from firebase_functions import firebase_functions

​

def hello_world(request):

    return 'Hello, World!'

​

firebase_functions.https.on_request(hello_world)

import firebase_admin

from firebase_admin import credentials, firestore, initialize_app

​

# Initialize Firebase

cred = credentials.Certificate('path/to/serviceAccountKey.json')

firebase_admin.initialize_app(cred)

​

# Get a reference to the Firestore database

db = firestore.client()

​

# Define the Firebase Function

def my_function(data, context):

    # Access incoming data

    name = data['name']

    age = data['age']

​

    # Perform some operations

    result = name.upper() + " is " + str(age) + " years old."

​

    # Update Firestore document

    doc_ref = db.collection('users').document()

    doc_ref.set({'result': result})

​

# Export the Firebase Function

exported_function = my_function

​

# Deploy the Firebase Function

# Run this command in your terminal: firebase deploy --only functions

# Here is a sample from https://cloud.google.com/functions/docs/calling/cloud-firestore#functions_firebase_firestore-python

​

import json

def hello_firestore(data, context):

    """ Triggered by a change to a Firestore document.

    Args:

        data (dict): The event payload.

        context (google.cloud.functions.Context): Metadata for the event.

    """

    trigger_resource = context.resource

​

    print('Function triggered by change to: %s' % trigger_resource)

​

    print('\nOld value:')

    print(json.dumps(data["oldValue"]))

​

    print('\nNew value:')

    print(json.dumps(data["value"]))