Express.js modules problems
I have worked hard with Express.js modules. There was a lot of problems.
I18n tanslate module. It doesn’t configure with multiple language files. My project has this folder structure:
resources
— locales
— — en
— — — forms.json
— — lt
— — — forms.json
— — — alerts.json
And I had a problem with i18n, because it doesn’t work with this structure. I install i18next, but it crashed. An error was in wrong forms.json file format. I tried to fix it — checked this file with online checkers, remove-readd BOM, but I had no results. I couldn’t find a salution in google for this error. The error was showed by i18nFsBackend module. I came back to i18n module with a new hope to create multiple language files. But I failed. Then I removed i18next, i18nMiddleware and i18nFsBackend and them reinstalled.
And.. Amazing! It works! Why i18next works, i don’t know. Language file forms.json was good!
module.exports = (i18next, i18nMiddleware, i18nFsBackend) => {
return i18next
.use(i18nMiddleware.LanguageDetector)
.use(i18nFsBackend)
.init({
backend: {
// path where resources get loaded from
loadPath: ‘./resources/locales/{{lng}}/{{ns}}.json’,// path to post missing resources
addPath: ‘./resources/locales/{{lng}}/{{ns}}.missing.json’,// jsonIndent to use when storing json files
jsonIndent: 2
},
preload: [‘lt’, ‘en’],
ns: [‘forms’],
defaultNS: ‘forms’,
lowerCaseLng: true,
pageDefaultLanguage: ‘lt’,
load: ‘unspecific’,
fallbackLng: ‘lt’,
cookieName: ‘lng’,
useCookie: false,
fallbackToDefaultNS: true,
saveMissing: true,
debug: false,
detection: {
order: [‘querystring’, ‘cookie’],
lookupCookie: ‘language’,
lookupSession: ‘lng’,
lookupPath: ‘lng’,
}
}, (err, t) => {
if (err) return console.log(‘something went wrong loading’, err);
});
};
I installed nodemon for watch files changes. After change a file, nodemon restarts nodejs server.
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Csurf module for a validation token. I had error — csurf couldn’t post my form data. Error: invalid csrf token. I searched a salution for 4 days, but I didn’t find. I tried a lot of ways… Finaly in the fifth day I found salution! Problem is with nodemon aplication:
nodemon app.js — csrf invalid
node app.js — works
forever app.js — works
I don’t know, why does nodemon have problem with csurf.
For form parsing I changed body-parser to formidable module.
In route.js file end I created 404 error midleware.
app.use(function(req, res, next) {
res.status(404).render(‘404’);
});
And next I had new error: headers already sent. I changed route.js to simple routes, got a lot of information from Internet, but that didn’t work. Finaly formidable I changed to body-parser and this error gone! But this system have to work with form files. I installed express-busboy and removed body-parser module — system works good!
Node version was 8.1.4, and I tried to update. Node was installed as npm package, but now I tried update through nvm (manager). Node was in /usr/bin/npm… So I new Node version installed in /home/my_project catalog.
