Explore Firebase's unified development platform; gain insights into authentication, Firestore, Cloud Functions, and deployment with CLI. Delve into hands-on web application creation and comprehensive tools.

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Firebase lesson

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Firebase is a unified application development platform to create, deploy, and monitor web and mobile experiences. It unites common product functions in a single platform, freeing engineers to create functionality and user experience rather than having to create the infrastructure.

This course is a comprehensive introduction to the Firebase 9 SDK through hands-on development of a web application. You’ll start with basic concepts and functions like authentication, database, and Cloud Storage with Firestore. You’ll then learn Cloud Functions for Firebase, environment variables, Security Rules, and hosting capabilities before deploying an application using the command line interface (CLI). At each step, you’ll get hands-on exercises to modify the code, see real-time output in your browser, and finish with an assessment.

By the end of this course, you’ll have all the tools you need to build and deploy a web application with the Firebase 9 SDK—the latest version of Firebase.

A Complete Guide to Firebase on the Web

The **Firebase Emulator Suite** is a command-line tool that allows us to run Firebase services on our local machine. It provides a set of advanced tools for building and testing applications locally. Developers can take advantage of the rich user interface of the Firebase Emulator Suite UI to test, prototype, and debug their applications quickly.


# How it works
Each Firebase service is assigned a port on localhost that accurately emulates the behavior of the service on the Firebase console. Thus, we can connect our applications directly to the emulators during development and perform tests across different platforms without ever touching production data. For example, we can connect our application to the Realtime Database emulator to safely read and write data to the database during testing and development. Background trigger functions meant to trigger due to Realtime Database events will automatically trigger on the Cloud Functions emulator.

After testing, our application automatically resumes communication with the Firebase services in production once the emulators are out of the way.


# Implementation
To use the Firebase Emulator Suite UI, we must install it with the Firebase CLI. The service initialization command begins the process to set up the Firebase Emulator Suite for our project.

1. Run the command below on a terminal in your local machine. Ensure that your current working directory is the directory containing your Firebase project:

Get a brief introduction to the Firebase Emulator Suite.

Introduction

Get Started with Firebase

Firebase Authentication

The Firebase Realtime Database

Cloud Firestore

Cloud Storage for Firebase

The Firebase CLI

Cloud Functions

Environment Variables in Firebase

Firebase Security Rules

Firebase Hosting

Firebase Assessment

Conclusion

Appendix

Introduction to the Firebase Emulator Suite

How it works