Backend
Replication Lag: The Hidden Cost of Read Replicas
Why read replicas introduce stale reads, how replication lag breaks consistency assumptions, and practical patterns to handle it safely.
·4 min read
Tags
Backend
39 articles · Page 1 of 4
Backend
Why SQLite Deserves a Place in Your Backend Stack
Not just for mobile apps: with WAL mode and the right replication strategy, SQLite runs production workloads with less operational overhead than Postgres.
·4 min read
Backend
HTTP/3 and QUIC: What Backend Engineers Should Know
HTTP/3 replaces TCP with QUIC over UDP, eliminating head-of-line blocking at the transport layer — here's what actually changes for your services.
·4 min read
Security
Postgres Row-Level Security for Multi-Tenant Applications
How to enforce tenant isolation at the database layer with Postgres RLS instead of relying on application code to remember a WHERE clause.
·4 min read
Backend
Soft Deletes: The Feature That Costs More Than It Saves
Soft deletes look like a simple safety net, but they silently corrupt your schema, poison your queries, and break your constraints — here's what to use instead.
·5 min read
Backend
Graceful Shutdown in Node.js Production Services
Most Node.js services silently drop in-flight requests on every deploy. How to handle SIGTERM correctly, drain connections and exit cleanly in Kubernetes.
·5 min read
Engineering
Runtime Type Safety with Zod: Validating at Every Boundary
TypeScript's type system stops at compile time — Zod closes the gap by validating data at the runtime boundaries where it actually matters.
·4 min read
Backend
HTTP Caching: Cache-Control, ETags and CDN Strategies
A practical guide to HTTP caching headers — what each directive actually does, when to use ETags, and how to stop fighting your CDN.
·4 min read
Backend
Building Type-Safe GraphQL APIs with Code Generation
A practical guide to end-to-end type safety in GraphQL with schema-first code generation: typed resolvers, client query types and no runtime mismatches.
·3 min read
Backend
Connection Pooling: Tuning for Performance Under Load
A deep dive into connection pool configuration: sizing formulas, connection lifecycle, health checking and diagnosing pool exhaustion under real traffic.
·4 min read
Backend
API Rate Limiting: Algorithms and Implementation
A deep dive into token bucket, sliding window and leaky bucket rate limiting, with distributed implementations in Redis and practical middleware patterns.
·4 min read
Backend
Database Migration Strategies for Zero-Downtime Deployments
Run database schema migrations without downtime using expand-contract patterns, backward-compatible changes and phased rollouts that keep serving traffic.
·5 min read