is restricted who can create private channels in your Slack workplace to limit the risk of unintended use.
However, you can prevent this error from occurring by checking which public and private channels exist with conversations.list, and which channels you bot is a member with conversations.member.