Mushroom
This project pairs a Shopify storefront brand presence with a custom NestJS (TypeScript) backend for operations. The operations/admin backend uses PostgreSQL via TypeORM, implements role-based access control (ADMIN/FARMER/MANUFACTURER/PACKAGER) with JWT auth, and enforces a FIFO batch allocation system (no order splitting across batches). It integrates Shopify orders + webhooks and tracks a stage-based production workflow from cultivation to shipping with sequential enforcement. Notifications are delivered via AWS SES (email) and AWS SNS (SMS), and local ops use Docker Compose (Postgres + pgAdmin). The public storefront emphasizes Lion’s Mane tinctures/powders/coffee and uses QR-code traceability (“born-on date”).

Tech stack
Challenges
- •Enforcing strict business rules around FIFO allocation and stage progression across roles
- •Integrating external commerce systems (Shopify) safely with webhooks and syncing
- •Delivering reliable notification flows (email + SMS) and operational observability
Solutions
- •Implemented role-based authorization and sequential stage validation per batch workflow
- •Built Shopify integration flows (webhooks + product/order fetch/sync scripts) with clear DTOs and routing
- •Integrated AWS SES/SNS for notifications, plus Swagger docs and health checks for operations
Impact
Operationally sound admin backend for inventory, order fulfillment, and production tracking
Clear separation of roles and responsibilities across the workflow lifecycle
Production-friendly deployment and local tooling via Docker Compose
Screenshots

Project details
- Role
- Backend Developer
- Category
- Operations / Admin System
- Scope
- Backend system