A Practical Guide to CQRS and Event Sourcing
This guide explains CQRS and Event Sourcing in terms of domain boundaries, projections, consistency tradeoffs, snapshots, and operational complexity.
Backend
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This category currently contains 23 posts.
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A Practical Guide to CQRS and Event Sourcing
This guide explains CQRS and Event Sourcing in terms of domain boundaries, projections, consistency tradeoffs, snapshots, and operational complexity.
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A Practical Guide to CQRS and Event Sourcing
This guide explains CQRS and Event Sourcing in terms of domain boundaries, projections, consistency tradeoffs, snapshots, and operational complexity.
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Implementing Event-Driven Architecture with Apache Kafka
This guide covers event contracts, partition meaning, idempotency, replay, DLT, and operational metrics when using Kafka as a foundation for event-driven design.
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Implementing Circuit Breakers and Failure Isolation with Resilience4j
This guide explains how to use Circuit Breaker, Retry, TimeLimiter, and Bulkhead as an operational strategy for failure isolation in Spring Boot services.
Reading Flow
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STEP 1
Job Status Patterns for Long-Running Bulk APIs
Treating long-running backend work as a synchronous API problem usually hurts both user experience and operational stability. Here is a practical job-status pattern.
STEP 2
Operating Consumer-Driven Contract Versioning
API versioning is less about bumping numbers and more about moving consumers safely without breaking real dependencies.
STEP 3
API Deprecation and Sunset Runbook
Retiring an API is often riskier than launching one. This post outlines practical rules for deprecation and sunset operations.
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Job Status Patterns for Long-Running Bulk APIs
Treating long-running backend work as a synchronous API problem usually hurts both user experience and operational stability. Here is a practical job-status pattern.
Operating Consumer-Driven Contract Versioning
API versioning is less about bumping numbers and more about moving consumers safely without breaking real dependencies.
API Deprecation and Sunset Runbook
Retiring an API is often riskier than launching one. This post outlines practical rules for deprecation and sunset operations.
Timeout Budgeting Across a Backend Request Path
A timeout is not just a number. It is a resource-protection contract across the full backend call chain.
Backend Learning Path: Beginner to Advanced
A structured backend roadmap covering API fundamentals, reliability patterns, and distributed architecture in a practical learning order.
API Idempotency Key Lifecycle Design
How to design idempotency key generation, storage, expiry, and replay behavior for real production APIs.
Saga Orchestration vs Choreography in Real Systems
How to choose between orchestrated and event-driven sagas when distributed workflows become hard to reason about.
API Rate Limiting and Fairness Design
A practical guide to rate limiting that balances protection, fairness, burst tolerance, and tenant experience in production APIs.
Backend Idempotency and Retry Design Principles
A practical guide to designing idempotent backend behavior across duplicate requests, network retries, and asynchronous processing.
Implementing Circuit Breakers and Failure Isolation with Resilience4j
This guide explains how to use Circuit Breaker, Retry, TimeLimiter, and Bulkhead as an operational strategy for failure isolation in Spring Boot services.
Designing Distributed Transactions with Outbox, Inbox, and Idempotency
This guide covers Outbox, Inbox, idempotency, retries, ordering, and observability as the practical foundation for distributed consistency without defaulting to 2PC.
Implementing Event-Driven Architecture with Apache Kafka
This guide covers event contracts, partition meaning, idempotency, replay, DLT, and operational metrics when using Kafka as a foundation for event-driven design.
Core MSA Patterns: API Gateway, Circuit Breaker, and Event-Driven Design
A production-focused guide to microservice architecture. Learn when service boundaries pay off, how gateway and async patterns change failure modes, and what makes MSA sustainable beyond diagrams.
Designing a Spring Boot REST API That Holds Up in Production
A production-focused guide to Spring Boot REST APIs. Learn how to keep controllers thin, contracts stable, transactions honest, and operational behavior predictable as the system grows.
A Guide to Designing Real-Time Communication with WebSocket
This guide covers connection lifecycle, message modeling, authentication, delivery guarantees, and scale-out concerns when designing Spring Boot WebSocket systems.
Building a REST API Quickly with Python FastAPI
This guide takes FastAPI beyond demo code and focuses on schema separation, dependency boundaries, authentication, exception policy, and production checkpoints.
Designing and Implementing a GraphQL API: How Is It Different from REST?
This guide covers schema design, resolver responsibility, N+1, mutation design, authorization, and operational tradeoffs when treating GraphQL as a contract model rather than just selective field fetching.
A Practical Guide to Spring Boot and Redis Caching Strategies
This guide goes beyond @Cacheable and focuses on TTL design, invalidation, hot keys, consistency tradeoffs, and the metrics needed to run Redis caching well in production.
A Practical Guide to Spring Boot JPA and Hibernate
This guide covers entity boundaries, relationship cost, N+1, DTO reads, transaction design, and operational pitfalls when using JPA in production.
A Guide to Spring Boot Testing Strategy
This guide explains how unit tests, slice tests, and integration tests should be divided in a Spring Boot codebase to balance speed and confidence.
A Guide to Spring Security and JWT Authentication Design
This guide covers JWT login flow, filter-chain responsibilities, token lifetime, authorization boundaries, and the operational decisions required for a production-ready setup.
A Practical Guide to Building a REST API Server with Node.js and Express
This guide covers how to keep an Express API maintainable in production through layer separation, middleware design, validation, authorization boundaries, and consistent error handling.