I am building a web application with node.js, express.js and handlebars. I have the web app working and now I want to turn it into a PWA, so I wrote the manifest.json like this:
{
"name": "Talleres Online",
"short_name": "Talleres Online",
"start_url": "./?utm_source=web_app_manifest",
"display": "standalone",
"background_color": "#44d1c8",
"theme_color": "#55bddc",
"orientation": "portrait",
"description": "Lleva el control de tu taller a donde vayas, con Talleres Online puedes gestionar el funcionamiento de tu taller mecánico ¡desde cualquier dispositivo!",
"lang": "es-MX",
"icons": [{
"src": "icons/icon-32x32.png",
"sizes": "32x32",
"type": "image/png"
}, {
"src": "icons/icon-64x64.png",
"sizes": "64x64",
"type": "image/png"
}, {
"src": "icons/icon-128x128.png",
"sizes": "128x128",
"type": "image/png"
}, {
"src": "icons/icon-144x144.png",
"sizes": "144x144",
"type": "image/png"
}, {
"src": "icons/icon-152x152.png",
"sizes": "152x152",
"type": "image/png"
}, {
"src": "icons/icon-192x192.png",
"sizes": "192x192",
"type": "image/png"
}, {
"src": "icons/icon-256x256.png",
"sizes": "256x256",
"type": "image/png"
}, {
"src": "icons/icon-512x512.png",
"sizes": "512x512",
"type": "image/png"
}, {
"src": "icons/icon-1024x1024.png",
"sizes": "1024x1024",
"type": "image/png"
}]
}
and when I try to look up the manifest info at devtools it seems like there is no manifest.json, looking at the console it says this errors:
Failed to load resource: the server responded with a status of 404 (Not Found) manifest.json:1
Manifest: Line: 1, column: 1, Syntax error. manifest.json:1
GET http://localhost:3000/manifest.json 404 (Not Found) manifest.json:1
Manifest: Line: 1, column: 1, Syntax error.
With handlebars, I have a main.hbs file that has the head tag of the HTML and which body tag refers to other .hbs files to build the site, in this main.hbs file is where I put the meta tag that refers to the manifest.json.
I have put the manifest.json in the root of the app (just at the side of node_modules folder), in the /src folder and the /public folder, and none of them worked, I also connected a route for the /manifest.json request to the manifest.json file but it just changed the error from a 404 to a 500.
Any help, please? Thank you very much, sorry for the long post and the bad English.
const express = require('express');
const morgan = require('morgan');
const exphbs = require('express-handlebars');
const path = require('path');
const flash = require('connect-flash');
const session = require('express-session');
const MySqlStore = require('express-mysql-session');
const passport = require('passport');
const { database } = require('./keys');
//Inicializaciones
const app = express();
require('./lib/passport');
//Configuraciones
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.engine('.hbs', exphbs({
defaultLayout: 'main',
layoutsDir: path.join(app.get('views'), 'layouts'),
partialsDir: path.join(app.get('views'), 'partials'),
extname: '.hbs',
helpers: require('./lib/handlebars')
}));
app.set('view engine', '.hbs');
//Middlewares
app.use(session({
secret: 'carhelpmysqlsession',
resave: 'false',
saveUninitialized: 'false',
store: new MySqlStore(database)
}));
app.use(flash());
app.use(morgan('dev'));
app.use(express.urlencoded({extends: false}));
app.use(express.json());
app.use(passport.initialize());
app.use(passport.session());
//Variables Globales
app.use((req, res, next) => {
app.locals.success = req.flash('success');
app.locals.message = req.flash('message');
app.locals.user = req.user;
next();
});
//Rutas
app.use(require('./routes/index.js'));
app.use(require('./routes/authentication.js'));
app.use(require('./routes/carhelp.js'));
app.use(require('./routes/estados.js'));
// Public
app.use(express.static(path.join(__dirname, 'public')));
//Inicializar Servidor
app.listen(app.get('port'), () => {
console.log('Server on port', app.get('port'));
});
The question is solved, but here is my express configuration if anyone else have the same problem can solve it easily.
