问题
Private messages or Direct messages can be found with methods such as im.history and converstation.history.
How to find thread message? I want to find thread messages and delete them.
回答1:
Finding thread messages
You need to use the conversations.history method to retrieve the parent message of a thread.
And then the conversations.replies method to retrieve the thread including all thread messages for a parent message.
You can detect a parent message by looking on the ts and thread_ts properties:
When a message has a thread_ts value and it matches the same message's ts, the message is a thread parent.
For more information check out the official documentation: Finding message threads in the wild
Deleting thread messages
You can delete a thread message the same way as with normal message using the chat.delete method.
来源：https://stackoverflow.com/questions/52657092/i-want-to-find-thread-message-and-delete-it-with-slack-api