Invalid Namespace specified Mongoose save collection - node.js

Question

I am creating an application using expressjs, mongoose and ejs template engine.
I am facing an below mentioned issue while saving collection:
{"message":"Invalid namespace specified 'ecommerce\";.roleresources'"}
This is my entry script app.js file:
const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const expressLayout = require('express-ejs-layouts');
const config = require('./config');
const adminRoutes = require('./routes/admin');
const app = express();
// set the view engine to ejs
app.set('view engine', 'ejs');
app.set('views', 'views');
app.set('layout', 'layout/shop');
app.set("layout extractScripts", true)
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressLayout);
app.use(express.static(path.join(__dirname, 'public')));
app.use('/admin', adminRoutes);
mongoose.Promise = global.Promise;
mongoose
.connect(config.mongodb_uri, { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex:true } )
.then(result => {
console.log(result);
app.listen(config.port || 3000);
})
.catch(err => {
process.exit();
});
These are file config.js file:
const dotenv = require('dotenv');
dotenv.config();
module.exports = {
port:process.env.PORT,
mongodb_uri: process.env.MONGODB_URI
}
and this is my .env file:
PORT=3000
MONGODB_URI="mongodb://localhost:27017/ecommerce";
and model file is:
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const roleResourceSchema = Schema({
name:{
type:String,
required:true
},
code:{
type:String,
required:true
},
url:{
type:String,
required:true
}
});
roleResourceSchema.index({name:1, code:1,url:1}, {unique:true});
module.exports = mongoose.model('RoleResource', roleResourceSchema);
and lastly my controller:
const RoleResource = require('../model/roleResource');
exports.getLogin = (req, res, next) => {
const resource = new RoleResource({
name:"All",
code:"all",
url:"*",
});
resource.save()
.then(data => {
res.send(data);
}).catch(err => {
res.status(500).send({
message: err.message
});
});
};
and if hard coded the mongodb url in my app.js then it's start working (modified app.js for working mongoose save)
const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const expressLayout = require('express-ejs-layouts');
const config = require('./config');
const adminRoutes = require('./routes/admin');
const app = express();
// set the view engine to ejs
app.set('view engine', 'ejs');
app.set('views', 'views');
app.set('layout', 'layout/shop');
app.set("layout extractScripts", true)
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressLayout);
app.use(express.static(path.join(__dirname, 'public')));
app.use('/admin', adminRoutes);
mongoose.Promise = global.Promise;
mongoose
.connect("mongodb://localhost:27017/ecommerce", { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex:true } )
.then(result => {
console.log(result);
app.listen(config.port || 3000);
})
.catch(err => {
process.exit();
});
How can I dynamically use the mongo db url from my .env file

Answer 1

It took me a while to resolved mine, but i finally did.
In you .env file, remove the quotes in MONGODB_URI.
Check sample below
PORT=3000
MONGODB_URI=mongodb://localhost:27017/ecommerce

Answer 2

The reason you are having the error:
It's simply because of the way you are writing the MongoDB URI in the .env file i.e MONGODB_URI="mongodb://localhost:27017/ecommerce";
The dotEnv package would parse the value for MONGODB_URI as mongodb://localhost:27017/ecommerce";, notice the double-quote(") and the semi-colon(;) at the end, they are not supposed to be there and that is what is causing the error.
The fix:
All you need to do is remove the semi-colon and everything should be fine: MONGODB_URI="mongodb://localhost:27017/ecommerce"