NomNomNow
Serverless food delivery backend architecture using AWS Lambda, DynamoDB, API Gateway, Cognito, and real-time order workflow patterns.
Designed a complete cloud-backed ordering system with serverless deployment and API architecture.
NomNomNow is a serverless food delivery backend architecture built on AWS. This cloud computing project demonstrates modern serverless patterns for high-scale, cost-effective web applications.
The system handles restaurant management, order processing, and real-time delivery tracking without any server management. Lambda functions scale automatically from zero to thousands of concurrent executions.
Tech Stack
Key Features
- RESTful API for all food ordering operations
- Restaurant and menu management system
- Order processing with status tracking
- User authentication and session management
- Real-time order updates via WebSocket
- Cost-optimized serverless architecture
- Infrastructure as Code with CloudFormation
Technical Highlights
- AWS Lambda functions with TypeScript
- DynamoDB single-table design pattern
- API Gateway with request validation
- Cognito for user authentication
- Step Functions for order workflow orchestration
- CloudWatch for monitoring and alerting
Architecture
API Layer
- API Gateway REST endpoints
- Lambda authorizers for JWT validation
- Request/response schema validation
- CORS configuration for web clients
Data Layer
- DynamoDB with GSI for query flexibility
- Single-table design for efficient access patterns
- TTL for automatic order history cleanup
- DynamoDB Streams for real-time updates
Challenges & Solutions
Designing efficient DynamoDB access patterns
Managing cold starts for optimal user experience
Implementing idempotent order processing
Cost optimization while maintaining performance