Returning a binary file from a custom route (not FileMiddeleware's public folder)

Question

I want to return a file via a route that I don't want public. My users will need to use a URL with a unique and one time code. Because of that I don't want to use the public folder via the FileMiddleware.

This is a binary executable, not a text file. I can grab the file as data with FileManager, but it seems like Future<Data> is not a valid return type for a route.

After searching StackOverflow, the only thing I've found is this reply to a similar question: How do I download a file and send a file using Vapor server side swift?

But that doesn't really fill in much on HOW to accomplish it.

score 2 · Accepted Answer · answered Jan 21 '20 at 18:58

2

router.get("customfile") { req -> Future<Response> in
    return try req.streamFile(at: "/path/to/file")
}

answered Jan 21 '20 at 18:58

imike

5,515
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Oh cool, so much simpler than I expected. I'll give it a try! – RogerTheShrubber Jan 21 '20 at 19:33
1

Works perfectly. Thanks! – RogerTheShrubber Jan 21 '20 at 20:31
What can I do to tell the client how big the file is? When downloading the client just shows how much has downloaded, but not a percentage since it doesn't know how big the file is. – RogerTheShrubber Jan 27 '20 at 09:46

score 0 · Answer 2 · answered Sep 13 '20 at 16:36

0

This works for me.

func routes(_ app: Application) throws {
  app.get("downloadthefile") { req -> Response in
    let filePath = "path/to/the/file"
    let result = req.fileio.streamFile(at: filePath)
    return result
  }
}

answered Sep 13 '20 at 16:36

zekel

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Returning a binary file from a custom route (not FileMiddeleware's public folder)

2 Answers2