Mattermost

• Send messagePost a message to a channel, or reply in a thread by giving the thread's first post. Mark it Important or Urgent to highlight it (Entry, Professional and Enterprise servers).
• Get postGet one post with its text, author, thread and reactions.
• Edit postReplace a post's text. Only your own posts, unless the account may edit others' posts.
• Delete postDelete a post. Deleting a thread's first post deletes its replies too.
• List channel postsList a channel's posts, newest first, a page at a time, or every post created or changed since a moment (up to 1,000).
• Get threadGet a thread, with its first post and every reply, oldest first. Any post in the thread will do.
• Search postsSearch a team's messages. Supports Mattermost's search syntax: "exact phrase", from:username, in:channel-name, before:/after:/on: YYYY-MM-DD and -excluded words.
• Pin postPin a post to its channel, so it shows under the channel's pinned messages.
• Add reactionReact to a post with an emoji, as the connected account.
• Create channelCreate a public or private channel in a team. You become its admin.
• Get channelGet one channel with its name, purpose, header and message count.
• List my channelsList every channel the connected account is in on a team: public, private, direct and group messages.
• Update channelChange a channel's name, URL name, purpose or header. Fields left empty stay as they are. Direct messages only take a header.
• Archive channelArchive a public or private channel. Its messages are kept, and an admin can restore it in Mattermost.
• Add people to channelAdd one or more people to a channel. They must already be on the channel's team. 'me' adds the connected account.
• Remove person from channelRemove someone from a public or private channel. 'me' makes the connected account leave it.
• Open direct messageOpen the direct-message channel between the connected account and one person, creating it if needed. Send to it with 'Send message' and the returned channel id.
• List my teamsList every team the connected account is on, with their ids.
• Search peopleFind people by username, name, nickname or email. Use it to look up the user id other actions need.
• Get personGet one person's profile by user id. Leave it as 'me' for the connected account.

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