Nodejs: iterate over req.files properties

Question

I'm quite new to nodejs and sometimes I come across difficulties :) So for example. I'm sending an image file via AJAX and recieve it successfully in my app. console.log(req.files) prints: ``` { img_1351078491675: { size: 354683, path: '/tmp/f29009b6dc914c2ab27e2c5fde13e7d8.jpg', name: 'nov10wallpaper-1_1600.jpg', type: 'image/jpeg', hash: false, lastModifiedDate: Wed Oct 24 2012 13: 36: 55 GMT + 0200(CEST), _writeStream: { path: '/tmp/f29009b6dc914c2ab27e2c5fde13e7d8.jpg', fd: 14, writable: false, flags: 'w', encoding: 'binary', mode: 438, bytesWritten: 354683, busy: false, _queue: [], _open: [Function], drainable: true }, length: [Getter], filename: [Getter], mime: [Getter] } } ``` Because the image has a timestamp I cannot access with req.files.img_. So I was using for(file in reg.files) to get it (forEach didn't work - no idea why. seems to be a normal hash/object). But now my problems actually start. How can I read out the attributes of that file? E.g. file.path doesn't work. It…

Accepted Answer

I believe `forEach()` is meant for arrays rather than objects, so that's probably why that didn't work.

If there is only (ever) one file, then:

```
var fileKey = Object.keys(req.files)[0];
var file = req.files[fileKey];
```

...or just:

```
var file = req.files[Object.keys(req.files)[0]];`
```

...will 'dig down one level' so you can do `file.path` or `file.type`. If there are (or might be) more than one:

```
var files = [];
var fileKeys = Object.keys(req.files);

fileKeys.forEach(function(key) {
    files.push(req.files[key]);
});
```

This will give you a list of files 'dug down one level', on which you can `forEach()`.

Hope that helps!

Nodejs: iterate over req.files properties

Solution

Problem