The provider timed out after committing
Your HTTP client raises ETIMEDOUT on POST /charges . Something has to be written to the database, the status column has two useful values, and so th…
Latest News
⚑ Report a ProblemTech news from the best sources
All topics
AI
Gear
News
Tech
agents
ai
api
architecture
automation
beginners
career
database
devchallenge
devops
javascript
llm
machinelearning
mcp
opensource
performance
productivity
programming
python
react
security
showdev
testing
tutorial
typescript
webdev
Building a Data Pipeline for Real Estate Feasibility Analysis
Real estate feasibility analysis is often treated as a financial modeling problem, but the financial model is only as reliable as the data behind it…
How a Timeout Can Charge Your Customer Twice (And How to Stop It in Laravel)
A customer attempts a payment. The request safely reaches your server, and the transaction is performed successfully. Then, while the response is be…
HLD: Instagram Feed
Design a photo-sharing platform where users post photos and see a feed of photos from people they follow. 1️⃣ Clarify Requirements Functional Requir…
Stop Choosing Between BM25 and Vector Search: Implement Hybrid Search with RRF
Combine dense embeddings and sparse keyword search using Reciprocal Rank Fusion to eliminate retrieval failure modes in production RAG systems. The…
Next.js + Node.js: Where Do You Draw the Line?
I've been building a few applications with Next.js and Node.js, and one thing I keep coming back to is: How much backend logic should actually live…
Fixing a Prisma Client Resolution Issue in a pnpm Monorepo
Introduction While working on the RAHB project, I encountered a Prisma issue in a pnpm monorepo where prisma generate could not resolve @prisma/clie…
Polymarket Bot Execution: Why Detecting a Signal Isn't Enough
A trading bot can detect the right signal and still lose the trade. That sounds strange at first. If the strategy correctly identifies an opportunit…
Hidden complexity of building WebSocket servers from scratch
WebSockets Sound Simple Until You Have to Maintain One There's a moment every engineer hits when building a real-time feature: you look at the WebSo…
SQL Execution Order Internals: Why WHERE Fails on Aliases but ORDER BY Succeeds
Ever wondered why this query fails in SQL? SELECT department_id , COUNT ( * ) AS emp_count FROM employees WHERE emp_count > 5 -- ❌ Error: Invalid…
Building a Zero-Downtime Cache Invalidation Pipeline with Webhooks
Cache invalidation is notoriously difficult to get right in high-throughput systems. If your cache TTL is too short (e.g. 10 seconds), your database…
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026 In modern software, knowing that something happened is often just as important as kno…
Stop Using Regex: Building Zero-Crash LLM JSON Pipelines in Production
Replace brittle string parsing with schema-enforced validation and self-healing repair layers. The Bottleneck in Production Most LLM pipelines don't…
Introducing the Picverce AI Public API for image tools and generation models
Introducing the Picverce AI Public API Picverce AI just shipped a Public API so you can run the same image tools and generation models from your own…
ACH Return Code R01: Handling Insufficient Funds in Payout Systems
ACH Return Code R01: Handling Insufficient Funds in Payout Systems The source material about a sports trade doesn't align with fintech or payment in…
Why API Testing is the Silent Backbone of Great Software
Most of what makes a modern application work never appears on screen. Behind every screen tap or page load sits a network of APIs quietly passing da…
Managing Slack and Discord Bot Webhooks Without Getting Rate-Limited
429 too many requests Discord API rate limiting strategy async chat bot architecture asynchronous event handling asynchronous webhook processing AWS…
Simple SMS API Comparison: 3 Bounce-Suppression Controls for App Alert Status
Short answer: for B2B SaaS app alerts, choose an SMS API by whether webhook delivery events and polling results can feed one idempotent status ledge…
AOP: aspect / pointcut / advice / weaving
Every codebase grows a set of chores that have nothing to do with the actual job of a method, yet somehow end up inside every method anyway. Logging…
Building a Chat-Based Sales Bot That Doesn't Drop Messages During Flash Sales
Originally published at parvejshah.com/blog/conversational-commerce-webhook-architecture by Parvej Shah . In Bangladesh and much of South and Southe…
Frontend Backend Correlated Logging: Browser Fetch Request IDs and Server Logs
Short answer: give each browser fetch a request ID, carry it to the backend in a standard HTTP header, and emit that same ID in structured logs on b…
Load Balancing: How Backend Systems Handle Millions of Requests
Imagine you have built a backend API that works perfectly. You deploy it to a server, connect your database, and everything is running smoothly. The…
How do you design permissions for a multi-tenant SaaS product?
I’ve been thinking a lot recently while working on migrating the Role and Permission System of our organization-based SaaS product to a more scalabl…
JWTs are Like Stamped Letters
My favorite thing about innovative mechanisms used in web infrastructure to deconstruct hitches is how they usually have very similar themes to our…
NET Framework Essentials: Web Development Simplified
Your backend framework will outlive your current team. Choose one that the next team can still navigate — here's why .NET has been that framework fo…
Data Sniffing: Threats to Business and 5 Ways to Defend
Data sniffing, or packet sniffing, is the covert interception and analysis of data as it moves across a network. While some sniffers serve legitimat…
Designing a Zero-Trust Authorization Layer for Collection Actions
Most recovery technology is built for execution throughput: dialing numbers, streaming SMS, rendering demand letters, syndicating portfolios, report…
Email API Demystified: Own Welcome Templates, Suppression List, Report Files
Short answer: for customer-support reports, choose a transactional email service that can own templates and suppression controls while your applicat…
What is IoC and DI (Dependency injection)??
before we talk about IOC (Inversion of control) and DI (dependency injection) i will firstly explain why it is used. so basically when we create dif…
Adding OpenAPI Support to Mummy, a Nim HTTP Framework
Nim doesn't have a lot of options for building HTTP APIs with the kind of batteries-included developer experience you get in frameworks like FastAPI…