Platform Architecture
A multi-vendor marketplace requires: Buyer Portal, Seller Portal, Admin Panel, Product Catalog Service, Order Management, Payment & Payout Service, and Review System. Separate the seller onboarding flow from the buyer experience to allow independent scaling.
Vendor Management System
Sellers need: product listing with bulk upload, inventory management, order notifications, shipping label generation, and performance analytics. Implement a seller verification system (GST number, bank account, address proof) before allowing listings to prevent fraud.
Commission & Payout System
Define commission structures by category (Electronics: 5%, Fashion: 15%, etc.). Use Razorpay Route or PayU PayOut for automatic commission deduction and seller payout. Settlement cycles in India typically work on T+2 or T+7 basis. Provide detailed payout reports to sellers.
Product Catalog Management
Multi-vendor catalogs grow exponentially. Implement Elasticsearch for fast search and filtering across millions of products. Use a CDN for product images. Implement duplicate product detection to prevent multiple sellers from creating separate listings for the same product.
Performance at Scale
Indian e-commerce platforms experience massive traffic spikes during sales events. Implement Redis caching for product pages, database read replicas for catalog queries, lazy loading for images, and a CDN for static assets. Target sub-2-second page loads — every 100ms delay reduces conversion by 1%.
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