Function headersToDict

packages/core/src/utils/request.ts:68–86

(
  reqHeaders: Record<string, string | string[] | undefined | number>,
)

 * Convert common request headers to a simple dictionary.
 */
export function headersToDict(
  reqHeaders: Record<string, string | string[] | undefined | number>,
): Record<string, string> {
  const headers: Record<string, string> = Object.create(null);

  try {
    Object.entries(reqHeaders).forEach(([key, value]) => {
      if (typeof value === 'string') {
        headers[key] = value;
      } else if (typeof value === 'number') {
        headers[key] = String(value);
      }
    });
  } catch {
    // just return the empty headers
  }

  return headers;
}

/**
 * Converts a `Request` object that implements the `Web Fetch API` (https://developer.mozilla.org/en-US/docs/Web/API/Headers) into the format that the `RequestData` integration understands.