How to get a binary stream by GridFS ObjectId with Spring Data MongoDB

Question

I can\'t figure out how to stream a binary file from GridFS with spring-data-mongodb and its GridFSTemplate when I already have the right ObjectId.

Answer 1

Wrap the GridFSFile in a GridFsResource or use this

GridFSFile file = gridFsTemplate.findOne(Query.query(Criteria.where("_id").is(fileId)));
GridFsResource resource = gridFsTemplate.getResource(file);
return resource.getInputStream();