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openai-adapters: allow overriding authorization header #8684

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28 changes: 28 additions & 0 deletions packages/openai-adapters/src/util.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -158,7 +158,35 @@ export function customFetch(
if (process.env.FEATURE_FLAG_DISABLE_CUSTOM_FETCH) {
return patchedFetch;
}

function letRequestOptionsOverrideAuthorizationHeader(init: any): any {
if (
!init ||
!init.headers ||
!requestOptions ||
!requestOptions.headers ||
(!requestOptions.headers["Authorization"] &&
!requestOptions.headers["authorization"])
) {
return init;
}

if (init.headers instanceof Headers) {
init.headers.delete("Authorization");
} else if (Array.isArray(init.headers)) {
init.headers = init.headers.filter(
(header: [string, string]) =>
(header[0] ?? "").toLowerCase() !== "authorization",
);
} else if (typeof init.headers === "object") {
delete init.headers["Authorization"];
delete init.headers["authorization"];
}
return init;
}

return (req: URL | string | Request, init?: any) => {
init = letRequestOptionsOverrideAuthorizationHeader(init);
if (typeof req === "string" || req instanceof URL) {
return fetchwithRequestOptions(req, init, requestOptions);
} else {
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