CORS in Node.js: Complete Guide to Cross-Origin Resource Sharing
Master CORS in Node.js. Learn why it exists, how to configure it properly, set up dynamic CORS, test CORS issues, and understand the security protections it provides.

Full Stack Developer
React & Next.js · Node.js & Serverless · AWS · Fintech & Blockchain
I’m a Full Stack Developer with 7+ years of experience owning features from zero to production—React and Next.js on the frontend, microservices and serverless backends on Node.js, and AWS (EC2, Lambda, Amplify, Cognito) in production.
I’ve led delivery for small teams, shipped blockchain and fintech products, and built data-intensive systems that pull from multiple sources and land in audit-ready workflows. I take individual responsibility for shipping while helping teammates move faster.
Outside of code, I recharge by traveling, exploring nature, and spending time with my kid—my best source of inspiration.
Master CORS in Node.js. Learn why it exists, how to configure it properly, set up dynamic CORS, test CORS issues, and understand the security protections it provides.
Secure your production code with proper variable definitions. Learn about 'as const', Object.freeze(), and other techniques to prevent bugs and security issues.
Reactivate (Via APN Consulting)
Blockpeer Finance
Stealth Startup (Switzerland)
IVP
Sharda University
2014 - 2018