The .files collection always points to the default 'fs' collection

[lammas]

The 'root' option has no effect when using gfs.files.find().

I am not sure if this is by design or a bug. For now it helps to call gfs.collection('myCollectionName') before attempting any find queries. If this is by design the documentation should mention this.

PS. Sorry for multiple edits and confusion.

[tomnewport]

I have the same problem - my files are stored in test_files.files and test_files.chunks.

[tilleps]

I had the same issue. The root option does not appear to work for gfs.createReadStream(). I used gfs.collection() as a workaround.

Example:

var Grid = require('gridfs-stream');

var gfs = Grid(conn.db);
gfs.collection('myCollectionName');

var readStream = gfs.createReadStream();

As a side note, looks like gfs.collection() does NOT work for createWriteStream() and needs the root option parameter to be defined.

var writeStream = gfs.createWriteStream({
   "root": "myCollectionName",
});

[Aeonrush]

Hi everyone You can look here #102 maybe it will be useful for you

[vijayakumar-psg587]

Since the use of createReadStream and createWriteStream is deprecated, new gridfs stream should be created with a GridFSBucket. Here is an example:

const gfs = new mongoose.mongo.GridFSBucket(await mongoose.connection.useDb(MONGO_FILE_DB).db, {
            bucketName: MONGO_FILE_COLLECTION,
            readPreference: 'primary',
            writeConcern: {w: 1, j: true},
        });

Here I have created and used a different DB and bucketName. You can declare this once and use it elsewhere where files are to be stored and retrieved

You can write to gridfs bukcet using the GridFSAPI of mongodb 3.5. GridfsStream adopted the new API and created whole new bunch of interfaces to interact NOte: I used pump module to make sure that pipe streams are handled appropriately for closures

pump(file, gfs.openUploadStream( fileName, {
            chunkSizeBytes: 5724,
            metadata: {
                desc: 'test file uploaded',
                mimetype: mimetype,
                encoding: encoding
            },
        }));

Now, there is no need to use 'root' as in deprecated interfaces