Function requireString

electron/services/channels-api.ts:161–166

(payload: unknown, key: string)

]);

function requireString(payload: unknown, key: string): string {
  if (!isRecord(payload) || typeof payload[key] !== 'string' || !payload[key].trim()) {
    throw new Error(`${key} is required`);
  }
  return payload[key].trim();
}

function optionalString(payload: unknown, key: string): string | undefined {
  if (!isRecord(payload) || typeof payload[key] !== 'string') return undefined;