Let's build a multi-vendor E-Commerce SaaS by using Microservice Architecture, ImageKit | part (1/3)

Welcome to Part 1 of the most advanced developer series on YouTube. We’re building a fully functional, real-world multi-vendor E-Commerce SaaS just like Shopify or Amazon using Microservice Architecture, modern tools, and a clean developer experience. Timestamps 00:00 Cinematic intro 00:49 Full application demo 36:24 Technologies overview 01:01:14 Setting up monorepo using NX 01:29:28 Custom error handler setup 01:42:39 Authentication: register, login, OTP management 02:47:38 Forgot password, reset password, alias bug fixing 04:01:19 Setting up user UI and header component 04:41:45 User authentication (frontend implementation) 06:34:38 Seller authentication UI (frontend) 06:56:16 Seller authentication backend routes 07:37:30 Connecting Stripe for seller onboarding 08:01:24 Seller login and dashboard sidebar 08:50:11 Product creation UI 10:46:14 Discount code creation and deletion (UI + backend) 11:32:16 Finishing create product feature 12:55:22 Fetching all seller products and delete product Useful Links: ImageKit registration link: https://bit.ly/4hdfwDc ImageKit documentation link: https://bit.ly/3Xuv922 Full Source code: https://becodemy.com/source-codes/lets-build-a-multi-vendor-ecommerce-saas-by-using-microservice-architecture Kafka registration link: https://www.confluent.io/ Redis registration link: https://upstash.com/ In this episode, we lay the foundation of our SaaS platform, focusing on: ✅ Setting up the core microservices ✅ Scalable architecture design patterns ✅ Using ImageKit for blazing-fast image delivery and real-time optimization ✅ Integrating real services from day one (not dummy placeholders!) ✅ Clean code practices for production-level projects 🧠 What You’ll Learn in This Series Microservice architecture for eCommerce (auth, product, seller, orders, etc.) Event-driven communication using Kafka API gateway + service registry Stripe Connect for multi-vendor payments Real-time analytics with WebSocket Role-based authentication & permissions Image & media handling with ImageKit Docker, CI/CD, and production deployment tips 🎯 This isn't just a tutorial. It’s a complete developer journey into building a real SaaS business from the ground up — the type you can scale, sell, or even raise investment for. 💬 Drop your questions in the comments — I’ll be replying to every dev who’s serious about leveling up their skills. 🔥 Stay tuned for Part 2 where we go deeper into advanced service integration, user flows, and payment architecture. 📢 Like, Subscribe & Turn on Notifications — this series is going to break the internet. For business inquiries: [email protected] #becodemy #microservice #nodejs #kafka #docker