From now on, you will be able to conveniently send FCM messages asynchronously through Python.

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Github: https://github.com/837477/aiopyfcm
PyPi: https://pypi.org/project/aiopyfcm

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You can now easily send asynchronous FCM messages!
aiopyfcm offers the following features:

• Support for sending FCM messages with Python's Asyncio
• Compatibility with all types of messages supported by FCM
• A user-friendly message sending interface
• Simple handling of Firebase credentials (Json File / Json String / Dict)
• Automatic access token refresh
• Enhanced performance efficiency by maintaining asynchronous sessions based on your needs
• Comprehensive control over all exception scenarios in FCM

Requirements

If you're planning to use FCM, you’ve probably already looked into it.
As you may know, google_application_credentials is required to use FCM.
Please note that the existing Cloud Messaging API server key will be deprecated on June 20, 2024. It's advisable to obtain a google_application_credentials key moving forward.

To authenticate a service account and allow it access to Firebase services, you'll need to generate a private key file in JSON format.

To generate a private key file for your service account:

1. In the Firebase console, open Settings: Service Accounts.
2. Click Generate New Private Key, then confirm by clicking Generate Key.
3. Securely store the JSON file containing the key.

For a more detailed explanation, please refer to the following official document.
https://firebase.google.com/docs/cloud-messaging/migrate-v1#provide-credentials-using-adc

Installation

$ pip install aiopyfcm

Example

You can use it flexibly according to your development situation. (Check it in the example.py file)

Authenticate Google Credentials

This sample shows how to authenticate with Google credentials.

import json
import aiopyfcm


def sample_authenticate():
    # Initialize the PyFCMAuthenticator object.
    authenticator = aiopyfcm.PyFCMAuthenticator()

    # If you want to authenticate with your Google credentials file path, use the following method.
    authenticator.init_credentials_from_file(
        credentials_file_path="<your_credentials_path>/credentials.json",
        auto_refresh=True  # Default is True
    )

    # If you want to Google credentials in a dictionary format, use the following method.
    credentials_dict = {
        "type": "service_account",
        "project_id": "<PROJECT_ID>",
        "private_key_id": "<PRIVATE_KEY_ID>",
        "private_key": "-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----\n",
        "client_email": "<SERVICE_ACCOUNT_EMAIL>",
        "client_id": "<CLIENT_ID>",
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://oauth2.googleapis.com/token",
        "auth_provider_x509_cert_url": "<auth_provider_x509_cert_url>",
        "client_x509_cert_url": "<client_x509_cert_url>",
        "universe_domain": "googleapis.com"
    }
    authenticator.init_credentials(
        credentials=credentials_dict,
        auto_refresh=True  # Default is True
    )

    # If you want to Google credentials as a JSON string, use the following method.
    credentials_dumps = json.dumps(credentials_dict)
    authenticator.init_credentials(
        credentials=credentials_dumps,
        auto_refresh=True  # Default is True
    )

    return authenticator

Refresh Access Token

This sample shows how to refresh the Google Access Token.

def sample_refresh_access_token():
    # If you set the auto_refresh value to False during the init_credentials process,
    # you will need to manually refresh the access_token.
    authenticator = sample_authenticate()
    authenticator.update_auto_refresh(False)

    # [Refresh the access token]
    # The validity period of a Google AccessToken is approximately 1 hour,
    # so you need to manually refresh it before it expires.
    authenticator.refresh_credentials()

    # If you set the auto_refresh flag to True,
    # the PyFCMAuthenticator will automatically refresh your access_token every 30 minutes.
    authenticator.update_auto_refresh(True)

Send Message

This sample shows how to send a message to FCM.

import asyncio
import aiopyfcm

async def send_stateful():
    """ 
    This sample is used when you want to maintain an asynchronous session of aiohttp.
    You can use resources efficiently by not opening a session every time you send.
    """
    # Get the PyFCMAuthenticator object.
    authenticator = sample_authenticate()

    # Initialize the AioPyFCM object.
    async_pyfcm = aiopyfcm.AioPyFCM(authenticator)

    # Create a message object.
    message = {
        "token": "<FCM_TOKEN>",
        "notification": {
            "title": "Sample Title",
            "body": "Sample Body",
            "image": "https://example.com/sample.jpg"
        }
    }

    # Send the message. (Stateful - Recommended)
    async with async_pyfcm as pyfcm:
        responses = await asyncio.gather(
            pyfcm.send(message),
            pyfcm.send(message),
            pyfcm.send(message),
        )
        print(responses)


async def send_stateless():
    """
    This sample does not maintain the aiohttp asynchronous session,
    so it connects the session every time you send.
    """

    # Get the PyFCMAuthenticator object.
    authenticator = sample_authenticate()

    # Initialize the AioPyFCM object.
    async_pyfcm = aiopyfcm.AioPyFCM(authenticator)

    # Create a message object.
    message = {
        "token": "<FCM_TOKEN>",
        "notification": {
            "title": "Sample Title",
            "body": "Sample Body",
            "image": "https://example.com/sample.jpg"
        }
    }

    # Send the message. (Stateless)
    responses = await asyncio.gather(
        async_pyfcm.send(message),
        async_pyfcm.send(message),
        async_pyfcm.send(message),
    )
    print(responses)

Contributing

The following is a set of guidelines for contributing to aiopyfcm. These are mostly guidelines, not rules.
Use your best judgment, and feel free to propose changes to this document in a pull request.

1. Please create a branch in this format, <Issue Number>-<Some name>
2. Open a terminal and navigate to your project path. And enter this. git config --global commit.template .gitmessage.txt
3. You can use the template, with git commit through vi. Not git commit -m
4. If you want to merge your work, please pull request to the develop branch.
5. Enjoy contributing!

If you have any other opinions, please feel free to suggest 😀

License

This project is licensed under the terms of the MIT license.