How can I useFetcher to retrieve binary data?

[connor4312]

I have a large data structure that one of my API routes is packing into a binary response. On that response, in spite of setting its Content-Type to application/octet-stream, it gets passed as a string in the fetcher data.

Is there a way to get around this and access it as an arrayBuffer or uint8array?

[kiliman]

Just like loaders and actions, useFetcher expects responses to be JSON format.

If you need non-JSON data, you will need to use the standard fetch function.

It would be nice if Remix honored the content-type.

[sergiodxa]

I was thinking that too, it would be useful if useFetcher at least could check the Content-Type and decide how to read the response based on that, use response.json() only for JSON response and other formats for the rest, and maybe use response.blob() or response.arrayBuffer() from other content types.

[connor4312]

Definitely agreed, content-type matching would be perfect.

[R3al0n]

Is there any update on this? or is there any code example available for binary data use case?

[blissito]

I use fetch. And, there is the
unstable_parseMultipartFormData too, which gives you the arrayBuffer