Manage redirection with node js

redirect-node.js

// exemple de base, à adapter à votre besoin
app.use((req, res, next) => {
   const originalUrl = req.originalUrl;
   if (originalUrl === '/' || originalUrl.slice(-1) !== '/') {
       return next()
   }
   const baseUrlWithoutTrailingSlashes = originalUrl.replace(/\/+$/, '');
   const hasTrailingSlashes = originalUrl !== baseUrlWithoutTrailingSlashes;
   if (hasTrailingSlashes) {
       const queryIndex = originalUrl.indexOf('?');
       let newUrl = baseUrlWithoutTrailingSlashes;
       if (queryIndex > -1) {
           newUrl += originalUrl.substring(queryIndex);
       }
       return res.redirect(301, newUrl);
   }
   next();
});