Class HeaderMap

js/bundle/src/encoder.ts:243–265

}

class HeaderMap extends Map<string, string> {
  constructor(status: number, headers: Headers) {
    super();
    if (status < 100 || status > 999) {
      throw new Error('Invalid status code');
    }

    this.set(':status', status.toString());
    for (const key of Object.keys(headers)) {
      this.set(key.toLowerCase(), headers[key]);
    }
  }

  toCBOR(): Uint8Array {
    // Convert keys and values to Uint8Array, as the CBOR representation of
    // header map is {bytestring => bytestring}.
    const m = new Map<Uint8Array, Uint8Array>();
    for (const [key, value] of this.entries()) {
      m.set(byteString(key), byteString(value));
    }
    return cborg.encode(m);
  }
}

// Throws an error if `urlString` is not a valid exchange URL, i.e. it must not
// have credentials (user:password@) or hash (#fragment).