Node.js with MongoDB, REST APIs, and GraphQL

Welcome to the Node.js repository that showcases the integration of Node.js with MongoDB, REST APIs, test cases, file systems, GraphQL, and more. This repository provides comprehensive examples and code snippets to help you understand and implement these technologies in your Node.js applications.

Getting Started

To begin exploring the code and examples, ensure that you have Node.js installed on your system. If not, you can download and install it from Node.js official website. Once you have Node.js installed, follow these steps:

git clone https://github.com/sumansingh226/Nodejs.git
cd Nodejs
#Installation
Install the required dependencies by running the following command:
npm install

#Usage
To run the application, use the following command:
npm start

# Node.js Topics

## 1. Node.js Fundamentals
   - Event Loop
   - Modules and Packages
   - Asynchronous Programming
   
## 2. Express.js
   - Routing
   - Middleware
   - Template Engines

## 3. Error Handling
   - Try-Catch Blocks
   - Custom Error Handling Middleware

## 4. File Handling
   - Reading and Writing Files
   - Working with Directories
   - Streams
   
## 5. Testing
   - Jest
   - Mocha
   - Chai

## 6. GraphQL APIs
   - Schema Definition
   - Queries and Mutations
   - Resolvers

## 7. SQL
   - Connecting to a Database
   - Querying Data
   - Transactions

## 8. MongoDB
   - CRUD Operations
   - Indexing
   - Aggregation Framework

## 9. Authentication
   - Passport.js
   - JSON Web Tokens (JWT)
   - OAuth

## 10. Filesystem
   - fs Module
   - Path Module
   - File and Directory Operations

## 11. REST API
   - RESTful Principles
   - API Design Best Practices
   - Consuming RESTful APIs

## 12. Express.js Routing
   - Route Parameters
   - Route Handlers
   - Route Middleware