Slack

Send a message to a Slack channel

Description

Send a message to a Slack channel. Use this integration to post messages, list channels and users, send DMs, and reply in threads.

Authentication

• OAuth 2.0 - Connect your Slack workspace via the Plura OAuth flow.

Available Actions

• Post messages to channels
• Get channels list
• List users (single page or all pages)
• List installed workspaces
• Get channel ID by name
• Find user by email
• Get user info by ID
• Send direct messages
• Reply in threads

Examples

Example 1: Slack - Post to #all-integrations

Send a message to the all-integrations channel (name accepted; resolves to ID internally).

{
  "automationType": "slack",
  "nodeId": "slack-post-message-002",
  "nodeParams": {
    "operation": "post_message",
    "params": {
      "channel": "#all-integrations",
      "text": "Hello from Plura to #all-integrations!"
    }
  }
}

Example 2: Slack - Post Message

Send a message to a Slack channel using direct integration.

{
  "automationType": "slack",
  "nodeId": "slack-post-message-001",
  "nodeParams": {
    "operation": "post_message",
    "params": {
      "channel": "#general",
      "text": "Hello from Plura direct Slack!",
      "botUsername": "PluraBot",
      "botEmoji": ":robot_face:",
      "parseMode": "full",
      "unfurlLinks": true,
      "linkNames": true
    }
  }
}

Example 3: Slack - Get Channels

List Slack channels with pagination support.

{
  "automationType": "slack",
  "nodeId": "slack-get-channels-001",
  "nodeParams": {
    "operation": "get_channels",
    "params": {}
  }
}

Example 4: Slack - List Users (single page)

List Slack users with cursor pagination.

{
  "automationType": "slack",
  "nodeId": "slack-list-users-001",
  "nodeParams": {
    "operation": "list_users",
    "params": {
      "limit": 200
    }
  }
}

Example 5: Slack - List Users (all pages)

Fetch all Slack users by auto-paginating.

{
  "automationType": "slack",
  "nodeId": "slack-list-users-002",
  "nodeParams": {
    "operation": "list_users",
    "params": {
      "all": true
    }
  }
}

Example 6: Slack - List Installed Workspaces

List Slack workspaces (installations) available to the current account.

{
  "automationType": "slack",
  "nodeId": "slack-list-workspaces-001",
  "nodeParams": {
    "operation": "list_workspaces",
    "params": {}
  }
}

Example 7: Slack - Get Channel ID by Name

Resolve a channel ID from a channel name (e.g., #general → C123…).

{
  "automationType": "slack",
  "nodeId": "slack-get-channel-id-001",
  "nodeParams": {
    "operation": "get_channel_id",
    "params": {
      "name": "#general"
    }
  }
}

Example 8: Slack - Find User by Email

Retrieve Slack user profile by email.

{
  "automationType": "slack",
  "nodeId": "slack-find-user-001",
  "nodeParams": {
    "operation": "find_user_by_email",
    "params": {
      "email": "[e-mail]"
    }
  }
}

Example 9: Slack - Get User Info

Retrieve Slack user profile by user ID.

{
  "automationType": "slack",
  "nodeId": "slack-user-info-001",
  "nodeParams": {
    "operation": "get_user_info",
    "params": {
      "userId": "U012ABCDEF"
    }
  }
}

Example 10: Slack - Send Direct Message

Send a DM by userId or email.

{
  "automationType": "slack",
  "nodeId": "slack-send-dm-001",
  "nodeParams": {
    "operation": "send_dm",
    "params": {
      "email": "[e-mail]",
      "text": "Hello in DM!"
    }
  }
}

Example 11: Slack - Reply in Thread

Reply to a message thread by channel + threadTs.

{
  "automationType": "slack",
  "nodeId": "slack-reply-message-001",
  "nodeParams": {
    "operation": "reply_message",
    "params": {
      "channel": "C0123456789",
      "threadTs": "1733242342.000100",
      "text": "Replying in-thread"
    }
  }
}

Third-Party Documentation

• https://api.slack.com/web
• https://api.slack.com/methods/chat.postMessage
• https://api.slack.com/methods/users.list