Masterclass: API Development & Microservices Architecture

Design and construct secure, high-performance APIs and microservice ecosystems.

10 Weeks
Online / Offline
English & Tamil
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Course Overview

APIs are the nervous system of the digital economy, connecting mobile apps, web frontends, and external platforms to backend data. This masterclass elevates you from a basic backend developer to an API architect. You will design pristine RESTful interfaces, solve complex data-fetching problems using GraphQL, and build ultra-fast internal microservice communication networks using gRPC and Protocol Buffers. You'll also learn to orchestrate this ecosystem securely using API Gateways and OAuth 2.0.

Skills You Will Master

RESTful API Design GraphQL gRPC & Protobuf API Gateways OAuth 2.0 / JWT Service Discovery

Course Curriculum

1. Principles of API Design

  • The role of APIs in modern software
  • HTTP protocol deep dive (Methods, Status Codes)
  • Statelessness and caching
  • Designing intuitive URL structures

2. RESTful Architecture

  • Richardson Maturity Model
  • HATEOAS (Hypermedia as the Engine of Application State)
  • Versioning strategies (URL, Header, Query)
  • Handling pagination, filtering, and sorting

3. Introduction to GraphQL

  • Why GraphQL? (Over-fetching vs Under-fetching)
  • Schemas, Queries, and Mutations
  • Resolvers and data fetching
  • Handling the N+1 problem (DataLoader)

4. High-Performance APIs with gRPC

  • Protocol Buffers (Protobuf) syntax
  • Unary vs Streaming RPCs
  • gRPC vs REST performance comparison
  • Implementing gRPC in Node/Python/Java

5. API Security & Authentication

  • OAuth 2.0 Authorization Code Flow
  • Securing endpoints with JWT
  • CORS (Cross-Origin Resource Sharing)
  • Preventing common API attacks (OWASP API Top 10)

6. Microservices Transition

  • When to break the monolith
  • Strangler Fig pattern for migration
  • Defining bounded contexts
  • Managing shared databases vs database-per-service

7. Inter-Service Communication

  • Synchronous HTTP vs gRPC
  • Asynchronous communication via Message Brokers
  • Handling eventual consistency
  • The Outbox Pattern

8. API Gateways & Edge Services

  • Role of an API Gateway (Kong, AWS API Gateway)
  • Routing and payload transformation
  • Rate limiting and throttling
  • SSL Termination

9. Reliability & Fault Tolerance

  • Implementing Circuit Breakers
  • Retry strategies with exponential backoff
  • Timeouts and fallbacks
  • Health checks and readiness probes

10. API Testing & Documentation

  • OpenAPI Specification (Swagger)
  • Automated API testing (Postman / Jest)
  • Contract testing (Pact)
  • Monitoring API performance

Local Training Campuses & Placement Drives

Classroom & hybrid batches in Coimbatore & Chennai

Coimbatore • Training

API Development & Microservices Architecture
Chennai • Training

API Development & Microservices Architecture

Take the Next Step in Your Career

Join our comprehensive Masterclass: API Development & Microservices Architecture program and gain real-world skills that employers demand.

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