Having trouble following the directions for dagster-slack. In step 2, we’re supposed to “create a bot user”. There is no such button to just create a bot user. According to the slack docs, I maybe need to add an Oauth Scope to the Bot Token Scope. However, there are a lot of different scopes that I could add. Which ones does dagster-slack need?

that depends which actions you're trying to use. if you're only using

chat_postMessage

, then you only need

chat:write

Can the bot do more than just post messages?

The slack resource is just wrapping the slack_sdk

WebClient

(https://github.com/dagster-io/dagster/blob/master/python_modules/libraries/dagster-slack/dagster_slack/resources.py), so you can do anything in the slack SDK that you provide your bot user permission for! https://slack.dev/python-slack-sdk/web/index.html

I just want it to send alerts to slack, which is all the example show, and I’ve never set up a slack bot before. The instructions are very confusing. I think I’ve got something, but now my sensor is failing with:

slack_sdk.errors.SlackApiError: The request to the Slack API failed. (url: <https://www.slack.com/api/chat.postMessage>)
The server responded with: {'ok': False, 'error': 'not_in_channel'}

Clearly I missed a step in setting up the bot that isn’t explained in the dagster slack docs.

Been a few months since I set up my slack bot, but I believe that error is because you need to add the slack app to each channel you want it to be able to write to (or add another oauth scope that lets it add itself to channels)

Strange. So couldn’t invite the bot via the

+

button in the channel like I can when I want to invite people. Instead, I had to

@dagsterbot

in the channel, which sent the invite.

There's a command to "Add apps to a channel", it'll show up if you type

/add

or

/invite

too

I'm a little late to this thread, but I agree that our instructions for Slack setup could be improved.

Created issue at: https://github.com/dagster-io/dagster/issues/9757