From f6b1849bff2677504d9cb01a54740b4b7929472a Mon Sep 17 00:00:00 2001
From: Mars Hall <mars@heroku.com>
Date: Thu, 9 Feb 2017 19:40:49 -0800
Subject: [PATCH] Support server-side URL routing to React app.

---
 server/index.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/server/index.js b/server/index.js
index ba97102..3b4d6d9 100644
--- a/server/index.js
+++ b/server/index.js
@@ -1,14 +1,23 @@
 const express = require('express');
+const path = require('path');
+
 const app = express();
 const PORT = process.env.PORT || 5000;
 
-app.use(express.static(__dirname + '/../react-ui/build'));
+// 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.log(`Listening on port ${PORT}`);
 });