Helper devserver, serve static files and proxy to api/tileserver

devserver/index.js

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+/**
+ * Dev server for local development 
+ * - serve static files from frontend
+ * - proxy /api calls to 8081
+ * - proxy /tiles calls to 8082
+ */
+const path = require('path')
+
+const express = require('express')
+const proxy = require('express-http-proxy');
+
+const app = express()
+app.use(express.static(path.join(__dirname, '..', 'frontend')))
+app.use('/api', proxy('localhost:8081'))
+app.use('/tiles', proxy('localhost:8082'))
+
+app.listen(8080, () => console.log('Dev server listening on port 8080...'))

devserver/package.json

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+{
+  "name": "cl-devserver",
+  "version": "1.0.0",
+  "description": "Development server to proxy",
+  "private": true,
+  "scripts": {
+    "start": "node index.js",
+    "debug": "DEBUG=express:* node index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Tom Russell",
+  "license": "GPL-3.0",
+  "dependencies": {
+    "express": "^4.16.3",
+    "express-http-proxy": "^1.2.0"
+  }
+}