Delete a reaction from a message

This guide explains how to use the delete method on the Reaction resource of the Google Chat API to delete a reaction from a message—like 👍, 🚲, and 🌞. Deleting a reaction doesn't delete the message.

The Reaction resource represents an emoji that people can use to react to a message, such as 👍, 🚲, and 🌞.

Prerequisites

Python

  • Python 3.6 or greater
  • The pip package management tool

  • The latest Google client libraries for Python. To install or update them, run the following command in your command-line interface:

    pip3 install --upgrade google-api-python-client google-auth-oauthlib
  • A Google Cloud project with the Google Chat API enabled and configured. For steps, see Build a Google Chat app.

  • Authorization configured for the Chat app. Deleting a reaction requires User authentication with the chat.messages.reactions or chat.messages authorization scope.

Delete a reaction

To delete a reaction from a message, pass the following in your request:

  • Specify the chat.messages.reactions or the chat.messages authorization scope.
  • Call the delete method on the Reaction resource.
  • Set name to the resource name of the reaction to delete.

The following example deletes the 😀 reaction from a message:

Python

  1. In your working directory, create a file named chat_reaction_delete.py.

  2. Include the following code in chat_reaction_delete.py:

    from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build

# Define your app's authorization scopes.
# When modifying these scopes, delete the file token.json, if it exists.
SCOPES = ["https://www.googleapis.com/auth/chat.messages.reactions"]

def main():
    '''
    Authenticates with Chat API via user credentials,
    then deletes a reaction to a message.
    '''

    # Authenticate with Google Workspace
    # and get user authorization.
    flow = InstalledAppFlow.from_client_secrets_file(
                      'client_secrets.json', SCOPES)
    creds = flow.run_local_server()

    # Build a service endpoint for Chat API.
    chat = build('chat', 'v1', credentials=creds)

    # Use the service endpoint to call Chat API.
    result = chat.spaces().messages().reactions().delete(

        # The reaction to delete.
        #
        # Replace SPACE with a space name.
        # Obtain the space name from the spaces resource of Chat API,
        # or from a space's URL.
        #
        # Replace MESSAGE with a message name.
        # Obtain the message name from the response body returned
        # after creating a message asynchronously with Chat REST API.
        #
        # Replace REACTION with a reaction name.
        # Obtain the reaction name from the reaction resource of Chat API.
        name = 'spaces/SPACE/messages/MESSAGE/reactions/REACTION'

    ).execute()

if __name__ == '__main__':
    main()

  3. In the code, replace the following:

    • SPACE: a space name, which you can obtain from the spaces.list method in the Chat API, or from a space's URL.
    • MESSAGE: a message name, which you can obtain from the response body returned after creating a message asynchronously with Chat API, or with the custom name assigned to the message at creation.
    • REACTION: a reaction name, which you can obtain from the spaces.messages.reactions.list method in the Chat API or from the response body returned after creating a reaction asynchronously with the Chat API.

  4. In your working directory, build and run the sample:

    python3 chat_reaction_delete.py

If successful, the response body is empty, which indicates that the reaction is deleted.