REST API Backend

Architecture

Build serverless REST APIs using Lambda as the compute layer:

• API Gateway for HTTP routing and request validation
• Lambda for business logic and data processing
• DynamoDB for data persistence

When to Use

This pattern is ideal when you need:

• APIs with variable or unpredictable traffic
• Cost optimization for low-traffic applications
• Rapid development without infrastructure management
• Automatic scaling during traffic spikes

Considerations

• Cold start latency may affect response times
• Execution time limited to 15 minutes
• Stateless design required