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Developer Toolkit

Serverless Development Patterns

Accelerate serverless development with Cursor IDE and Claude Code. These patterns cover AWS Lambda, Vercel, Cloudflare Workers, event-driven architectures, and cloud-native best practices optimized for AI-assisted development.

Serverless Fundamentals

Section titled “Serverless Fundamentals”

Quick Start with Serverless

Section titled “Quick Start with Serverless”
  1. Open Cursor in your workspace
  2. Launch Agent mode (Cmd/Ctrl + I)
  3. Prompt: “Create serverless project with:
    • AWS Lambda functions
    • API Gateway integration
    • DynamoDB tables
    • CloudFormation/SAM
    • TypeScript support
    • Local development setup”
  4. Agent sets up complete serverless environment

AWS Lambda Patterns

Section titled “AWS Lambda Patterns”

Function Design

Section titled “Function Design”
// Lambda function prompt:
"Create Lambda function for image processing:
- S3 trigger for uploads
- Image resizing with Sharp
- Multiple output formats
- Error handling and retries
- CloudWatch logging
- X-Ray tracing"


// Generated structure:
functions/
  imageProcessor/
    handler.ts
    config.yml
    tests/
  shared/
    utils/
    types/

Lambda Best Practices

Section titled “Lambda Best Practices”

Cold Start Optimization 

// Prompt: "Optimize Lambda cold starts:
// - Minimize bundle size
// - Lazy loading
// - Connection pooling
// - Provisioned concurrency"

Error Handling 

// Prompt: "Add Lambda error handling:
// - Dead letter queues
// - Retry policies
// - Circuit breakers
// - Graceful degradation"

Vercel Functions

Section titled “Vercel Functions”

Edge Functions

Section titled “Edge Functions”
// Vercel Edge function prompt:
"Create Vercel Edge function for:
- Geographic routing
- A/B testing
- Request transformation
- Authentication at edge
- Response caching
- Streaming responses"

API Routes

Section titled “API Routes”
// Next.js API route:
"Create API route with:
- Request validation
- Database connection
- Rate limiting
- CORS handling
- Error responses"

Cloudflare Workers

Section titled “Cloudflare Workers”

Worker Patterns

Section titled “Worker Patterns”
// Cloudflare Worker prompt:
"Create Worker for API gateway:
- Request routing
- Authentication
- Rate limiting with Durable Objects
- Cache API usage
- KV storage integration
- R2 bucket access"

Durable Objects

Section titled “Durable Objects”
  1. Design State: “Create Durable Object for WebSocket rooms”
  2. Implement Logic: “Add room management and messaging”
  3. Scale Strategy: “Configure geographic distribution”
  4. Monitor: “Add analytics and debugging”

Event-Driven Architectures

Section titled “Event-Driven Architectures”

Event Processing

Section titled “Event Processing”
// Event-driven prompt:
"Design event processing system with:
- SNS/SQS integration
- Event routing rules
- Schema validation
- Dead letter handling
- Event replay capability
- Monitoring and alerting"

Event Patterns

Section titled “Event Patterns”

Event Sourcing

Implement with AI:

  • Event store design
  • Event versioning
  • Projection building
  • Snapshot creation
  • Event replay logic

Serverless Databases

Section titled “Serverless Databases”

DynamoDB Patterns

Section titled “DynamoDB Patterns”
// DynamoDB design prompt:
"Design DynamoDB schema for:
- Single table design
- GSI optimization
- Composite keys
- Transactions
- Streams processing
- Auto-scaling"

Database Integration

Section titled “Database Integration”
-- Aurora Serverless:
"Configure Aurora Serverless v2:
- Connection pooling
- Data API usage
- Scaling policies
- Backup strategies"

API Gateway Integration

Section titled “API Gateway Integration”

REST API Setup

Section titled “REST API Setup”