38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
/**
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* sets request locale
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*
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* @param localization
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* @returns {Function}
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*/
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export default function localizationMiddleware(localization) {
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const middleware = (req, res, next) => {
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if (localization) {
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const validLocales = [...localization.locales, 'all'];
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const validFallbackLocales = [...localization.locales, 'null'];
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let requestedLocale = req.query.locale || localization.defaultLocale;
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let requestedFallbackLocale = req.query['fallback-locale'] || localization.defaultLocale;
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if (req.body) {
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if (req.body.locale) requestedLocale = req.body.locale;
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if (req.body['fallback-locale']) requestedFallbackLocale = req.body['fallback-locale'];
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}
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if (requestedFallbackLocale === 'none') requestedFallbackLocale = 'null';
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if (requestedLocale === '*' || requestedLocale === 'all') requestedLocale = 'all';
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if (validLocales.find((locale) => locale === requestedLocale)) {
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req.locale = requestedLocale;
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}
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if (validFallbackLocales.find((locale) => locale === requestedFallbackLocale)) {
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req.fallbackLocale = requestedFallbackLocale;
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}
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}
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return next();
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};
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return middleware;
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}
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