docs(readme): add Greenkeeper badge

chore: add Greenkeeper config file
📚 tip for switching
2018-09-30 03:25:24 +00:00 · 2018-09-30 03:25:21 +00:00 · 2018-08-13 17:41:33 -07:00 · 2018-07-10 14:38:05 -07:00 · 2018-04-30 11:43:41 -07:00 · 2018-04-18 10:13:56 -07:00
7 changed files with 9480 additions and 2529 deletions
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # create-react-app with a Node server on Heroku

+[![Greenkeeper badge](https://badges.greenkeeper.io/mars/heroku-cra-node.svg)](https://greenkeeper.io/)
+
 A minimal example of using a Node backend (server for API, proxy, & routing) with a [React frontend](https://github.com/facebookincubator/create-react-app).

 To deploy a frontend-only React app, use the static-site optimized  
@@ -10,14 +12,17 @@ To deploy a frontend-only React app, use the static-site optimized

 ## Design Points

-A combo of two npm projects, the backend server and the frontend UI. So there are two `package.json` configs.
+A combo of two npm projects, the backend server and the frontend UI. So there are two `package.json` configs and thereforce [two places to run `npm` commands](#user-content-local-development):

-  1. [`package.json`](package.json) for [Node server](server/) & [Heroku deploy](https://devcenter.heroku.com/categories/deployment)
-      * `heroku-postbuild` script compiles the webpack bundle during deploy
-      * `cacheDirectories` includes `react-ui/node_modules/` to optimize build time
-  2. [`react-ui/package.json`](react-ui/package.json) for [React web UI](react-ui/)
+  1. [**Node server**](server/): [`./package.json`](package.json)
+      * [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

+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.

 ## Demo

@@ -61,10 +66,13 @@ If an app was previously deployed with [create-react-app-buildpack](https://gith

    ```bash
    mkdir react-ui
-    git mv [!react-ui]* react-ui/
-    # You'll see "fatal: Not a git repository"; let's fix that error
+    git mv -k [!react-ui]* react-ui/
+    mv node_modules react-ui/
+    
+    # If you see "fatal: Not a git repository", then fix that error
    mv react-ui/.git ./
    ```
+    ⚠️ *Some folks have reported problems with these commands. Using the `bash` shell will probably allow them to work. Sorry if they do not work for you, know that the point is to move **everything** in the repo into the `react-ui/` subdirectory. Except for `.git/` which should remain at the root level.* 
 1. Create a root [`package.json`](package.json), [`server/`](server/), & [`.gitignore`](.gitignore) modeled after the code in this repo
 1. Commit and deploy ♻️
  
@@ -77,7 +85,12 @@ If an app was previously deployed with [create-react-app-buildpack](https://gith

 ## Local Development

-### Run the API Server
+Because this app is made of two npm projects, there are two places to run `npm` commands:
+
+1. **Node API server** at the root `./`
+1. **React UI** in `react-ui/` directory.
+
+### Run the API server

 In a terminal:

@@ -89,6 +102,12 @@ npm install
 npm start
 ```

+#### Install new npm packages for Node
+
+```bash
+npm install package-name --save
+```
+

 ### Run the React UI

@@ -106,3 +125,12 @@ npm install
 # Start the server
 npm start
 ```
+
+#### Install new npm packages for React UI
+
+```bash
+# Always change directory, first
+cd react-ui/
+
+npm install package-name --save
+```
--- a/greenkeeper.json
+++ b/greenkeeper.json
@@ -0,0 +1,10 @@
+{
+  "groups": {
+    "default": {
+      "packages": [
+        "package.json",
+        "react-ui/package.json"
+      ]
+    }
+  }
+}
--- a/package-lock.json
+++ b/package-lock.json
@@ -2,27 +2,86 @@
  "name": "heroku-cra-node",
  "version": "1.0.0",
  "lockfileVersion": 1,
+  "requires": true,
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      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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+      "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
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+        },
+        "statuses": {
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+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
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+    "bytes": {
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+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
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@@ -33,16 +92,6 @@
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-      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.0.tgz",
-      "integrity": "sha1-9HTKXmqSRtb9jglTz6m5yAWvp44="
-    },
-    "http-errors": {
-      "version": "1.6.1",
-      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.1.tgz",
-      "integrity": "sha1-X4uO2YrKVFZWv1cplzh/kEpyIlc="
+    "iconv-lite": {
+      "version": "0.4.19",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
+      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
    },
    "inherits": {
      "version": "2.0.3",
      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
    },
-    "ipaddr.js": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.3.0.tgz",
-      "integrity": "sha1-HgOlL9rYOou7KyXL9JmLTP/NPew="
-    },
    "media-typer": {
      "version": "0.3.0",
      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -118,11 +345,6 @@
      "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
    },
-    "mime": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.3.4.tgz",
-      "integrity": "sha1-EV+eO2s9rylZmDyzjxSaLUDrXVM="
-    },
    "mime-db": {
      "version": "1.27.0",
      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.27.0.tgz",
@@ -131,7 +353,10 @@
    "mime-types": {
      "version": "2.1.15",
      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.15.tgz",
-      "integrity": "sha1-pOv1BkCUVpI3uM9wBGd20J/JKu0="
+      "integrity": "sha1-pOv1BkCUVpI3uM9wBGd20J/JKu0=",
+      "requires": {
+        "mime-db": "~1.27.0"
+      }
    },
    "ms": {
      "version": "2.0.0",
@@ -146,42 +371,54 @@
    "on-finished": {
      "version": "2.3.0",
      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
-      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc="
-    },
-    "parseurl": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.1.tgz",
-      "integrity": "sha1-yKuMkiO6NIiKpkopeyiFO+wY2lY="
+      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+      "requires": {
+        "ee-first": "1.1.1"
+      }
    },
    "path-to-regexp": {
      "version": "0.1.7",
      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
      "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
    },
-    "proxy-addr": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-1.1.4.tgz",
-      "integrity": "sha1-J+VF9pYKRKYn2bREZ+NcG2tM4vM="
-    },
-    "qs": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
-      "integrity": "sha1-E+JtKK1rD/qpExLNO/cI7TUecjM="
-    },
    "range-parser": {
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.0.tgz",
      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
    },
-    "send": {
-      "version": "0.15.3",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.15.3.tgz",
-      "integrity": "sha1-UBP5+ZAj31DRvZiSwZ4979HVMwk="
+    "raw-body": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.2.tgz",
+      "integrity": "sha1-vNYMd9Prk83gBQKVw/N5OJvIj4k=",
+      "requires": {
+        "bytes": "3.0.0",
+        "http-errors": "1.6.2",
+        "iconv-lite": "0.4.19",
+        "unpipe": "1.0.0"
+      },
+      "dependencies": {
+        "depd": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.1.tgz",
+          "integrity": "sha1-V4O04cRZ8G+lyif5kfPQbnoxA1k="
+        },
+        "http-errors": {
+          "version": "1.6.2",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.2.tgz",
+          "integrity": "sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=",
+          "requires": {
+            "depd": "1.1.1",
+            "inherits": "2.0.3",
+            "setprototypeof": "1.0.3",
+            "statuses": ">= 1.3.1 < 2"
+          }
+        }
+      }
    },
-    "serve-static": {
-      "version": "1.12.3",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.12.3.tgz",
-      "integrity": "sha1-n0uhni8wMMVH+K+ZEHg47DjVseI="
+    "safe-buffer": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
+      "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
    },
    "setprototypeof": {
      "version": "1.0.3",
@@ -196,22 +433,16 @@
    "type-is": {
      "version": "1.6.15",
      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.15.tgz",
-      "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA="
+      "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA=",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.15"
+      }
    },
    "unpipe": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
-    },
-    "utils-merge": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.0.tgz",
-      "integrity": "sha1-ApT7kiu5N1FTVBxPcJYjHyh8ivg="
-    },
-    "vary": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.1.tgz",
-      "integrity": "sha1-Z1Neu2lMHVIldFeYRmUyP1h+jTc="
    }
  }
 }
--- a/package.json
+++ b/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",
@@ -14,7 +14,7 @@
    "react-ui/node_modules"
  ],
  "dependencies": {
-    "express": "^4.14.1"
+    "express": "^4.16.3"
  },
  "repository": {
    "type": "git",
--- a/react-ui/package-lock.json
+++ b/react-ui/package-lock.json
--- a/react-ui/package.json
+++ b/react-ui/package.json
@@ -3,11 +3,11 @@
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
-    "react-scripts": "0.9.5"
+    "react-scripts": "^1.1.4"
  },
  "dependencies": {
-    "react": "^15.4.2",
-    "react-dom": "^15.4.2"
+    "react": "^16.4.1",
+    "react-dom": "^16.4.1"
  },
  "scripts": {
    "start": "react-scripts start",
--- a/server/index.js
+++ b/server/index.js
@@ -1,23 +1,41 @@
 const express = require('express');
 const path = require('path');
+const cluster = require('cluster');
+const numCPUs = require('os').cpus().length;

-const app = express();
 const PORT = process.env.PORT || 5000;

-// Priority serve any static files.
-app.use(express.static(path.resolve(__dirname, '../react-ui/build')));
+// Multi-process to utilize all CPU cores.
+if (cluster.isMaster) {
+  console.error(`Node cluster master ${process.pid} is running`);

-// Answer API requests.
-app.get('/api', function (req, res) {
-  res.set('Content-Type', 'application/json');
-  res.send('{"message":"Hello from the custom server!"}');
-});
+  // Fork workers.
+  for (let i = 0; i < numCPUs; i++) {
+    cluster.fork();
+  }

-// All remaining requests return the React app, so it can handle routing.
-app.get('*', function(request, response) {
-  response.sendFile(path.resolve(__dirname, '../react-ui/build', 'index.html'));
-});
+  cluster.on('exit', (worker, code, signal) => {
+    console.error(`Node cluster worker ${worker.process.pid} exited: code ${code}, signal ${signal}`);
+  });

-app.listen(PORT, function () {
-  console.log(`Listening on port ${PORT}`);
-});
+} else {
+  const app = express();
+
+  // Priority serve any static files.
+  app.use(express.static(path.resolve(__dirname, '../react-ui/build')));
+
+  // Answer API requests.
+  app.get('/api', function (req, res) {
+    res.set('Content-Type', 'application/json');
+    res.send('{"message":"Hello from the custom server!"}');
+  });
+
+  // All remaining requests return the React app, so it can handle routing.
+  app.get('*', function(request, response) {
+    response.sendFile(path.resolve(__dirname, '../react-ui/build', 'index.html'));
+  });
+
+  app.listen(PORT, function () {
+    console.error(`Node cluster worker ${process.pid}: listening on port ${PORT}`);
+  });
+}
Author	SHA1	Message	Date
greenkeeper[bot]	104aad7f73	docs(readme): add Greenkeeper badge	2018-09-30 03:25:24 +00:00
greenkeeper[bot]	141e4bd4e2	chore: add Greenkeeper config file	2018-09-30 03:25:21 +00:00
Mars Hall	f821f3878f	📚 tip for switching	2018-08-13 17:41:33 -07:00
Mars Hall	c77492f74d	Update all packages	2018-07-10 14:38:05 -07:00
Mars Hall	a507d52db4	Enable Node.js Language Metrics	2018-04-30 11:43:41 -07:00
Mars Hall	91c10ad95b	📚 clarify how this is "two npm projects"	2018-04-18 10:13:56 -07:00
Mars Hall	047761bfd5	📚 fix Markdown foible	2018-03-17 17:55:34 -07:00
Mars Hall	a86ec2778d	📚 Update "Switching from create-react-app-buildpack" directions	2018-03-17 17:53:46 -07:00
Mars Hall	3e5ed66d1d	Multi-process (#17 ) * Multi-process across all CPU cores * 📚 multi-processing w/ Node Cluster API	2018-02-05 22:06:59 -08:00
Mars Hall	e7a5eb4ca5	Update deployment runtime to Node 8.9.x (#16 )	2018-02-05 21:10:11 -08:00
Mars Hall	342b99fb18	Update CRA packages to current versions (#15 )	2018-02-05 21:01:57 -08:00