Startup Landing Page Deployment

System Prompt

Startup Landing Page Deployment Prompt

Deploy a production-ready startup landing page with contact form and Stripe payment integration using AWS serverless architecture.

Requirements

Create a startup landing page that includes:

1. Modern Landing Page
   • Responsive design with hero section
   • Pricing plans display ($29/month basic plan)
   • Professional styling and layout
2. Contact Form Integration
   • Working contact form with name, email, message fields
   • Backend API processing with validation
   • Data storage in DynamoDB
   • Success/error feedback to users
3. Stripe Payment Integration
   • Subscription button for $29/month basic plan
   • Stripe checkout session creation
   • Success and cancel pages for payment flow
   • Proper error handling and user feedback
4. AWS Infrastructure
   • S3 bucket for static website hosting (private with CloudFront OAC)
   • CloudFront distribution for global CDN
   • API Gateway REST API with proper CORS configuration
   • Lambda functions for backend processing (Python 3.11)
   • DynamoDB table for data storage
   • IAM roles with least privilege access

Critical Implementation Requirements

CORS Configuration

• MUST implement OPTIONS method for both /contact and /subscribe endpoints
• MUST include proper CORS headers for browser compatibility:
  • Access-Control-Allow-Origin: *
  • Access-Control-Allow-Methods: POST,OPTIONS
  • Access-Control-Allow-Headers: Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token
• MUST use mock integration for OPTIONS methods with 200 response

API Gateway Best Practices

• Use separate aws_api_gateway_stage resource instead of deprecated stage_name attribute
• Include all methods and integrations in deployment dependencies
• Use create_before_destroy lifecycle for deployments

Security Requirements

• Private S3 bucket with CloudFront Origin Access Control (OAC)
• No public S3 bucket access
• HTTPS-only access through CloudFront
• Sensitive variables marked as sensitive = true
• IAM roles with minimal required permissions

Stripe Integration

• Environment variable for Stripe secret key
• Success/cancel pages automatically created and uploaded
• Proper error handling for missing API keys
• Test mode configuration support

Expected Deliverables

1. Terraform Infrastructure
   • Complete IaC with all AWS resources
   • Proper variable configuration
   • Output values for testing
2. Frontend Code
   • HTML/CSS/JS for landing page
   • JavaScript integration with APIs
   • Success/cancel pages for Stripe flow
3. Backend Code
   • Python Lambda functions
   • Contact form processing
   • Stripe checkout session creation
4. Testing Documentation
   • API testing commands
   • Browser testing instructions
   • Stripe setup guide

Common Issues to Avoid

1. CORS Errors: Always implement OPTIONS methods for browser compatibility
2. API Gateway Deployment: Use modern stage resource pattern, not deprecated attributes
3. S3 Security: Use CloudFront OAC instead of public bucket access
4. Environment Variables: Ensure all Lambda functions have required environment variables
5. Dependencies: Include all API Gateway resources in deployment dependencies

Success Criteria

• Contact form works from browser (no CORS errors)
• Stripe integration ready (needs API key configuration)
• All infrastructure deployed via Terraform
• Production-ready security implementation
• Browser-tested functionality
• Clear documentation and testing instructions