SaaS Builder

Core Architecture

• Multi-tenant with tenant isolation at data layer
• Serverless-first: Lambda, API Gateway, DynamoDB
• Integrated billing with Stripe and usage metering
• JWT auth with RBAC
• React + TypeScript frontend with Tailwind CSS

Multi-Tenancy Pattern

• Tenant ID prefix in all DB keys: ${tenantId}#${entityType}#${id}
• Lambda authorizer injects tenant context from JWT
• No cross-tenant data access
• Tenant-specific feature flags and quotas