Posted inLinux
Managing Node.js, Python, and Go with asdf-vm: Goodbye Version Manager Mess
Manage Node.js, Python, Go, and many other languages with just a single asdf-vm tool on Linux. The perfect alternative to nvm, pyenv, and rbenv.
Posted inFedora
Installing Node.js and PM2 on Fedora Server: Deploying JavaScript Applications in Production with SELinux and firewalld
A step-by-step guide to installing Node.js and PM2 on Fedora Server and properly handling SELinux and firewalld to deploy JavaScript applications in production. Covers SELinux port labeling, network connect boolean, PM2 cluster mode, and systemd integration.
Posted inDevelopment
Secure Webhooks in Node.js: HMAC-SHA256 Verification and Proper Retry Handling
An unauthenticated webhook is an easy target for forged requests — this article covers how to protect a Node.js endpoint with HMAC-SHA256, handle idempotency to prevent duplicate processing on retries, and implement exponential backoff when calling downstream services. Includes complete working code and curl commands to test immediately.
Posted inMySQL
Connecting MySQL in Node.js with mysql2: Connection Pooling, Prepared Statements, and Transactions
A guide to connecting MySQL in Node.js with the mysql2 library the right way, avoiding the common mistakes junior developers make. Learn how to use Connection Pooling for performance optimization, Prepared Statements to block SQL Injection, and Transactions to ensure data integrity when operating across multiple tables simultaneously.
Posted inMonitoring
How to Install and Configure Grafana Beyla: Automatic Application Monitoring Without Code Changes Using eBPF for Go, Python, and Node.js
Grafana Beyla uses eBPF to automatically collect metrics and traces from Go, Python, and Node.js applications — no code changes, no SDK installation required. This post walks through installing and configuring Beyla, and shares real-world results after 6 months running on production with Prometheus + Grafana.
Posted inDatabase
MongoDB Change Streams in Node.js: Real-Time Data Change Tracking
MongoDB Change Streams let your Node.js application listen for data changes in real time instead of polling. This article covers practical implementation, resume token handling, and safe reconnect strategies for production environments.
Posted inMonitoring
Monitoring Node.js Applications with prom-client: Request Rate, Latency, and Custom Business Metrics in Real Time
A guide to integrating prom-client into a Node.js Express app to expose HTTP metrics for Prometheus and Grafana, covering request rate, P95 latency, error rate, and custom business metrics. Compares monitoring approaches and walks through each step from installation to dashboard creation.
Posted inDevelopment
Building Efficient RESTful APIs with Node.js and Express: Design, Authentication, and Versioning
After 6 months running a Node.js/Express API in production, this post distills what actually matters: structuring routes properly for REST, validating input with Joi, JWT authentication, and managing versioning so you never have to break existing clients.
Posted inSecurity
REST API Security: Don’t Let Your System Crash Due to Basic Mistakes
Don't let your API be a gateway for hackers. Learn how to properly implement JWT, RBAC, and Data Validation to protect your entire system.
Posted inUbuntu
How to Install Node.js and npm on Ubuntu (2024 Guide)
Looking for a professional way to install Node.js and npm on Ubuntu? This article provides a detailed guide on 3 methods: NVM, NodeSource PPA, and the default repository, and also shows you how to use PM2 to manage your applications.