Debugging HTTP Requests in ASP.NET Core Across Environments
When the same HTTP request works in dev but fails in production, debugging gets messy fast. Example: a request returns 200 in dev but 400 in prod beca…
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Stop Getting Rate-Limited: Building Bulletproof LLM API Consumption Patterns
You know that feeling when your chatbot suddenly stops responding at 2 AM because you hit the rate limit on your LLM provider? Yeah, we've all been th…
Accounting Integration
Your finance team didn't sign up to be data-entry clerks. Neither did your customers. Yet every day, thousands of businesses manually export transacti…
Why AI Is Breaking Your API Security Model (And Nobody on Your Team Notices)
Your API gateway is lying to you. While you’ve been perfecting your OAuth flow and rate-limiting on the front door, AI has been busy building back doo…
How to Trim and Cut Video with FFmpeg (CLI + API Guide)
Originally published at ffmpeg-micro.com . You need to extract a 30-second clip from a 2-hour video. Or trim the first 5 seconds of dead air. Or cut e…
Tutorial: Build High-Throughput APIs with Go 1.24 and Gin 1.10
In 2024, API throughput remains the single biggest bottleneck for 68% of backend teams, with 42% of Go-based services failing to exceed 10k requests p…
Migrating Postman to Bruno in a monorepo: the practical guide
The ticket lands on a Monday morning: "Migrate Postman collections to Bruno, integrate them into the monorepo." You've used Postman for years without …
The Ultimate Guide to Free APIs Every Developer Should Know About
The Ultimate Guide to Free APIs Every Developer Should Know About As developers, we're often tasked with building applications that require data from …
Three Ways to Convert JSON to TypeScript. Only One Is Deterministic.
There are three ways to turn a JSON response into TypeScript interfaces. You can write them by hand, you can ask an LLM, or you can run the JSON throu…
Aximo - offline-first STT API
Finally got Aximo running publicly on Hugging Face Spaces — local CPU speech-to-text API with Swagger microphone recording, powered by Parakeet v3. De…
code-shot: the code-screenshot API that I wish existed
For seven years Carbon has been the canonical "make a code screenshot" tool. Same with Ray.so since 2020. Both are fantastic — and both are design sur…
The Go Memory Model, Why Your Concurrent Code Might Be Lying to
You write two goroutines. One sets a variable, the other reads it. You run it a thousand times and it works fine. Then it breaks in production, on a d…
5 Critical Security Vulnerabilities in Python APIs (and How to Fix Them in Production)
Introduction Most API security issues are not caused by complex attacks—they come from simple mistakes made during development. In production systems,…
How to Build a Production-Ready Secure Python API (JWT, Rate Limiting, and Caching)
Introduction Most Python APIs work perfectly in development—and fail in production. The issue is rarely functionality. It’s missing security and resil…
Day 67: Escaping the Sandbox. Wiring a Live Banking API to AWS Lambda
Today was the day my financial SaaS stopped being a toy. For Day 67, I replaced my simulated Plaid data with a live connection to the Wise API. The Ch…
Баги n8n v4.4 и загрузка файлов в VK API: лечим ERR_UPLOAD_BAD_SIGNATURE и потерю метаданных
Разбираем выгрузку Excel-отчетов в VK API через n8n v2.11.3. Лечим каскад ошибок: ERR_UPLOAD_BAD_SIGNATURE, потерю метаданных filename и баги узла HTT…
Turning email and cron into webhooks
I had two small problems that kept coming back in side projects: I wanted an email address that would call my webhook I wanted a cron job that would c…
One Platform to Call, Deploy, and Fine-tune Every AI Model You Need
Today’s AI development is a logistical nightmare. The Developer Team always has to integrate with different model providers—each with its own API keys…
How to Compress Video with FFmpeg API (No Server Required)
Originally published at ffmpeg-micro.com . You need to compress video in your app. Maybe users are uploading 500MB screen recordings. Maybe you're bat…
Testing a Go exchange API client: mocks, httptest and testcontainers
The Go service runs locally, tests pass. Then you remember the tests are hitting the real Binance API. The next day, CI fails: rate limit exceeded, un…
Monetizing 6 Ancient Chinese Divination APIs with x402 (MCP + USDC on Base)
Why an MCP server for fortune-telling? I'm not joking. Hear me out. The Chinese divination corpus is deterministic computation dressed up as mysticism…
10 Best Free APIs Every Developer Should Know in 2024
10 Best Free APIs Every Developer Should Know in 2024 If you're building side projects, prototypes, or even MVPs, free APIs are your best friend. They…
How I Turned “It Works, But Users Are Confused” Into a Clear Onboarding Flow
A client once told me: “Our product works… but users keep getting stuck.” That sentence says a lot. Because it means the problem isn’t technical. It’s…
Why ERP integrations silently fail in production (and how I fixed it in Go)
Most integration systems don’t break immediately. They fail silently over time by corrupting your data. I learned this the hard way while building ERP…
GraphQL vs REST - Which One Should You Really Use?
For years, REST APIs have been the standard. Then GraphQL came in with promises like: “Fetch exactly what you need” “Reduce API calls” “More flexible …
Your First Twilio Webhook in Production — What the Docs Don’t Tell You
The five things developers get wrong when moving from Twilio’s quickstart to a production webhook handler. Twilio’s quickstart gets you to “Hello Worl…
Generating PDF Invoices with a Single API Call (No Libraries Needed)
Generating PDF Invoices with a Single API Call (No Libraries Needed) If you've ever tried to generate PDF invoices programmatically, you know the pain…
I Built a Cron Job Monitoring API in a Weekend
Every developer has at least one cron job running somewhere — backups, data processing, sending reports. And every developer has had the experience of…
Why Your Stripe Webhooks Are Silently Failing (And How to Fix All of It)
The five mistakes that cause payment integrations to break in production — with no error messages to tell you why. There’s a specific kind of dread th…
How to Build a Production-Ready Registration System Without a Backend (Using HosteDay API)
Introduction Building a complete registration system usually means setting up a backend, managing authentication, handling validation, and securing en…