Switch to Heroku Node.js auto-build

Author: mars

README.md

@@ -16,9 +16,8 @@ A combo of two npm projects, the backend server and the frontend UI. So there ar
  * [deployed automatically](https://devcenter.heroku.com/categories/deployment) via heroku/nodejs buildpack
  2. [**React UI**](react-ui/): [`react-ui/package.json`](react-ui/package.json)
  * generated by [create-react-app](https://github.com/facebookincubator/create-react-app)
- * deployed via build hooks in the Node server's [`./package.json`](package.json)
- * module cache configured by `cacheDirectories`
- * bundling via `heroku-postbuild` hook
+ * deployed via `build` script in the Node server's [`./package.json`](package.json)
+ * module cache configured by `cacheDirectories`
 
 Includes a minimal [Node Cluster](https://nodejs.org/docs/latest-v8.x/api/cluster.html) [implementation](server/index.js) to parallelize the single-threaded Node process across the available CPU cores.
 
@@ -41,7 +40,7 @@ This deployment will automatically:
  * detect [Node buildpack](https://elements.heroku.com/buildpacks/heroku/heroku-buildpack-nodejs)
  * build the app with
  * `npm install` for the Node server
- * `heroku-postbuild` for create-react-app
+ * `npm run build` for create-react-app
  * launch the web process with `npm start`
  * serves `../react-ui/build/` as static files
  * customize by adding API, proxy, or route handlers/redirectors

package.json

@@ -1,13 +1,13 @@
 {
  "name": "heroku-cra-node",
- "version": "1.0.0",
+ "version": "2.0.0",
  "description": "How to use create-react-app with a custom Node API on Heroku",
  "engines": {
  "node": "10.x"
  },
  "scripts": {
  "start": "node server",
- "heroku-postbuild": "cd react-ui/ && npm install && npm install --only=dev --no-shrinkwrap && npm run build"
+ "build": "cd react-ui/ && npm install && npm install --only=dev --no-shrinkwrap && npm run build"
  },
  "cacheDirectories": [
  "node_modules",