Get details about a user's or Google Chat app's membership

This guide explains how to use the get method on the membership resource of the Google Chat API to get details about a user's or Chat app's membership in a space.

The Membership resource represents whether a human user or Google Chat app is invited to, part of, or absent from a space.

Authenticating with app authentication lets a Chat app get memberships from spaces that it has access to in Google Chat (for example, spaces it's a member of), but excludes Chat app memberships, including its own. Authenticating with user authentication returns memberships from spaces that the authenticated user has access to.

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-httplib2 google-auth-oauthlib oauth2client

  • A published Chat app. To create and publish a Chat app, see Build a Google Chat app.

  • Authorization configured for the Chat app. Getting a membership supports both of the following authentication methods:

Get details about a user's or Chat app's membership

To get details about a membership in Google Chat, pass the following in your request:

  • With app authentication, specify the chat.bot authorization scope. With user authentication, specify the chat.memberships.readonly or chat.memberships authorization scope. As a best practice, choose the most restrictive scope that still allows your app to function.
  • Call the get method on the membership resource.
  • Pass the name of the membership to get. Obtain the membership name from the membership resource of Google Chat.

Here's how to get a membership with user authentication:

Python

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

  2. Include the following code in chat_membership_get.py:

    import os.path

from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError

# 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.memberships.readonly"]

def main():
    '''
    Authenticates with Chat API via user credentials,
    then gets details about a specified membership.
    '''

    # 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().members().get(

        # The membership to get.
        #
        # Replace SPACE with a space name.
        # Obtain the space name from the spaces resource of Chat API,
        # or from a space's URL.
        #
        # Replace MEMBER with a membership name.
        # Obtain the membership name from the memberships resource of
        # Chat API.
        name='spaces/SPACE/members/MEMBER'

    ).execute()

    # Prints details about the created membership.
    print(result)

if __name__ == '__main__':
    main()

  3. In the code, replace the following:

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

    python3 chat_membership_get.py

The Chat API returns an instance of membership detailing the specified membership.