gridfs-stream

I'm trying to upload a file (an image), the upload is fine, the file is stored in Mongo and have the same content type and same size as the original file, then when I try to download it, the file is corrupted but keeps the same content type (if I upload a pdf, it is recognized as a pdf, if it is a png, it is also recognized, but I can't open them). I don't understand what is wrong with this, it is pretty simple and standard. For the upload from the client, I use angular ng-upload, for the download, it is a simple GET request to the route defined in the code. EDIT : The file is well uploaded on

I need save some files like: images,video,pdf... into mongodb, so i use gridfs-stream and express.js var file = req.files.file; req.pipe(gfs.createWriteStream({ filename:file.originalname, mode:"w", chunkSize:1024*4, content_type:file.mimetype, root:"fs" }) res.send(200); for testing i use postman and set an POST request this way: POST /fs/upload HTTP/1.1 Host: localhost:5000 Cache-Control: no-cache ----WebKitFormBoundaryE19zNvXGzXaLvS5C Content-Disposition: form-data; name="file"; filename="epic.png" Content-Type: image/png ----WebKitFormBoundaryE19zNvXGzXaLvS5C the problem is that this way