I'm trying to do a user registration with a Node js app and MongoDB but I have this error:

var UtenteSchema = Scheme({           
TypeError: Scheme is not a function

There's my model utente.js

const { Mongoose } = require("mongoose");
const mongoose = require("./database");

const Utente = mongoose.model("Utente", new Mongoose.Schema({
    email: String,
    nome: String,
    cognome: String,
    password: String,
    admin: String,
  })
);

module.exports = Utente;

and there's my database.js

var mongoose = require('mongoose');

mongoose.connect("mongodb srv://db:[email protected]/?retryWrites=true&w=majority", {useNewUrlParser: true});

var conn = mongoose.connection;

conn.on('connected', function() {
    console.log('Database connesso');
});
conn.on('disconnected',function(){
    console.log('Database disconnesso');
})
conn.on('Errore', console.error.bind(console, 'Errore di connessione:'));
module.exports = conn;

I'm trying to do a save query to my mongodb atlas online database.

CodePudding user response：

Try the below code snippet

const mongoose = require("mongoose");
const Schema = mongoose.Schema;

const Utente = mongoose.model("Utente", new Schema({
    email: String,
    nome: String,
    cognome: String,
    password: String,
    admin: String,
  })
);

module.exports = Utente;

The difference here is we call .Schema and .model from the default import mongoose

CodePudding user response：

you have exported wrong variable in database.js file

it should be the mongoose instance, e.g:

module.exports = mongoose

What you have is module.exports = conn;. Meaning the connection variable does not have .Schema in it, or is not a function as the log stating

CodePudding user response：

You only need to import mongoose library to create a schema. Your database package is not required to create a schema.

In your utente.js paste the below code.

const mongoose = require("mongoose");

const UtenteSchema = mongoose.Schema(
  {
    email: String,
    nome: String,
    cognome: String,
    password: String,
    admin: String,
  }
);

module.exports = mongoose.model("Utente", UtenteSchema);