GridFS find file by _id download with the name of the file
I managed to solve my problem, to get the correct name of the file I had to set something in the response, this question on stackoverflow explains it further:
I came up then change my code a little to have it like this, here is the improved code:
var router = require('express').Router();var mongoose = require('mongoose');var conn = mongoose.connection;var Grid = require('gridfs-stream');Grid.mongo = mongoose.mongo;var gfs = Grid(conn.db);var fs = require('fs');router.post('/', function(req, res) { var dirname = require('path').dirname(__dirname); var filename = req.file.filename; var path = req.file.path; var type = req.file.mimetype; var read_stream = fs.createReadStream(dirname + '/' + path); var writestream = gfs.createWriteStream({ _id: filename, 'filename': req.file.originalname, mode: 'w', content_type: type }); read_stream.pipe(writestream); writestream.on('close', function (file) { res.status(200).json({'filename': filename}); });});router.get('/:id',function(req , res) { var file_id = req.params.id; gfs.files.find({_id: file_id}).toArray(function (err, files) { if (err) { res.json(err); } if (files.length > 0) { var mime = files[0].contentType; var filename = files[0].filename; res.set('Content-Type', mime); res.set('Content-Disposition', "inline; filename=" + filename); var read_stream = gfs.createReadStream({_id: file_id}); read_stream.pipe(res); } else { res.json('File Not Found'); } });});module.exports = router;I hope this provides some help to the ones who also get stuck because of the same reason and I want to thank the ones who read through the question before.