Mongoose ODM setup in Express - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import Mongoose in an Express app.

Express

const mongoose = require('[1]');

Drag options to blanks, or click blank then click option'

Amongoose

Bexpress

Cmongodb

Dbody-parser

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'express' instead of 'mongoose' in require.

Using 'mongodb' which is the native driver, not Mongoose.

You import Mongoose by requiring the 'mongoose' package. This lets you use Mongoose features in your app.

2fill in blank

medium

Complete the code to connect Mongoose to a MongoDB database.

Express

mongoose.[1]('mongodb://localhost:27017/mydb');

Drag options to blanks, or click blank then click option'

AcreateConnection

Bconnect

Copen

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using createConnection instead of connect.

Using non-existent methods like open or start.

The connect method is used to connect Mongoose to the MongoDB database.

3fill in blank

hard

Fix the error in defining a Mongoose schema.

Express

const userSchema = new mongoose.Schema({ name: [1] });

Drag options to blanks, or click blank then click option'

A{ type: }

Btype: String

CString

D{ type: String }

Attempts:

3 left

💡 Hint

Common Mistakes

Using just String without { type: String }.

Leaving type empty or incomplete.

Schema fields must be defined as objects with a type property specifying the data type.

4fill in blank

hard

Fill both blanks to create a Mongoose model and export it.

Express

const [1] = mongoose.model('User', [2]);
module.exports = [1];

Drag options to blanks, or click blank then click option'

AUser

BuserSchema

CUserSchema

DuserModel

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing model name with schema variable.

Exporting the schema instead of the model.

The model variable is conventionally named User and the schema variable is userSchema. Export the model, not the schema.

5fill in blank

hard

Fill all three blanks to define a schema with a required email field and create a model.

Express

const [1] = new mongoose.Schema({
  email: { type: String, [2]: true }
});
const [3] = mongoose.model('Contact', [1]);

Drag options to blanks, or click blank then click option'

AcontactSchema

Brequired

CContact

DemailSchema

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable names for schema or model.

Using require instead of required.

The schema variable is contactSchema. The field option to make a field mandatory is required. The model name is Contact.