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. 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. 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