{"ast":null,"code":"export const lngFromReq = req => {\n  if (!req.i18n) {\n    return null;\n  }\n\n  const {\n    allLanguages,\n    defaultLanguage,\n    fallbackLng\n  } = req.i18n.options;\n  const fallback = fallbackLng || defaultLanguage;\n\n  if (!req.i18n.languages) {\n    return typeof fallback === 'string' ? fallback : null;\n  }\n\n  const language = req.i18n.languages.find(l => allLanguages.includes(l)) || fallback;\n\n  if (typeof language === 'string') {\n    return language;\n  }\n\n  return null;\n};","map":null,"metadata":{},"sourceType":"module"}