API Gateway with Ocelot - Beginner-Friendly Microservices Orchestration

Welcome to the API Gateway! This is a beginner-friendly, lightweight API Gateway built using Ocelot in ASP.NET Core, designed to orchestrate microservices for authentication and CRUD operations. It serves as a single entry point for your applications, securely routing requests to downstream services while enforcing JWT-based authentication. Perfect for developers new to microservices or those looking to learn, this project offers an easy-to-understand setup with scalability and security in mind.

✨ Why This works

• Beginner-Friendly: Simple setup and clear documentation for learning microservices.
• Microservices Ready: Seamlessly routes to Auth and CRUD services.
• Secure by Design: Integrates JWT authentication with customizable validation.
• Scalable Architecture: Supports load balancing and easy extension for more services.
• Open Source: Contribute, fork, and enhance this gateway for your needs!

🚀 Features

• Routes client requests to microservices (e.g., /auth/* to Auth, /api/* to CRUD).
• Validates JWT tokens for protected endpoints (e.g., /api/books).
• Configurable via ocelot.json for dynamic routing and HTTPS support.
• Built with ASP.NET Core for high performance and cross-platform compatibility.
• Includes logging for debugging and monitoring.

🛠️ Prerequisites

• .NET 9 SDK (or your version)
• Visual Studio 2022 (or code editor with .NET support)
• Auth Service and CRUD Service running
• Postman or similar for API testing

📋 Installation

1. Clone the Repository

   git clone https://github.com/sivavithu/Api-GateWay-MicroServices.git
   cd ApiGateway

2. Configure Secrets

   The application requires JWT configuration. Never commit secrets to git!

   For local development, use .NET User Secrets:

   cd ApiGateway
   dotnet user-secrets set "AppSettings:Key" "REPLACE_WITH_YOUR_JWT_SECRET_KEY_MINIMUM_32_CHARACTERS"
   dotnet user-secrets set "AppSettings:issuer" "REPLACE_WITH_YOUR_ISSUER"
   dotnet user-secrets set "AppSettings:Audience" "REPLACE_WITH_YOUR_AUDIENCE"

   📖 See SECRETS.md for complete configuration guide including production deployment.

3. Build and Run

   dotnet build
   dotnet run