Build a REST API with Django REST Framework
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A Small Refresh Bug That Uncovered Security Gaps in My OTP System
The Bug That Started It All It began as a small bug I found myself while testing: OTP verification kept failing whenever I refreshed the page, opened …
The Best Python SaaS Boilerplates in 2024: A Comprehensive Guide
The Best Python SaaS Boilerplates in 2024: A Comprehensive Guide Building a SaaS application from scratch means reinventing the wheel on authenticatio…
My build in public journey: creating an Ebook generator
I once spent three weekends writing a single ebook for my Python course. Last month, my product ( Ebookr.ai ) generated a better one in about fifteen …
Closing the Loop: Emailing Myself When My Resume Gets Downloaded
I already had a resume download gate — email required, signed link, 15-minute expiry, presigned S3 URL good for two minutes. What it didn't have was a…
How to Prefetch Across GenericForeignKeys When You Can't Change the Schema
You don't always control the schema you work with. Sometimes you inherit a codebase where GenericForeignKey is threaded through the models, and a migr…
Debugging a Payment Webhook: How I Caught a Silent Failure That Would Have Blocked Every Non-Card Transaction
While building the payment flow for a single-vendor e-commerce portfolio project, I wrote a Midtrans webhook handler that looked correct on the first …
Django: History and Trends
Django is a Python development classic that has been helping build and maintain web projects of all scales for two decades. But how does this monolith…
How We Reduced Our LLM API Costs by 60%: What Actually Worked
At some point in most of our production AI projects, someone looks at the monthly API bill and asks whether we can do something about it. The answer i…
Structured Outputs: How We Stopped Parsing LLM Responses by Hand
Every team we talk to has a version of the same story. They built an LLM integration that works well in testing. Then, three weeks into production, so…
Have you ever built a scale web app, testing it everything works well, only for it to break when there are many visits on the site? Here below is a guide to prevent this from happening while using Django.
Why Your Django Application Becomes Slow — And How Experienced Developers Prevent It CodeXmingle CodeXmingle CodeXmingle Follow Jun 22 Why Your Django…
From Feature Delivery to Platform Engineering.
The Problem: Feature Velocity Was Creating Structural Debt The system originally started as a simple feature delivery backend: A Django API powering a…
I Built a Django-Inspired Web Framework in Rust — Here's What I Learned
If you've ever used Django, you know the feeling: one command, and you have an admin panel, an ORM, form validation, middleware, session handling — ev…
Shipping 12,000+ Lines Across 6 Systems in 19 Days: A Masterclass in Backend Architecture.
What looked like a chaotic sprint was actually a strict exercise in architectural discipline. The last time I published on Dev.to was in late May. At …
How We Optimized a Django Playwright Scraper to Save 60% on Rotating Proxy Bandwidth
As indie hackers and backend developers, we love using modern browser automation frameworks like Playwright to handle heavy, JavaScript-rendered dynam…
Как тестировать HTTP-запросы к внешним сервисам в Python-приложениях: requests-mock, pytest-httpx и FastAPI
Не всегда стоит патчить ответ от внешнего HTTP-сервиса через mocker.patch . В таких тестах приложение возвращает ожидаемый ответ, но важная част…
We found a data-loss bug that alembic downgrade ran clean
alembic downgrade -1 ran clean. No errors. Monitoring went green. The users' phone numbers were gone. The column came back. The data didn't. Why stand…
Generating High-Quality PDFs in Django with Playwright (When Other Libraries Fall Short)
Generating High-Quality PDFs in Django with Playwright (When Other Libraries Fall Short) PDF generation is one of those tasks developers often underes…
IDOR Lab: The Bug Bounty Training Platform That Doesn't Hold Your Hand
A Django-based vulnerable lab built to simulate real-world IDOR scenarios — not just textbook examples. If you've spent any time in Bug Bounty hunting…
The N+1 Query That Killed Our Database, And How I Fixed It
Everything Worked…But Not Well APIs are affected by the way data is retrieved from the database, and that's something that affected a recent teammate …
Deploying Cookiecutter Django on DigitalOcean (Ubuntu 24.04 (LTS) x64)
A no-fluff deployment runbook for getting a Cookiecutter Django project live on DigitalOcean using Docker and Traefik. Covers the full path from dropl…
z4j: a self-hosted control plane for Python task queues
z4j is an open-source dashboard for Python background-job systems. It connects to the task queue (or queues) running in production and gives operators…
How to Prevent IDOR Vulnerabilities in Django REST APIs
How to Prevent IDOR Vulnerabilities in Django REST APIs An authenticated user changes /api/orders/42/ to /api/orders/43/ and reads someone else's orde…