我的使用Slack的BotFramework机器人如何忽略除直接渠道以外的所有渠道上的消息？

Question

I know this seems like it's been asked before - but I understand that you can figure out that someone's talking on a Slack channel by inspecting activity.Conversation.IsGroup - I'm using this successfully.

This is fine as long as the channel has more than two members! But there's an annoying edge case where newly-created channels, say, or channels just containing two members, have to experience the bot trying to respond to all messages there, until at least 3 members are added to the channel.

Has anyone figured out a handy way to detect this? I inspected the Activity JSON for both a message to the app/bot user directly and a message to a channel, but there's no obvious way of being able to distinguish a channel message from a direct-to-bot-user message.

Answer 1

If I remember well, there is a difference in Slack in the naming between a channel and a direct messaging: this difference can be seen in the Conversation.Id field:

Examples:

• for a channel: il will look like Bxxxxxxxx:Tyyyyyyyy:Czzzzzzzz
• for a direct messaging between you and people A: Bxxxxxxxx:Tyyyyyyyy:Daaaaaaaa
• for a direct messaging with several people: Bxxxxxxxx:Tyyyyyyyy:Gbbbbbbbb

Where:

• Bxxxxxxxx is your bot Slack's ID
• Tyyyyyyyy is your Slack's workspace ID
• Czzzzzzzz is the current channel Slack's ID (visible in the url when using web version of Slack)

You will be able to detect your case by checking the conversation ID