[Question] how to pass File variable into request originating from server

[jezzzm]

Context: I'm using Remix to send gql mutations to separate backend service.

Workflow:

1. standard form submission (multipart) from frontend to Remix backend action.
2. form is parsed with remix helper
3. variables passed to graphql request
4. I can see that the body is successfully transformed to new formdata conforming to the graphql upload spec
5. other backend service responds with error POST body missing, invalid Content-Type, or JSON object has no keys.

Inspecting the headers just before it is sent off suggests that multipart/form-data boundary=XYZ content type header is not being set -- in fact there is no content type specified at all

I'm not sure if I'm doing something wrong or if this is a limitation of the library at the moment?

any help is much appreciated!
Cheers

[NormySan]

I'm having the same problem, it does not look like a content-type header is being set for some reason.

Edit: Looks like this is an issue with the "cross-fetch" package being used by default. I changed to using "@remix-run/web-fetch" instead and everything works as expected now.

[jasonkuhrt]

#500

[onionhammer]

@jasonkuhrt an open issue for tracking this should be added to this repo for multipart file uploads unless you are literally against adding it back ever

[jasonkuhrt]

I'd like to see it realized as an extension to an extensible core, rather than anything hardcoded.

[onionhammer]

I'd like to see it realized as an extension to an extensible core, rather than anything hardcoded.

Maybe a help wanted tagged issue? Someone could cross reference it

[jasonkuhrt]

#638