ReferenceError saving data to mongodb using mongoose in node.js

Question

I'm trying to save to a user collection in mongodb using mongoose and I'm getting the following

Error: ReferenceError: Cannot access 'user' before initialization.

const user = mongoose.model("users");

try {
        const user = await new user({
          googleId: profile.id,
          name: profile.displayName,
          email: profile.emails[0].values
        }).save();

        done(null, user);
      } catch (err) {
        console.log("error " + err);
      }
    }

Here is my user.js file:

 const mongoose = require("mongoose");
 const { Schema } = mongoose;

 const userSchema = new Schema({
     googleId: String,
     name: String,
     email: String
 });

 mongoose.model("users", userSchema);

In your first code snippet, you need to import the users object form user.js model file. Can you please share the whole codebase of the first code snippet and also the folder structure? — Shams Nahid
– Shams Nahid, Commented Jan 17, 2020 at 5:07

pkoulianos · Accepted Answer · 2020-01-17 17:10:57Z

1

You have to export your model schema : user.js

let mongoose = require("mongoose");

// User Schema
let userSchema  = mongoose.Schema({
     googleId: String,
     name: String,
     email: String
});

let User = module.exports = mongoose.model("users", userSchema);

index.js

// User model must be in same directory
const User = mongoose.model("users");

const user = new User();
//add model proporties
user.googleId = profile.id;
user.name = profile.displayName;
user.email = profile.emails[0].values;
//save user to db
user.save(function (err, data) {
    if (err) {
      console.log(err);
      res.send(err.message);
      return;
    }
    res.send('success');
    return;
});

edited Jan 17, 2020 at 17:10

answered Jan 17, 2020 at 6:04

pkoulianos

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1 Comment

pkoulianos Over a year ago

I had a small typo at my code snippet , try again if you like.

whoami - fakeFaceTrueSoul · Accepted Answer · 2020-01-17 19:19:43Z

0

Thanks for your help I got the following solution from two users on discord: @Lumeey & @Korbook:

model user.js was changed to the following :

const mongoose = require("mongoose");
const { Schema } = mongoose;

const userSchema = new Schema({
  googleId: String,
  name: String,
  email: String
 });

module.exports = mongoose.model("Users", userSchema);

In my passport.js :

const User = require("../models/user");

try {
    const user = await User.create({
     googleId: profile.id,
     name: profile.displayName,
     email: profile.emails[0].value
   });

   done(null, user);
} catch (err) {
   console.log("error " + err);

}

edited Jan 17, 2020 at 19:19

whoami - fakeFaceTrueSoul

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answered Jan 17, 2020 at 16:22

DZarrillo

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