I Built a Self-Hosted Competitor Price Monitor Because SaaS Pricing Is Out of Control
I Built a Self-Hosted Competitor Price Monitor Because SaaS Pricing Is Out of Control The Problem I run a small online store. To stay competitive, I n…
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FastAPI for AI Engineers - Part 6: JWT Authentication in FastAPI
In the previous article, we explored the concepts of Authentication and Authorization. We learned that: Authentication answers "Who are you?" Authoriz…
FastAPI for AI Engineers - Part 5: Authentication vs Authorization (And Why Most Beginners Confuse Them)
In the previous article, we explored how Pydantic validates data before it enters our application. For example, if an API expects a temperature value,…
Event-Driven Algos: Mastering Webhooks and Order Lifecycle Event Triggers
In our previous article, we tackled low-latency data ingestion by architecting high-performance WebSocket streaming clients. Sockets are perfect for c…
FastAPI for AI Engineers - Part 4: Stop Bad Data Before It Breaks Your API (Pydantic and Data Validation)
In the previous article, we connected our FastAPI application to a database using SQLite and SQLAlchemy. We also used classes like: class StudentCreat…
Same PRD, four stacks, zero LLM calls — and EU AI Act Annex IV from the same spec
Last month I published spec-driven development across NestJS, Go, Spring Boot, Laravel, and Rust . This follow-up narrows to the four stable web stack…
NeoBrain: A Local Alternative to Character.AI
🧠 NeoBrain: локальный аналог Character.AI Запусти ИИ-персонажей на своём ПК — без интернета, VPN и слежки. 🤔 Проблема Character.AI хорош, но: ❌ Заблок…
Building an AI Content Studio with Angular, FastAPI, and LangGraph
TITLE: Building an AI Content Studio with Angular, FastAPI, and LangGraph INTRODUCTION: Combining an Angular frontend, a FastAPI backend, and LangGrap…
Multi-Cloud Deployment in Production: Cloud Run, Railway, Oracle Cloud
Multi-Cloud Deployment in Production: Cloud Run, Railway, Oracle Cloud Published on : 2026-06-06 Reading time : 10 min Tags : #devops #cloud #fastapi …
Пять продуктов в одном FastAPI-монолите: HTMX вместо React, грабли Telegram Mini App и биллинг на Stars
TL;DR: Привет, Хабр. С 2 по 12 мая я в режиме нон-стоп писал Doday — кросс-платформенный todo: web, Telegram Mini App, чат-бот. Получилось 317 коммито…
React 19 Form Actions with FastAPI: Server-Side Validation That Hydrates Client State Without Duplicate Logic
React 19 Form Actions with FastAPI: Server-Side Validation That Hydrates Client State Without Duplicate Logic Form validation is where I watch develop…
FastAPI for AI Engineers - Part 3: Connecting to a database
In the previous article, we explored how to build our first CRUD API using FastAPI. While our API worked correctly, there was one major problem. We we…
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…
FastAPI Middleware Ordering: Why Your CORS, Auth, and Tenant Context Stack Matters in Production
FastAPI Middleware Ordering: Why Your CORS, Auth, and Tenant Context Stack Matters in Production I spent three days debugging why JWT validation was r…
Webhook в TestY заставил переписать приложение с нуля: от Flask-костылей к FastAPI
Привет, Хабр! Меня зовут Станислав Кулагин, я ведущий инженер отдела сертификационного тестирования компании YADRO. Я разработал ATS Studio — Flask-пр…
PostgreSQL Connection Pooling in FastAPI: PgBouncer vs. SQLAlchemy QueuePool vs. Render's Native Pools
PostgreSQL Connection Pooling in FastAPI: PgBouncer vs. SQLAlchemy QueuePool vs. Render's Native Pools Connection pooling sounds boring until your Saa…
Tilda и СБИС Presto: как мы синхронизируем остатки через стоп-лист, а не каталог
Как мы избавили общепит от часа ручной работы каждое утро: разобрали реальный кейс синхронизации стоп-листа из СБИС Presto в каталог на Tilda через Co…
FastAPI for Data Engineers: Building, Testing, and Debugging APIs That Don't Lie to You
The JobSense project needed a FastAPI backend that served 604 job embeddings via semantic search, a Pydantic validation layer that stopped bad data be…
Why we calibrate the indicator Total, not the raw scores
A 360 review collects answers from three to ten people about one person. Then the reviewer sits down to "calibrate" the result. The industry default i…
Building KindaSeen with FastAPI, Next.js, and PostgreSQL
“Did We Already Watch This?” — Building KindaSeen with FastAPI and Next.js A few months ago, my friends and I kept running into the same question when…
Clean Architecture in a FastAPI + Vue 3 monorepo
Why architecture matters in a research project Most research prototypes are throwaway code. NumPath is not. It needs to survive four phases over 30 we…
Stripe Webhook Idempotency in FastAPI: Handling Duplicate Events Without Double-Charging SaaS Customers
Stripe Webhook Idempotency in FastAPI: Handling Duplicate Events Without Double-Charging SaaS Customers I learned this lesson the hard way. Three mont…
How I Built and Monetized a Currency Exchange Rate API with FastAPI, Deployed it on Render, and Published it on RapidAPI.
Introduction: In order to build passive income streams, I decided to publish APIs on RapidAPI. The idea is straightforward: build a useful API once, s…
Как заставить ИИ играть по правилам ролевой системы: архитектура авторитарного бэкенда для AI RPG
Сделать текстовую игру на базе LLM легко, если вас устраивает бесконечный неконтролируемый чат, который ломается через 30 ходов из-за модельного дрейф…
Why Your OpenAI Wrapper Is Costing Too Much (And How LangGraph Fixes It)
Many businesses rush into artificial intelligence by building a basic OpenAI wrapper. They connect a simple user interface to an API endpoint, upload …
How to Structure a FastAPI Application
FastAPI is one of the best Python web frameworks available today — fast, async-native, and backed by excellent tooling. But when you move beyond a sin…
Live chain-of-thought in a chatbot: how to actually stream the tool calls (not just the text)
Most "streaming" LLM chatbots stream just the text. The model says "I'll search for that…" and then you wait 6 seconds while the tokens dribble in. Th…
How I secured my FastAPI app - 6 vulnerabilities fixed in one session with gstack /cso
I've been building ratecalc.fyi — a free sponsorship rate calculator for UGC creators — for 16 days. On day 13, I ran a security audit using gstack's …
I Got Tired of SNMP Dev Hell, So I Built Trishul SNMP Suite
If you've done serious SNMP work, you know the tax. Terminals full of snmpwalk flags you've looked up three times before. A MIB browser you either pai…
How I Built a Programmatic SEO Site with 16,750 Pages Using FastAPI and PostgreSQL
A deep dive into building BSBFinder.com — a free Australian BSB number lookup tool — from data pipeline to deployment. Every Australian bank transfer …