ReactJS Continuous Deployment to Firebase Hosting using Circle CI

Doing the same thing is very bored. On this topic, the boring part is deploying our Web Application to Firebase Hosting. The steps that we do are:
  • Test your react app,
    yarn test
  • Push to
    git
  • Build your react app,
    yarn build
  • Do deployment to firebase hosting,
    firebase deploy

The above steps is very bored, in this article I try to share my experience to summarize the four jobs above into one. So all we need to do is push changes to the git repository, and CircleCI will do everything.

Requirements

Before starting further, you must have the five requirements below :

  1. React App.
  2. Firebase Project, go to here.
  3. Git repository. My repository for this tutorial, here.
  4. Firebase Command Line Tools, go to here.
  5. CircleCI account, go to here.

Let’s start!

1. Configure Firebase

Create a React project, in this tutorial I will using

create-react-app
$ create-react-app learn-cd-react-firebase
$ cd learn-cd-react-firebase
$ yarn install
$ yarn build
We need configure our project to connect with Firebase, do

firebase login
$ firebase login

? Allow Firebase to collect anonymous CLI usage and error reporting information? No
Visit this URL on any device to log in:
https://accounts.google.com/o/oauth2/auth?client_id=563584335869-xxxxxxx
Waiting for authentication...
✔  Success! Logged in as [email protected]
Do

firebase init

, this will setup a new Firebase project in the current directory. This command will create a

firebase.json

configuration file in your current directory.

Use spaces to make choice, choose

Hosting
You're about to initialize a Firebase project in this directory:
/Users/arryanggaalievpratamaputra/sites/learn-cd-react-firebase
? Which Firebase CLI features do you want to setup for this folder? Press Space to select features, then Enter to confirm your choices.
 ◯ Database: Deploy Firebase Realtime Database Rules
 ◯ Firestore: Deploy rules and create indexes for Firestore
 ◯ Functions: Configure and deploy Cloud Functions
❯◉ Hosting: Configure and deploy Firebase Hosting sites
 ◯ Storage: Deploy Cloud Storage security rules

Choose your Firebase Project

First, let's associate this project directory with a Firebase project. You can create multiple project aliases by running firebase use --add, but for now we'll just set up a default project.
? Select a default Firebase project for this directory:
  [don't setup a default project]
  mws-surabaya (mws-surabaya)
❯ learn-cd-react-firebase (learn-cd-react-firebase)
  [create a new project]
Configure public directory, type

build

,

create-react-app

project will generate your build into

build

folder. Configure as a single-page app, type

Yes
=== Hosting Setup
Your public directory is the folder (relative to your project directory) that
will contain Hosting assets to be uploaded with firebase deploy. If you
have a build process for your assets, use your build's output directory.
? What do you want to use as your public directory? build
? Configure as a single-page app (rewrite all urls to /index.html)? Yes
? File build/index.html already exists. Overwrite? No
i  Skipping write of build/index.html
i  Writing configuration info to firebase.json...
i  Writing project information to .firebaserc...
✔  Firebase initialization complete!

2. Deploy to Firebase Manually

To make sure whether that our Firebase Hosting can be used, we’ll try to do Deployment manually.

We do builds with commands

yarn build
yarn run v1.10.1
$ react-scripts build
Creating an optimized production build...
Compiled successfully.
File sizes after gzip:
34.71 KB  build/static/js/1.fa92c112.chunk.js
  763 B     build/static/js/runtime~main.229c360f.js
  713 B     build/static/js/main.b50be446.chunk.js
  511 B     build/static/css/main.3a30845b.chunk.css
The project was built assuming it is hosted at the server root.
You can control this with the homepage field in your package.json.
For example, add this to build it for GitHub Pages:
"homepage" : "https://learn-cd-react-firebase.firebaseapp.com",
The build folder is ready to be deployed.
You may serve it with a static server:
yarn global add serve
  serve -s build
Find out more about deployment here:
http://bit.ly/CRA-deploy
✨  Done in 13.14s.
After build success, we do deployment to Firebase with commands

firebase deploy
=== Deploying to 'learn-cd-react-firebase'...
i  deploying hosting
i  hosting[learn-cd-react-firebase]: beginning deploy...
i  hosting[learn-cd-react-firebase]: found 15 files in build
✔  hosting[learn-cd-react-firebase]: file upload complete
i  hosting[learn-cd-react-firebase]: finalizing version...
✔  hosting[learn-cd-react-firebase]: version finalized
i  hosting[learn-cd-react-firebase]: releasing new version...
✔  hosting[learn-cd-react-firebase]: release complete
✔  Deploy complete!
Project Console: https://console.firebase.google.com/project/learn-cd-react-firebase/overview
Hosting URL: https://learn-cd-react-firebase.firebaseapp.com

3. Configure CircleCI with Our Project

(Press Setup Project button)

Choose

Linux

as operating system, and

Node

as our language.

Back to our project, and create CircleCI configuration

  • Create a folder named 
    .circleci
  • Add a file
    config.yml

    (so that the filepath be in 

    .circleci/config.yml

    ).

  • Populate the
    config.yml

    with the contents of the sample

    config.yml
  • Copy this sample to our repository
version: 2
jobs:
  build:
    docker:
      - image: 'circleci/node:8'
    working_directory: ~/repo
    steps:
      - checkout
      - restore_cache:
          keys:
            - 'v1-dependencies-{{ checksum "package.json" }}'
            - v1-dependencies-
      - run: 'yarn install'
      - save_cache:
          paths:
            - node_modules
          key: 'v1-dependencies-{{ checksum "package.json" }}'
      - run: 'yarn test'
Push this change up to GitHub, and Start building! You need to press blue button labeled as

Start building

!

(If building success, you will see this)

4. Deploy to Firebase Hosting from CircleCI

This step will allow us to deploy our project automatically to Firebase Hosting. Generate a Firebase CI token.

$ firebase login:ci
Visit this URL on any device to log in:
https://accounts.google.com/o/oauth2/auth?client_id=563584335869-fgrhgmd
Waiting for authentication...
✔  Success! Use this token to login on a CI server:
1/qV80aq1eE06WJkIkwEmkkoU12iIKq2DYOV2gNiTmg
Example: firebase deploy --token "$FIREBASE_TOKEN"

Go to project setting

(Project Setting)

Go to environtment variables

(Environtment Variables menu at CircleCI)

Add variable

FIREBASE_TOKEN

, fill with the token value that we have got before.

Open 

.circleci/config.yml

. Add this line to the bottom of

config.yml
- run:
    name: 'Build Project'
    command: 'yarn build'
- run:
    name: 'Deploy to Firebase Hosting'
    command: './node_modules/.bin/firebase deploy --token=$FIREBASE_TOKEN'

We have now setup a continuous deployment to deploy your project to Firebase Hosting.

If you are stuck at any point in the sections above or if I have made a mistake somewhere or missed an essential point, do let me know in the comments.

read original article here