Update deployment runtime to Node 8.9.x

* Add npm 5’s `package-lock.json`

* Upgrade deployment to Node 6.11

* Fix react-ui build command to work with npm 5.

* Revise react-ui build to honor lock file for production dependencies

README.md

@@ -43,6 +43,8 @@ This deployment will automatically:
     * serves `../react-ui/build/` as static files
     * customize by adding API, proxy, or route handlers/redirectors
 
+⚠️ Using npm 5’s new `package-lock.json`? We resolved a compatibility issue. See [PR](https://github.com/mars/heroku-cra-node/pull/10) for more details.
+
 👓 More about [deploying to Heroku](https://devcenter.heroku.com/categories/deployment).
 
 

app.json

@@ -0,0 +1,21 @@
+{
+  "name": "heroku-cra-node",
+  "description": "web app made of create-react-app UI + Node API",
+  "scripts": {
+  },
+  "env": {
+  },
+  "formation": {
+    "web": {
+      "quantity": 1
+    }
+  },
+  "addons": [
+
+  ],
+  "buildpacks": [
+    {
+      "url": "heroku/nodejs"
+    }
+  ]
+}

package.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "description": "How to use create-react-app with a custom Node API on Heroku",
   "engines": {
-    "node": "6.11.x"
+    "node": "8.9.x"
   },
   "scripts": {
     "start": "node server",

react-ui/package.json

@@ -3,11 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "devDependencies": {
-    "react-scripts": "0.9.5"
+    "react-scripts": "^1.1.0"
   },
   "dependencies": {
-    "react": "^15.4.2",
-    "react-dom": "^15.4.2"
+    "react": "^16.2.0",
+    "react-dom": "^16.2.0"
   },
   "scripts": {
     "start": "react-scripts start",