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koa-react-app

Starter project that leverages create-react-app with a Koa service. 10 easy (and tedious) steps!

Setup

1. Install deps

    yarn add --dev react-scripts babel-preset-env babel-cli nodemon
    yarn add react react-dom
    yarn add koa koa-router@next koa-static koa-bodyparser
   

2. Create src paths

    mkdir ./src && mkdir ./src/service
   

3. Copy out react-scripts template folders

    cp -r ./node_modules/react-scripts/template/src ./src/client
    cp -r ./node_modules/react-scripts/template/public ./public
   

4. Add scripts section to package.json

    "scripts": {
      "eject": "react-scripts eject",
      "start": "yarn build:client && yarn build:service && yarn start:service",
      "start:dev": "(yarn build:service && yarn start:service:dev) & yarn watch:client & yarn watch:service",
      "build:client": "node ./scripts/build.js",
      "watch:client": "node ./scripts/start.js",
      "start:service": "node ./lib/service/index.js",
      "start:service:dev": "nodemon ./lib/service/index.js",
      "watch:service": "NODE_ENV=development babel --watch ./src/service -d ./lib/service",
      "build:service": "NODE_ENV=production babel ./src/service -d ./lib/service"
    }
   

5. Run "eject".

    yarn eject
   

6. Update ./config/paths.js to match new src/client folder

    // config after eject: we're in ./config/
    module.exports = {
      appBuild: resolveApp('build'),
      appPublic: resolveApp('public'),
      appHtml: resolveApp('public/index.html'),
      appIndexJs: resolveApp('src/client/index.js'),
      appPackageJson: resolveApp('package.json'),
      appSrc: resolveApp('src/client'),
      yarnLockFile: resolveApp('yarn.lock'),
      testsSetup: resolveApp('src/client/setupTests.js'),
      appNodeModules: resolveApp('node_modules'),
      nodePaths: nodePaths,
      publicUrl: getPublicUrl(resolveApp('package.json')),
      servedPath: getServedPath(resolveApp('package.json'))
    };
   

7. Add an index.js file to ./src/service with the following code

    import Koa from 'koa';
    import koaStatic from 'koa-static';
    import KoaRouter from 'koa-router';
    
    const app = new Koa();
    const router =  new KoaRouter();
    
    router.get('/api/test', async (ctx) => {
       ctx.body = {
         data: 'Api test successful'
       };
    });
    
    app.use(router.routes());
    app.use(koaStatic('./build'));
    
    const port = 4000;
    
    app.listen(port, () => {
      console.log(`Service started on port ${port}`);
    });
   

8. Add a .babelrc file to ./src/service

    {
      "presets": [
        ["env", {
          "targets": {
            "node": "current"
          }
        }]
      ]
    }
   

9. Add a "proxy" entry to package.json

    "proxy": "http://localhost:4000"
   

10. Run yarn start:dev or yarn start