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topic backend engineeringView all posts

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Showing 1–8 of 8

deploymentJul 17, 20262 min read

Zero-Downtime Database Migrations: A Safe Deployment Playbook

Use expand-and-contract migrations, backfills, compatibility windows, observability, and rollback planning to change production schemas safely.

API securityJul 17, 20262 min read

Rate Limiting Distributed APIs: Algorithms and Practical Design

Design reliable API rate limits with token buckets, sliding windows, identity keys, distributed storage, response headers, and safe failure behavior.

backend engineeringJul 17, 20262 min read

Preventing SQL Injection in Modern Applications

Learn how parameterized queries, least privilege, validation, safe logging, and testing protect applications from SQL injection.

API designJul 17, 20262 min read

REST API Pagination, Filtering, and Sorting Done Right

Design predictable REST collection endpoints with pagination, filtering, sorting, validation, stable cursors, and clear response contracts.

API designJul 17, 20262 min read

GraphQL API Design: Schemas, Resolvers, and Production Trade-Offs

Learn GraphQL API design through schemas, queries, mutations, resolvers, pagination, authorization, caching, limits, and production trade-offs.

securityJul 17, 20262 min read

Build a Production-Ready File Upload Pipeline

Design secure file uploads with validation, object storage, virus scanning, signed URLs, metadata, quotas, processing jobs, and safe delivery.

concurrencyJul 17, 20262 min read

Database Transactions and Isolation Levels Explained

Understand transactions, ACID behavior, isolation levels, locking, retries, and safe multi-step database operations.

distributed systemsJul 17, 20262 min read

Redis Caching Patterns: TTLs, Invalidation, and Failure Modes

A practical guide to Redis caching patterns, cache-aside design, TTLs, invalidation, stampede protection, consistency, and observability.