Function parseHeaderString

packages/graphiql-react/src/schema.tsx:399–411

(headersString?: string)

}

function parseHeaderString(headersString?: string) {
  let headers: Record<string, unknown> | null = null;
  let isValidJSON = true;

  try {
    if (headersString) {
      headers = JSON.parse(headersString);
    }
  } catch {
    isValidJSON = false;
  }
  return { headers, isValidJSON };
}