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ASAbhijeet Shindeweeklyupdate.hashnode.dev20h ago · 10 min read

How HTTP Works: What Happens After DNS Hands You an IP

1. Why This Topic Matters The last post ended on a promise: once DNS resolves a name to an IP, what actually happens next? Every post in this series up to now — TCP, UDP, and finally DNS — has been ab

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AAbhishekdesirarman.hashnode.dev1d ago · 20 min read

Building a Single-Node Rate Limiter with Redis in Node.js

Introduction Rate limiting is a way of controlling how frequently a client can access an API. Without rate limiting, a single client could send a large number of requests in a short period of time. Th

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AOAarogya Ojhaaarogyaojha.hashnode.dev2d ago · 5 min read

The Architecture Decision Everyone Overthinks

There's a moment in almost every growing codebase where someone asks: "should we break this into microservices?" It's usually asked right after a deploy goes wrong, or right after someone reads a blog

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BWBlogs Worldankitkhoiwal.hashnode.dev4d ago · 15 min read

From 102 Queries to 3: A Better Way to Fix Laravel N+1 Problems

A Laravel page can feel perfectly fast in development and still become painfully slow after real data arrives. That is what makes N+1 problems annoying. They rarely look like bugs. Nothing crashes. No

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ASAbhijeet Shindeprojectlog.hashnode.dev5d ago · 6 min read

Audio, Subtitles, and the Backend Nobody Sees An update from Building a Distributed Media Platform from Scratch

Direct-to-S3 ended with the next piece being background processing — making sure a completed upload reliably becomes a watchable title. This post is that piece, and it turned into more than "reliably

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DHDeploy Hatchdeployhatch.hashnode.dev4d ago · 7 min read

Keeping Docker Containers Running When a Deployment Worker Restarts

When you first build a deployment system, it's easy to accidentally tie the lifetime of a workload to the lifetime of the process managing it. A worker starts. It receives a deployment job, builds the

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AVAntoine Valtonvirtuprobe.hashnode.dev5d ago · 8 min read

How to Test an Email Verification Flow End to End

An email-verification feature can return 200 OK and still be broken. The signup endpoint may accept the request while the message is never delivered. The email may arrive with the wrong token. The v

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MMoliydigitalinfrastructure.hashnode.dev5d ago · 6 min read

How TradFi Infrastructure Is Becoming More Software-Defined

SubtitleFrom batch settlement and siloed systems to APIs, event-driven workflows, and programmable financial infrastructure. Traditional finance has always depended on software. Banks run on databases

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DJDevanupriy Jaindevanu.hashnode.dev5d ago · 2 min read

Building CityScale 🏙️ — Engineering a City-Scale Logistics System

What started as an idea to simulate urban parcel distribution turned into CityScale — a full-stack logistics platform for modelling deliveries, locations, routes, and distribution workflows. 🏗️ Archi

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EGEliran Godovelirangodov.hashnode.dev6d ago · 7 min read

Accepted Isn't Delivered: What WhatsApp API Status Codes Actually Tell You

If you've built any kind of WhatsApp automation, you've probably had this moment: your code calls the WhatsApp Business API, gets back an HTTP 200 and a message ID, logs "message sent," and moves on.

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Trending tags this week

How HTTP Works: What Happens After DNS Hands You an IP

Building a Single-Node Rate Limiter with Redis in Node.js

The Architecture Decision Everyone Overthinks

From 102 Queries to 3: A Better Way to Fix Laravel N+1 Problems

Audio, Subtitles, and the Backend Nobody Sees An update from Building a Distributed Media Platform from Scratch

Keeping Docker Containers Running When a Deployment Worker Restarts

How to Test an Email Verification Flow End to End

How TradFi Infrastructure Is Becoming More Software-Defined

Building CityScale 🏙️ — Engineering a City-Scale Logistics System

Accepted Isn't Delivered: What WhatsApp API Status Codes Actually Tell You