Upgrading to version 2

The new version 2 brings some new features and a simplified api.

All the previous file configuration functions like identifier, metadata, filename, chunkSize and root were removed in favor of a single function named file.

Unlike the previous versions no callbacks are supported in the new configuration function, it is invoked with only the req and file parameters. If you need to do some asynchronous work you have to return promises.

The dependency on gridfs-stream was removed. The reason is that the module is a nice wrapper around GridStore but this feature has been deprecated since mongodb 2.2. If you still need an old mongodb version for some reason this is not a problem since this plugin fallback to GridStore in case GridFSBucket is not present dealing with the differences internally.

Another feature of using gridfs-stream was the ability to reuse the connection to the database. This is still possible but using the db object directly. This allows you to deal only with the familiar mongodb objects instead of forcing you to learn a new api to deal with GridFs and use the new and improved GridFSBucket class.

The grid property of uploaded files was removed and all it's properties were merged with the file object. This removes the need for deep property lookups to access file information.

Logging configurations were removed in an effort to make the api as simple as possible. If you are looking for a way to debug your files use events instead.