Use Github Action to deploy React app to Netlify

  • Generate a personal access token and create ACCESS_TOKEN variable under Settings -> Secrets.
  • Keep the personal access token in a safe place and do not lose it

Fix 404 not found when page is refreshed

My React app uses Reach Router library to route user from root / to /countries/:language. When I refreshes page with F5, reach router does not handle redirection and 404 page is returned.

In order to solve the problem in Netlify, I define a redirect rule in netlify.toml to redirect all routes to /index.html with HTTP status code 200.

  • Create netlify.toml in project directory
# Redirects and headers are GLOBAL for all builds – they do not get scoped to
# contexts no matter where you define them in the file.
# For context-specific rules, use _headers or _redirects files, which are
# PER-DEPLOY.

# A basic redirect rule
[[redirects]]
  from = "/*"
  to = "/index.html"
  status = 200

Update package.json to create npm script commands that Github Action workflow file depends

  • “npm run clean” deletes all files in dist/ directory
  • “npm run build” builds project and generates artifacts in dist/ directory
  "scripts": {
    "build": "parcel build src/index.html",
    "clean": "rm -rf ./dist/"
  }
  • Go to Actions tab of the github repo
  • Create netlify.yml under .github/workflow

Paste the follow code in the yaml file

# .github/workflows/netlify.yml
name: Build and Deploy to Netlify
on:
  push:
  pull_request:
    types: [opened, synchronize]
jobs:
  build:
    name: Deploying to netlify
    runs-on: ubuntu-latest
    steps:
      - name: Setup Node.js for use with actions
        uses: actions/setup-node@v1.1.0
        with:
          version:  12.x
      
      - name: Checkout branch
        uses: actions/checkout@v2
 
      # ( Build to ./dist or other directory... )
      - name: Clean install dependencies
        run: npm ci

      - name: Remove dist
        run: npm run clean

      - name: Build app
        run: npm run build
 
      - name: Deploy to Netlify
        uses: nwtgck/actions-netlify@v1.1.10
        with:
          publish-dir: './dist'
          netlify-config-path: './netlify.toml'
          production-branch: master
          github-token: ${{ secrets.ACCESS_SECRET }}
          deploy-message: "Deploy from GitHub Actions"
          enable-pull-request-comment: false
          enable-commit-comment: true
          overwrites-pull-request-comment: true
        env:
          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
        timeout-minutes: 1

netlify-config-path indicates the configuration path to Netlify platform.

Netlify environment variables

Login to Netlify to look up NETIFY_SITE_ID and NETIFY_AUTH_TOKEN.

Go to Team > Site > Settings > Site Information > API ID to copy down the NETLIFY_SITE_ID

Go to User Settings > Applications > Personal access token and clicks New Access Token button to generate a token. The token is your NETLIFY_AUTH_TOKEN and it should be kept in a safe location.

Now, you are ready to create NETLIFY_SITE_ID and NETLIFY_AUTH_TOKEN variables under Settings -> Secrets in Github.

We are done! There is no need to write custom deployment script and travis configuration file to automate the CI/CD process. Github notifies Netlify to automate the build process and publish the site when latest changes are committed.

References: