在Golang中使用griddfs从Mongodb下载文件

I have already uploaded my files using gridfs in go lang. But having problems in downloading it...I dont know how to read the file in the MongoDB and show it in browser and once the user clicks it i want to download it to the users computer Please help me..Thanks

I have found how to do it. All we have do is read from the GridFS and write it in the response writer and set the content disposition to attachment or inline and set the content type and length. Thanks for the effort of others...