Enterprise API Gateway

A comprehensive, cloud-native API gateway solution designed for enterprise environments, providing advanced routing, authentication, rate limiting, and comprehensive observability features.

Overview

This project demonstrates the implementation of a production-ready API gateway that can handle enterprise-scale traffic while providing the security, observability, and developer experience that modern organizations require.

Key Features

• High Performance - Built on Envoy proxy for maximum throughput
• Cloud Native - Kubernetes-native deployment and configuration
• Advanced Routing - Path-based, header-based, and weighted routing
• Security First - OAuth2, JWT, mTLS, and custom authentication
• Observability - Comprehensive metrics, tracing, and logging
• Developer Experience - GraphQL schema stitching, API documentation

Architecture

The gateway consists of several key components working together:

1. Control Plane - Configuration management and service discovery
2. Data Plane - High-performance request processing via Envoy
3. Authentication Service - Centralized auth with pluggable providers
4. Rate Limiting Service - Distributed rate limiting with Redis
5. Observability Stack - Metrics, tracing, and log aggregation

Getting Started

This project is broken down into several parts that cover different aspects of building and deploying the API gateway:

1. Core Gateway Implementation - Basic routing and proxy functionality
2. Authentication & Authorization - Security layer implementation
3. Rate Limiting & Circuit Breaking - Reliability patterns
4. Observability & Monitoring - Metrics, tracing, and alerting
5. Deployment & Operations - Kubernetes deployment and scaling

Each part builds upon the previous ones, creating a complete, production-ready system.