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Creating Firebase Cloud Functions

Scenario: You want to create custom serverless functions for your trackjs/javascript-gameshow project using Firebase Cloud Functions. Follow the official documentation on creating Firebase Cloud Functions at https://github.com/trackjs/javascript-gameshow#firebase-cloud-functions.

Codebase Files and Directories:

  • audience-app/
    • ...
  • presenter-app/
    • ...

Documentation:

  1. https://www.educative.io/blog/a-quick-dive-into-firebase: This blog post provides a comprehensive introduction to Firebase and its features. It covers setting up a Firebase app, choosing features, and connecting to the Cloud Firestore database.
  2. https://opentelemetry.io/docs/specs/semconv/resource/faas: This document explains the OpenTelemetry semantic conventions for Function as a Service (FaaS) resources. It covers the function, function version, function name, and other relevant attributes.
  3. https://www.educative.io/blog/why-i-use-firebase-for-everything-i-build: This blog post discusses the benefits of using Firebase for various use cases, including serverless functions.
  4. https://sweetcode.io/heroku-alternatives-for-deploying-your-web-apps: This article compares Heroku with Firebase as alternatives for deploying web apps and mentions Firebase's support for serverless functions.
  5. https://grafana.com/grafana/plugins/pgollangi-firestore-datasource: This plugin enables integrating data on Firestore into Grafana dashboards.
  6. https://www.educative.io/blog/a-quick-dive-into-firebase: This blog post explains how to get started with Firebase, including creating a Firebase account, creating a Firebase app, and setting up authentication and the Realtime Database/Cloud Firestore.
  7. https://sweetcode.io/aws-lambda-azure-functions: This article compares AWS Lambda, Azure Functions, and Google Cloud Functions, including their trigger types.
  8. https://www.educative.io/blog/a-quick-dive-into-firebase: This blog post discusses Firebase Cloud Messaging (FCM) and its benefits, such as easy and reliable authentication and sending messages to targeted groups.
  9. https://kubevela.io/docs/end-user/components/cloud-services/terraform/gcp-cloudfunction: This documentation provides information on deploying a Cloud Function to Google Cloud Platform using Terraform.

Steps to Create Firebase Cloud Functions:

  1. Install Firebase CLI:

    npm install -g firebase-tools
    
  2. Initialize Firebase in your project:

    firebase init functions
    

    Follow the prompts to set up the Firebase Cloud Functions project.

  3. Create a new function:

    firebase function:add <function_name>
    

    Replace <function_name> with the desired name for your function.

  4. Write the function code in the functions/<function_name>/index.js file.

  5. Configure the function:

    • Update the functions/<function_name>/package.json file with any required dependencies.
    • Update the functions/<function_name>/functions.js file with the exported function name.
    • Update the functions/<function_name>/index.ts file (if using TypeScript) with the function code and exports.
  6. Deploy the function:

    firebase deploy --only functions
    

Tests:

  1. Create a test file in the functions/<function_name>/__tests__/ directory with a name ending in .test.js or .ts.
  2. Write tests for your function using the Firebase Testing Library (firebase-functions-testing).
  3. Run the tests:
    npm run test
    

Additional Resources: