Support multipart/form-data for file uploads

[itsgreggreg]

https://hexdocs.pm/absinthe/file-uploads.html

there's currently no way to upload a file without encoding it as a string.

[itsgreggreg]

I just realized that being able to even do this relies on a native extension I've been using for handling file blobs.

In any case if 0.19.0 🙏 supports file refs / blobs we'll need multipart post bodies to support file uploads.

[dillonkearns]

Hey @itsgreggreg, interesting I didn't know that GraphQL supported that. Can we close this for now and revisit it once Elm has support for it? Also, once we revisit it it would be helpful to see some Elm code to demonstrate how you're doing that so I can wrap my head around it a little better. Thanks!

[itsgreggreg]

sounds good to me!

[xtian]

Hey @itsgreggreg, interesting I didn't know that GraphQL supported that.

Just FYI: I believe this functionality is an unofficial extension to GraphQL provided by Absinthe.