make the node.js sample work on Windows

samples/Node.js/README.md

@@ -1,11 +1,11 @@
 # Sample code for Node.js
 
-This sample is written for [Node.js 0.6+](http://nodejs.org/) and requires [Express](http://expressjs.com/) to make the sample code cleaner.
+This sample is written for [Node.js](http://nodejs.org/) and requires [Express](http://expressjs.com/) to make the sample code cleaner.
 
 To install and run:
 
     cd samples/Node.js
-    npm install express
+    npm install
     node app.js
 
 Then browse to [localhost:3000](http://localhost:3000).

samples/Node.js/app.js

@@ -1,22 +1,24 @@
+process.env.TMPDIR = 'tmp'; // to avoid the EXDEV rename error, see http://stackoverflow.com/q/21071303/76173
+
 var express = require('express');
 var multipart = require('connect-multiparty');
 var multipartMiddleware = multipart();
-var flow = require('./flow-node.js')('tmp/');
+var flow = require('./flow-node.js')('tmp');
 var app = express();
 
 // Host most stuff in the public folder
 app.use(express.static(__dirname + '/public'));
 app.use(express.static(__dirname + '/../../src'));
 
 // Handle uploads through Flow.js
-app.post('/upload', multipartMiddleware, function(req, res){
-  flow.post(req, function(status, filename, original_filename, identifier){
-    console.log('POST', status, original_filename, identifier);
-    res.send(200, {
-      // NOTE: Uncomment this funciton to enable cross-domain request.
-      //'Access-Control-Allow-Origin': '*'
+app.post('/upload', multipartMiddleware, function(req, res) {
+    flow.post(req, function(status, filename, original_filename, identifier) {
+        console.log('POST', status, original_filename, identifier);
+        res.send(200, {
+            // NOTE: Uncomment this funciton to enable cross-domain request.
+            //'Access-Control-Allow-Origin': '*'
+        });
     });
-  });
 });
 
 // Handle cross-domain requests
@@ -31,15 +33,15 @@ app.post('/upload', multipartMiddleware, function(req, res){
 */
 
 // Handle status checks on chunks through Flow.js
-app.get('/upload', function(req, res){
-  flow.get(req, function(status, filename, original_filename, identifier){
-    console.log('GET', status);
-    res.send(200, (status == 'found' ? 200 : 404));
-  });
+app.get('/upload', function(req, res) {
+    flow.get(req, function(status, filename, original_filename, identifier) {
+        console.log('GET', status);
+        res.send(200, (status == 'found' ? 200 : 404));
+    });
 });
 
-app.get('/download/:identifier', function(req, res){
-	flow.write(req.params.identifier, res);
+app.get('/download/:identifier', function(req, res) {
+    flow.write(req.params.identifier, res);
 });
 
-app.listen(3000);
+app.listen(3000);