Backend API Development: REST, gRPC, and GraphQL for Microservices

Modern backend systems rely on more than just standard REST APIs. To build scalable microservices today, you must understand how to choose and implement the right communication pattern for the right job. This text-based course guides you from backend fundamentals to designing, securing, and documenting high-performance APIs for distributed architectures. What you'll learn: - Learn the foundational principles of Microservices Architecture (MSA) and API communication patterns. - Design and implement RESTful APIs using modern standards and contract-first OpenAPI documentation. - Build high-performance, low-latency internal communication channels using gRPC and Protocol Buffers. - Implement flexible, client-driven data queries with GraphQL schemas and resolvers. - Configure API Gateways to manage routing, rate limiting, and modern token-based authentication. - Apply essential security practices and performance optimization techniques to your backend services. You will start with the core concepts of backend communication before diving deep into hands-on code implementations for each API style. Through written explanations and practical exercises, you will learn how to coordinate these technologies within a cohesive microservices ecosystem. This course is designed for aspiring backend developers and software engineers looking to expand their API design skills. No prior experience with microservices is required, though a basic understanding of programming concepts is helpful. Read through the modules and start building modern, interconnected backend systems today.