#Microservices

Learn Circuit Breaker Pattern in Spring Boot with Resilience4j - from operating principles, detailed configuration, practical examples to best practices. A complete guide to help you build resilient microservices systems, prevent cascading failures and automatically recover when services encounter problems.

Duy TranDecember 23, 202535 min

Comprehensive course on AI Agent Engineering — from Python & ML foundation, NLP & LLMs (LLaMA, Mistral, Qwen, Phi), RAG with Vector DB (FAISS, Milvus, Pinecone), to building AI Agent systems with LangChain, LlamaIndex, CrewAI, LangGraph. Practice Fine-tuning, Prompt Engineering, Tool Calling, Multi-Agent. Deploy production with FastAPI, Docker, Microservices, MLOps, CI/CD on AWS/Azure/GCP. Fully meets AI/ML Engineer recruitment requirements at leading technology companies.

Comprehensive series on Full-Stack system design with Microservices Backend and Micro Frontend — from system separation thinking using Domain-Driven Design, API design (REST, GraphQL, gRPC), Data Architecture (Saga, CQRS, Event Sourcing), to Micro Frontend architecture (Module Federation, Shell App, Design System), BFF Pattern, API Gateway, Testing Strategies, CI/CD Pipeline, Observability full-stack and Production Readiness. Includes a practical case study of building an E-Commerce Platform and migration instructions from Monolith. Technology update 2026.

A hands-on series on building a complete Microservices system with Quarkus 3.x — the "Supersonic Subatomic" Java framework designed specifically for Cloud Native and Kubernetes. Using PostgreSQL as main database, Keycloak for Authentication & Authorization (OIDC), Apache Kafka for Event-Driven Communication, gRPC for high-performance inter-service. From creating your first project with Dev Services, building a REST API with Panache, to deploying production on Kubernetes with GraalVM Native Image. Includes Fault Tolerance, OpenTelemetry Observability, Contract Testing, CI/CD Pipeline and Production Readiness Checklist. Actual project: E-Commerce Platform system includes 5 microservices.

Step-by-step instructions for building a medical information system (HIS/EMR/LIS) with Microservices architecture using Quarkus, PostgreSQL and Keycloak. Compliant with HIPAA, HL7 FHIR, Zero Trust security standards. From architectural design, building services, decentralization, data encryption, audit logging to production deployment on Kubernetes. Each article has practical code, ready to be applied to hospitals and medical facilities.

Comprehensive practical course on deploying Microservices on-premises systems using Kubernetes HA (High Availability), PostgreSQL HA with Patroni, Ceph/Rook storage, Istio Service Mesh, ArgoCD GitOps, Prometheus Observability Stack, HashiCorp Vault, RabbitMQ HA, Redis Cluster and many other production-grade technologies. From infrastructure design, cluster installation, microservices deployment to operations, DR and enterprise standard security. 50 lessons + practice labs on bare-metal/VM.

Comprehensive Golang course from basic to advanced, helping you master the Go language and build high-performance backends. Includes Go fundamentals, Goroutines, Channels, Gin/Fiber framework, GORM, gRPC, Microservices, Testing, Docker and Production deployment. Updated to Go 1.23+ with generics, iterators and the latest 2026 best practices.

Comprehensive series on Cloud Native Microservices architecture — from container platforms, Kubernetes, microservices design principles (DDD, Bounded Context), communication models (REST, gRPC, Event-Driven), to Data Management (CQRS, Saga, Event Sourcing), Service Mesh, Observability, Resiliency Patterns, CI/CD GitOps and Security. Combine solid theory with practical architecture for production systems.

In-depth series on Enterprise AI Chatbot Platform system architecture: multi-model gateway, RAG pipeline, agentic architecture (multi-agent orchestration, tool calling, planning & reflection), conversation memory, streaming & voice, guardrails & safety, multi-channel deployment, multi-tenant architecture, analytics & observability, evaluation & optimization, GPU infrastructure & model serving. Build an enterprise-level chatbot platform from A-Z, ready for production.

In-depth course on Event-Driven Microservices Architecture. Includes Apache Kafka & Pulsar, Saga Pattern, CQRS & Event Sourcing, Outbox Pattern, Exactly-once Semantics, Schema Registry, Dead Letter Queue, and Choreography vs Orchestration. Design an event-driven production-ready microservices system with consistency guarantees. Case studies: Uber, Wix, Booking.com. Updated 2026.

Comprehensive course on FinTech and Payment Platform system architecture from basic to advanced. Including Payment Gateway, Digital Wallet, Double-Entry Ledger System, Fraud Detection, AML/KYC Pipeline, Core Banking Architecture, Lending Platform. Practical integration with VNPay, MoMo, ZaloPay, Stripe. Compliant with PCI-DSS, PSD2 and State Bank of Vietnam regulations. Case studies from leading payment systems in the world and Vietnam. Updated according to FinTech trends 2026.

Comprehensive course on Multi-tenant SaaS Platform architecture from basic to production-ready. Includes Tenant Isolation Strategies, Subscription & Billing Engine, Plugin/Extension Architecture, White-labeling, Onboarding Automation, Feature Flags, Usage Metering, and Self-service Admin Portal. Design a SaaS system that meets thousands of tenants at optimal costs. Case studies from Slack, Notion, Atlassian and leading SaaS platforms. Updated 2026.

In-depth series on Fashion Design & Print-on-Demand (POD) system architecture: domain analysis, AI-powered design studio (Stable Diffusion, ControlNet, CLIP), product catalog & multi-channel e-commerce, order orchestration & fulfillment, supplier network routing, print production pipeline, AI recommendation & trend forecasting, data platform & ML pipeline, Kubernetes infrastructure, security & IP protection, Printful/Printify/Gelato case studies. From design ideas to products in customers' hands.

The NestJS course is comprehensive from basic to advanced, helping you master the most modern Node.js framework for the backend. Includes TypeScript, Dependency Injection, Modules, Controllers, Providers, TypeORM, Prisma, Authentication, Authorization, Guards, Interceptors, Pipes, WebSockets, GraphQL, Microservices, Testing, Docker and Production deployment. Updated according to NestJS 11+ and the latest 2026 best practices.

The System Architecture course is comprehensive from basic to advanced, helping you master how to design large-scale systems. Includes fundamental knowledge of Scalability, Availability, Consistency, architectural patterns such as Microservices, Event-Driven, CQRS, along with infrastructure components such as Load Balancer, CDN, Caching, Message Queues, Database Scaling. The course combines theory with real-life case studies from Netflix, Uber, Twitter and other large systems. Updated according to modern architectural trends 2026.

Comprehensive Docker course from fundamentals to advanced level, helping you master container technology from the first concepts to real-world production deployment. Covers Dockerfile, Docker Compose, Networking, Storage, Security, CI/CD, Docker Swarm, Microservices and best practices for enterprise environments. Updated with Docker Engine 27+ and modern container technologies as of 2026.

Comprehensive course on Spring Boot 4.x from basic to advanced, helping you build professional backend applications with REST APIs, Spring Data JPA, Spring Security, JWT, OAuth2, microservices, testing, Docker and deployment in production environments. Update Spring Boot 4.0 with Spring Framework 7, Virtual Threads, GraalVM Native Image.

Comprehensive basic to advanced Kubernetes course for 2026, helping you master container orchestration, deploy production-ready applications, and prepare for CKA/CKAD certification. Updated to Kubernetes 1.32+ with Gateway API, Cilium, OpenTelemetry, Helm 4, Sidecar containers GA, ValidatingAdmissionPolicy, and AI/ML workloads.

Nginx Master Course: From Zero to Hero is a comprehensive course that helps you master Nginx from the most fundamental concepts to advanced techniques in real-world production environments.