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Wwloadctlwloadctl.hashnode.dev4d ago · 3 min read

How WLOADCTL manages nodes and users in WLOADCTL Admin module

In the previous post, we walked through the installation of WLOADCTL. But installation is only half the story. Once the system is live, the real work begins: configuring the platform to fit your envir

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ARAzeez Roheemazeezroheem.hashnode.devJul 4 · 13 min read

I Added Production Observability to My AI SaaS in 10 Days. Here's the Full Stack.

I had a working AI SaaS. Then a user emailed me about a bug I didn't know existed. Here's how I fixed that blind spot. A few weeks ago I got an email from someone who'd signed up for Resume AI Tailor.

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KSKanishka Shashinodej.hashnode.devJul 2 · 8 min read

Securing Apps: Password Hashing, RBAC, OAuth, and OpenID Connect

Security is one of those things that's easy to bolt on badly and hard to retrofit well. Most applications end up needing to answer four separate questions: How do we store credentials safely? How do w

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VYVivek Yadavvivek-blogs.hashnode.devJun 28 · 5 min read

Node.js

How was Node.js developed? Node.js was created by Ryan Dahl in 2009 to allow JavaScript to run outside the browser. JavaScript is a programming language that provides core features such as variables,

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JAJimmy A. Magbanualapistry.hashnode.devJun 24 · 7 min read

How I built a billing system with a real double-entry ledger in Node + PostgreSQL

Most billing code has the same bug hiding in it: it stores the account balance as a number and mutates it — balance += amount. It works fine, right up until a payment gets entered twice, or you have t

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SASharafath Alisharafath.hashnode.devJun 8 · 9 min read

My Node.js Server Was Leaking Memory in Production. Here's How I Found It.

Our Node.js server was crashing in production. Not once — every single instance was going down, one after another, and Sentry (logging) was flooding with alerts. We had auto-scaling configured with a

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Aartakulovartakulov.hashnode.devMay 11 · 2 min read

What I learned processing 50+ federal data sources with Node.js

I've been working on a project that pulls environmental data from federal agencies — EPA, FEMA, USGS, CDC, Census, and about 45 others. Some things I ran into that might save you time: Federal APIs are wild No two agencies use the same format. EPA gi...

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SAShahbaz Ahmedknowingnodejsexpress.hashnode.devMay 10 · 5 min read

Handling File Uploads in Express with Multer

File uploads are one of the most common features in modern web applications. Whether users are uploading profile pictures, resumes, documents, videos, or product images, the backend needs a reliable w

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KRkumar Rishabhkumar-rishabh.hashnode.devMay 10 · 3 min read

What is Node.js? JavaScript on the Server Explained

For a long time, JavaScript only lived inside browsers. People used it for: button clicks animations form validation Basically, frontend stuff. But today JavaScript also runs on servers, APIs, da

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ACARKPARAVA CHAKRABORTYunderstand-and-build-in-web.hashnode.devMay 10 · 3 min read

The heartbeat of Node.js: The Event Loop Explained

If you’ve ever wondered how Node.js manages to be incredibly fast despite being "single-threaded," you’ve stumbled upon the engine's greatest secret: The Event Loop. Most traditional servers handle mu

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Trending tags this week

How WLOADCTL manages nodes and users in WLOADCTL Admin module

I Added Production Observability to My AI SaaS in 10 Days. Here's the Full Stack.

Securing Apps: Password Hashing, RBAC, OAuth, and OpenID Connect

Node.js

How I built a billing system with a real double-entry ledger in Node + PostgreSQL

My Node.js Server Was Leaking Memory in Production. Here's How I Found It.

What I learned processing 50+ federal data sources with Node.js

Handling File Uploads in Express with Multer

What is Node.js? JavaScript on the Server Explained

The heartbeat of Node.js: The Event Loop Explained