Basic MongoDB CRUD operations and Unit testing with mongoose and mocha

Description

A test driven experience on MongoDB CURD operations using mongoose and mocha.

A good walk through of core fundamentals of MongoDB

• Data Modelling and schema designs
• Handling Relational Data
• Handling Big collections with pagination

Set Up

Clone and install:

git clone https://github.com/hemanth09/mongodb-curd-operations-and-unit-testing-with-mongoose-mocha.git
cd mongodb-curd-operations-and-unit-testing-with-mongoose-mocha
npm/yarn install

These packages will be installed

• Mongoose is a library which helps to modify the database.
• Mocha testing framework is popular for testing Nodejs and we are going to test create, read, update and delete operations on our MongoDB database.

Running the Application

Run it using:

npm run test

Before that you have to start MongoDb and connect to it. I am assuming you have MongoDB already installed on your computer. We will start the daemon specifying the location of the database.

mongod --dbpath=/User/username/data/db

If not installed follow the below link to install mongodb

• Installing Mongo
• Robo 3T You can install Robo 3T which gives a good user interface to manage your MongoDB database.

Project Structure

.
├── src                     # Src folder
        └── user                   # user schema to create a user
├── test                    # Test folder
        ├── create_test             # creating a user record
        ├── delete_test             # deleting a user record
        ├── reading_test            # Reading a user record
        └── update_test             # Updating a user record

Example Schema design approach for associating blogPosts and comments to User

• test/association_test
• test/middleware_test

Handling large data collections by pagination

• test/pagination_test