hono/dist/helper/proxy/index.js

Web framework built on Web Standards

// src/helper/proxy/index.ts
var hopByHopHeaders = [
  "connection",
  "keep-alive",
  "proxy-authenticate",
  "proxy-authorization",
  "te",
  "trailers",
  "transfer-encoding"
];
var buildRequestInitFromRequest = (request) => {
  if (!request) {
    return {};
  }
  const headers = new Headers(request.headers);
  hopByHopHeaders.forEach((header) => {
    headers.delete(header);
  });
  return {
    method: request.method,
    body: request.body,
    duplex: request.body ? "half" : void 0,
    headers
  };
};
var proxy = async (input, proxyInit) => {
  const { raw, ...requestInit } = proxyInit ?? {};
  const req = new Request(
    input,
    {
      ...buildRequestInitFromRequest(raw),
      ...requestInit
    }
  );
  req.headers.delete("accept-encoding");
  const res = await fetch(req);
  const resHeaders = new Headers(res.headers);
  hopByHopHeaders.forEach((header) => {
    resHeaders.delete(header);
  });
  if (resHeaders.has("content-encoding")) {
    resHeaders.delete("content-encoding");
    resHeaders.delete("content-length");
  }
  return new Response(res.body, {
    ...res,
    headers: resHeaders
  });
};
export {
  proxy
};