Support file uploads

[alistair]

closes #572

[jeremydmiller]

Hey @alistair, the code looks good as far as I can tell, but would you add an end to end test to that somehow?

[Xzelsius]

@alistair How is this supposed to work?

So far, I had to use MVC controllers for file uploads instead of Wolverine endpoints.
I now tried to migrate them to Wolverine but I can't figure out on how to make them working :D

Must IFormFile be an endpoint argument or can it be inside the request model?

In our case we used this in MVC

public record CreateAttachmentRequest(Guid AttachmentFolderId, IFormFile Attachment);

and marked the controller action with [Consumes("multipart/form-data")].
This way, our Swagger looked like this

But if I use the same model with Wolverine, it does not work.

If I specify IFormFile as endpoint parameter (instead of inside the model) my Swagger forces me to decide between uploading a file body or JSON payload. Which is wrong in both cases.

or

And either way Wolverine won't accept the same request that our frontend sends.
Would be nice if you could help me out :)

[nkosi23]

@Xzelsius Have you tried adding the [FromForm] attribute to your IFormFile parameter (passed as a method argument, the second approach you mention)