Reverse Proxy vs API Gateway vs Load Balancer
Three edge layers, three different jobs: one shapes HTTP traffic, one spreads load, one enforces API policy. Here’s where each belongs.
devdevopsapi
Posts tagged “architecture”
Tiny explainers grouped by topic. Spend less time Googling, more time building.
RBAC vs ABAC vs ReBAC
Most teams do not need every authorization model. This shows where RBAC, ABAC, and ReBAC fit, and what gets painful later if you pick the wrong one.
devauthauthorization
Pagination That Scales: Offset vs Cursor vs Keyset
Trade-offs, pitfalls, and production-ready code with SQL, Node, FastAPI, MongoDB and Elasticsearch examples.
databasesbackendpostgresql
Events, Commands, and Sagas — coordinate cross‑service work without tight coupling
Commands say 'do X', events say 'X happened'. Use sagas (orchestration or choreography) for long‑running, cross‑service workflows with compensations, idempotency, and reliable messaging.
devarchitecturemicroservices
Queues 101 — At‑Least‑Once (and Why “Exactly‑Once” Is a Myth)
Design for duplicates and reordering. Use idempotency, an inbox/outbox, and per‑key ordering to get effectively‑once processing in real systems.
devarchitecturemessaging
SSE vs WebSockets vs Polling: which real-time transport should you use?
Live updates usually come down to one question: who needs to talk, and how often? This compares polling, SSE, and WebSockets by that decision.
devrealtimesse
Common Design Patterns — The 5‑Minute Version
A whirlwind tour of widely used patterns—Singleton, Factory, Observer, Strategy, Adapter/Decorator—with tiny examples, when to use them, and common pitfalls.
devprogrammingdesign-patterns
Monolith vs Microservices — A Quick Comparison
The practical trade‑offs: when a monolith (or modular monolith) is the right call, when microservices pay off, and how to evolve without pain.
devarchitecturemicroservices