Articles
Articles
Practical guides on Django, backend engineering, and building products that scale.
The N+1 Problem in Django
Why your ORM is quietly making hundreds of database queries.
Resilient Logging in Django
Logs that actually help you when things go wrong in production.
Background Tasks with Celery in Django
Move slow work out of the request cycle and keep your users happy.
Error Handling in Go
Stop treating errors as an afterthought. Here's how to make them your most useful debugging tool.
Concurrency in Go: Goroutines, Channels, and Worker Pools
Go makes concurrency feel easy. That's exactly when you need to be careful. Here's how to do it right.
Django ORM Beyond the Basics: Annotations, Aggregations, and Subqueries
Most Django apps fetch data and compute it in Python. Here's how to push that work into the database where it belongs.
The Testing Landscape in Django
What tests are, why they matter, and how Django's testing toolkit fits together before you write a single assertion.
Unit Tests in Django with unittest
A hands-on guide to writing focused, reliable unit tests using Django's built-in TestCase: models, validators, utilities, and service logic.
Upgrading Django Tests to pytest
Take the unittest suite from Article 2 and migrate it to pytest. See exactly what changes, what stays the same, and why the switch is worth making.
Integration Tests in Django
Move up the test pyramid and test your views, APIs, and middleware end-to-end with TestClient and DRF's APIClient.
Testing Auth and Permissions in Django
A complete guide to testing login flows, token authentication, custom permission classes, and role-based access control — every boundary, every scenario.
TDD in Practice with Django
Build a real product review feature from scratch using test-driven development. Red, green, refactor — one cycle at a time.
Test Data and Isolation in Django
Scale your test suite without losing speed or confidence. A deep dive into factory_boy, pytest fixture scoping, and hermetic test isolation.
Coverage, CI, and Shipping with Confidence
The capstone of the series. Measure your suite, run it automatically on every push, make it fast enough that nobody skips it, and know when it is good enough to ship on.