15 lines
678 B
TypeScript
15 lines
678 B
TypeScript
import { ProxyAgent, fetch as undiciFetch } from "undici";
|
|
import { wrapFetchWithAbortSignal } from "../infra/fetch.js";
|
|
|
|
export function makeProxyFetch(proxyUrl: string): typeof fetch {
|
|
const agent = new ProxyAgent(proxyUrl);
|
|
// undici's fetch is runtime-compatible with global fetch but the types diverge
|
|
// on stream/body internals. Single cast at the boundary keeps the rest type-safe.
|
|
const fetcher = ((input: RequestInfo | URL, init?: RequestInit) =>
|
|
undiciFetch(input as string | URL, {
|
|
...(init as Record<string, unknown>),
|
|
dispatcher: agent,
|
|
}) as unknown as Promise<Response>) as typeof fetch;
|
|
return wrapFetchWithAbortSignal(fetcher);
|
|
}
|