Grocup

Context

Grocup lets grocery and retail sellers sign up, pick a plan and get their own online store at <store>.grocup.com, with a seller dashboard and an ERP sync API.

What I built

1. 01Database-per-tenant on PostgreSQL: seller sign-up provisions a new database and runs its schema in a transaction
2. 02Per-tenant connection pools routed by subdomain, with a shared common database for sellers, plans and config
3. 03ERP integration API for brands, categories and products with key/secret authentication
4. 04Razorpay orders and seller subscriptions; order PDFs and emails via Mustache + wkhtmltopdf
5. 05Storefront with Google Maps address picking, voice search and i18n; seller panel with staff roles, CMS pages, pincodes and delivery slots