Merge with exercise project

server/server.js

@@ -0,0 +1,72 @@
+'use strict'
+
+const express = require( 'express' );
+const multer = require( 'multer' );
+const fs = require( 'fs' );
+const junk = require( 'junk' );
+let app = express();
+
+app.use( express.static('./') );
+
+// define file name and destination to save
+let storage = multer.diskStorage({
+  destination: (req, file, cb) => {
+    cb(null, __dirname +  '/images')
+  },
+  filename: (req, file, cb) => {
+    let ext = file.originalname.split( '.' );
+    ext = ext[ext.length - 1];
+    cb(null, 'uploads-' + Date.now() + '.' + ext);
+  }
+});
+
+// define what file type to accept
+let filter = ( req, file, cb ) => {
+  if ( file.mimetype == 'image/jpeg' || file.mimetype == 'image/png' ) {
+    cb( null, true );
+  } else {
+    cb( 'Failed: format not supported' );
+  }
+}
+
+// set multer config
+let upload = multer( {
+  storage: storage,
+  fileFilter: filter
+}).single( 'upload' );
+
+/* ===============================
+  ROUTE
+ ============================== */
+
+// route for file upload
+app.post( '/uploads', ( req, res ) => {
+  upload( req, res, err => {
+    if ( err ) {
+      console.log( err )
+      res.status(400).json( {message: err} );
+    } else {
+      res.status(200).json( {
+        file: req.protocol + '://' + req.get('host') + '/images/' + req.file.filename
+      } )
+    }
+  })
+})
+
+app.get( '/images', ( req, res ) => {
+  let file_path = req.protocol + '://' + req.get('host') + '/images/';
+  let files = fs.readdirSync( './images/' );
+  files = files
+          .filter( junk.not ) // remove .DS_STORE etc
+          .map( f => file_path + f ); // map with url path
+  res.json( files );
+});
+
+// general route
+app.get( '/', ( req, res ) => {
+  res.sendFile( __dirname + '/index.html' );
+})
+
+var server = app.listen( 8000, _ => {
+  console.log( 'server started. listening to 8000' );
+})