Multi-Tenant API
REST API with database-per-tenant isolation using NestJS, MongoDB, and CQRS.
Role
Implementer ImplementadorProblem
Isolate tenant data completely while sharing application code and deployment. Aislar datos por tenant manteniendo código y despliegue compartidos.Impact
Connection pooling per tenant, middleware routing, and CQRS read/write separation. Pool de conexiones por tenant, middleware de enrutamiento y separación CQRS lectura/escritura.Technical stack
Layer-by-layer breakdown of subsystems, repositories, and production concerns.
Tenant resolution middleware Middleware de resolución de tenant
Extracts tenant identity from JWT, subdomain, or headers and attaches context to each request. Extrae identidad de tenant desde JWT, subdominio o headers y adjunta contexto a cada request.
- Single codebase serves many isolated customers Un solo codebase sirve muchos clientes aislados
Database-per-tenant isolation Aislamiento database-per-tenant
Dynamic MongoDB connections pooled per tenant — no shared collections across customers. Conexiones MongoDB dinámicas con pool por tenant — sin colecciones compartidas entre clientes.
- Strong data boundaries for SaaS compliance Límites de datos fuertes para cumplimiento SaaS
CQRS command & query paths Rutas CQRS command y query
Separate handlers for writes vs reads — optimize each side without breaking the other. Handlers separados para escrituras vs lecturas — optimizar cada lado sin romper el otro.
- Thin controllers delegating to use cases Controllers delgados delegando a use cases
Dockerized deployment Despliegue dockerizado
Compose-ready stack for local multi-tenant testing and repeatable environment setup. Stack listo para Compose con pruebas multitenant locales y entorno repetible.
- Reference implementation for tenant routing patterns Implementación de referencia para routing multitenant
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