Add language routing

server/boot/z-lang-redirect.js

@@ -0,0 +1,27 @@
+import supportedLanguages from '../../common/utils/supported-languages';
+import passThroughs from '../utils/lang-passthrough-urls';
+// import debug from 'debug';
+
+// const log = debug('fcc:controller:lang-redirect');
+const toLowerCase = String.prototype.toLowerCase;
+
+export default function redirectLang(app) {
+  app.all('*', function(req, res, next) {
+    const { url, path } = req;
+    const langCode = toLowerCase.call(url.split('/')[1]);
+
+    if (passThroughs[langCode]) {
+      return next();
+    }
+
+    if (supportedLanguages[langCode]) {
+      req.flash('errors', {
+        msg: `404: We couldn't find path ${ path }`
+      });
+      return res.redirect('/map');
+    }
+
+    // language aware redirect
+    return res.redirect(url);
+  });
+}