Generated functions only support one of the major content-types per enpoint.

[ehvattum]

Given the api spec at https://gist.github.com/ehvattum/e7fdc53bda8a3d03556c0c649cdef7c9,

Oazapftz will generate an api client that looks like:

export function getPdfOrJson(opts?: Oazapfts.RequestOpts) {
    return oazapfts.fetchJson<{
        status: 200;
        data: Blob;
    } | {
        status: 404;
        data: {
            "error-message"?: string;
        };
    }>("/pdf-or-json", {
        ...opts
    });
}

It will as shown above select the fetchJson function as the wrapper. and that wrapper has poor handling if a Blob is ever returned.

This seems like a systematic bug, where the fetch-wrapper selected tests for JSON compatibility in any of the content-types for any of the response objects defined for an endpoint.
The bug manifests in https://github.com/oazapfts/oazapfts/blob/main/src/codegen/generate.ts#L689, where it selects the response type.

Ideally, the generated code should be wrapped with code that can handle all defined content types, and not default to the JSON compatible one as long as any response is JSON compatible.