Designing Idempotent APIs: A Practical Guide to Preventing Duplicate Requests
Learn how to implement API idempotency keys to eliminate duplicate transactions, repeated form submissions, and race conditions across distributed backends.
Database Indexing Explained Simply: How to Fix Slow SQL Queries at Scale
Slow queries wrecking your app performance? Learn how B-tree database indexes work, how to read execution plans, and how to write composite indexes that scale.
Designing High-Throughput Event-Driven Architectures: Conquering the Dual-Write Problem with Transactional Outbox and CDC
Solve distributed data corruption by replacing fragile dual-writes with PostgreSQL logical decoding, Debezium CDC, and idempotent Kafka consumers.