Gridfs pdf download not supported file type

Learn more. Asked 6 years, 5 months ago. Active 6 years, 5 months ago. Viewed 2k times. ObjectId req. Improve this question. Aidin Aidin 2, 21 21 silver badges 25 25 bronze badges. This is very surprising to see no activities in here even with a bounty — Aidin.

Write Gridfs data in a file and see if you can open them? Same issue for me. I used mongofiles and checked the md5sum and I can confirm that they are getting uploaded perfectly into GridFS.

But through browser, it is getting corrupted by some means which I can't figure out. Add a comment. Active Oldest Votes. Sounds like the issue is with MIME type. Improve this answer. To proceed, select your browser from the list below and follow the instructions. To change the name of a PDF file you want to download, right-click the download link and select Save As. However, downloading a PDF is still possible.

By default, Google Chrome opens a PDF file in the browser window instead of saving it to the downloads folder. GridFS uses two collections to store files. One collection stores the file chunks, and the other stores file metadata. The section GridFS Collections describes each collection in detail. When you query GridFS for a file, the driver will reassemble the chunks as needed. You can perform range queries on files stored through GridFS. You can also access information from arbitrary sections of files, such as to "skip" to the middle of a video or audio file.

GridFS is useful not only for storing files that exceed 16 MB but also for storing any files for which you want access without having to load the entire file into memory. In some situations, storing large files may be more efficient in a MongoDB database than on a system-level filesystem. Do not use GridFS if you need to update the content of the entire file atomically.

As an alternative you can store multiple versions of each file and specify the current version of the file in the metadata. You can update the metadata field that indicates "latest" status in an atomic update after uploading the new version of the file, and later remove previous versions if needed. You may use the BinData data type to store the binary data.

See your drivers documentation for details on using BinData. To store and retrieve files using GridFS , use either of the following:. GridFS stores files in two collections:. GridFS places the collections in a common bucket by prefixing each with the bucket name. By default, GridFS uses two collections with a bucket named fs :. You can choose a different bucket name, as well as create multiple buckets in a single database.