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This is a summary of the full tutorial published on howtostartprogramming.in. TLDR: Building a ReAct Agent from Scratch with LangChain 2026 In this b
Need Help with Python Scripts or Terminal Setup? Let's Troubleshoot. Hey everyone, If you are currently learning Python, developing backen
This guarantees that 1.005 rounds perfectly to 1.01 instead of getting stuck due to binary float representation issues. Optimizing for 100/1
Your Pipeline Is 19.2h Behind: Catching Markets Sentiment Leads with Pulsebit We just stumbled upon a striking anomaly: a 24-hour momentum
When you use Kafka or RabbitMQ, dozens of concepts fly past — partitions, consumer groups, acknowledgments, dead letter queues, backpressure. I wanted
At TrendVidStream we discover streaming-platform titles across eight regions (US, GB, DE, JP, KR, BR, IN, AU) and surface them through a PHP 8.4 front
Exploring Backend Development with Rust and Go: Insights from Web Developer Travis McCracken As a passionate Web Developer specializing in backend sy
One small feature in the Next.js App Router that I think more developers should use is notFound(). A lot of codebases still handle missing data like
A while back I open-sourced a macOS desktop widget for the FIFA World Cup 2026. The question I got most was "when Windows?" — so I ported it. Here's w
Look at your modern Agentic AI stack. An agent wants to execute a tool, trigger a deployment, access a database, or call an external API. Because no
For the past four months, I have been exploring the Spring ecosystem, learning about architectures, design patterns, and how large Java backend system
Spring Security Filter Chain: A Deep Dive for Java Backend Engineers If you've ever wondered what actually happens between the moment an HT
Quark’s Outlines: Python User-Defined Functions Overview, Historical Timeline, Problems & Solutions An Overview of Python User-De
It was 3:17 AM when the pager screamed. Our Rust-based treasure-hunt matchmaking service had been live for six weeks with steady load under 50k concur
LLMs are incredibly smart, but they suffer from a major limitation: they are frozen in time. They don't know today's stock prices, they can't access y
⚠️ 【Draft – Pending Review】 Stop writing useEffect for data fetching. Use Request Strategies instead. I've been a React developer for
When I started building APIs, I spent way too much of my life keeping three things in sync: the actual route code, the validation, and the docs. You c
Basic problem - when you ship a new version, you want users to know and look at what's changed. I will demonstrate a simple pattern you can reuse in
JavaScript Closures Explained Like You're Learning Them for the First Time Have You Ever Wondered How This Works? Imagine you ha
A scraper that returns HTTP 200 is not a scraper that returns good data. Those are two different claims, and almost every monitoring setup I've seen c