Retry Strategies in Ruby: Exceptions vs. Conditional Checks
Comparing Ruby retry patterns, exception-based retry, conditional checks, and exponential backoff, and when each keeps performance acceptable.
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API Design for Time Slot Replacement in Booking Systems
How to design a booking API that replaces regular time slots with alternatives, using server-side merging, cache versioning, and idempotency keys.
5 Parameter Code Smells and How to Refactor Them
Five parameter-related code smells, from boolean flags to long argument lists, and the refactor that turns each function into one that does one thing.
Kubernetes Node Upgrades: Cordon, Drain, and Failover
A cordon-drain-upgrade runbook for Kubernetes nodes, plus the PodDisruptionBudgets, priority classes, and lifecycle hooks that prevent outages.
When AWS Lambda Makes Sense for a Single API Endpoint
A decision framework for when AWS Lambda fits a single API endpoint, and when a container or dedicated server is the better call instead.
Ordering by an Associated Column Without Breaking includes
Why ordering ActiveRecord results by an associated table's column breaks with includes, and how references, Arel, and left_joins fix it for good.
N+1 Queries in Rails: What Silently Breaks `includes`
How ActiveRecord's includes prevents N+1 queries in Rails, and the common mistakes with order, filtering, and pluck that silently break it.
Building a Test Suite: Pyramid, Layers, and What to Skip
A framework for deciding how much to test: the testing pyramid, layered test responsibility by architecture tier, and what makes test data good.
Laravel Model: `save()` vs. `saveOrFail()`
When Laravel's save() silently returns false versus when saveOrFail() throws, and how to pair both with validation and database transactions.
Fixing Racing Background Job Updates: Rails to Laravel
How optimistic concurrency, unique job locks, and throttling stop out-of-order background job updates in both Rails/Sidekiq and Laravel queues.