Contact Manager Contact Manager is a simple backend application for managing contacts. It allows users to store and manage their personal contacts.

Description The application is built using Node.js and Express, with MongoDB as the database. It provides API endpoints to create, read, update, and delete contacts. The application also includes user authentication features, with password hashing using bcrypt and token generation using JSON Web Tokens.

Installation Prerequisites Node.js MongoDB Steps Clone the repository:

bash

git clone [repository_url] cd contact-manager Install the dependencies:

bash

npm install Set up your environment variables. Create a .env file in the root directory and add the following:

env

MONGODB_URI=your_mongodb_connection_string ACCESS_TOKEN_SECRET=your_jwt_secret Start the application:

For development: bash

npm run dev

For production: bash

npm start