NestJS integrates seamlessly with relational and NoSQL databases through TypeORM, Prisma, Mongoose, and Sequelize. Clean repository patterns keep data access testable and maintainable.
TypeORM Integration
@nestjs/typeorm provides entity decorators, repositories, and query builders for PostgreSQL, MySQL, MariaDB, and SQLite. Entities map directly to database tables with relationships, indexes, and cascading rules.
Prisma and Modern ORM Options
Prisma offers type-safe database access with auto-generated client code. Teams choose Prisma for strict typing, migration workflows, and excellent developer experience in TypeScript projects.
Migrations and Transactions
Database migrations version-control schema changes across environments. NestJS services use transactions for financial operations, inventory updates, and multi-table writes that must succeed or roll back together.
- TypeORM entities, repositories, and relations.
- Prisma for type-safe queries and migrations.
- PostgreSQL, MySQL, and MongoDB support.
- Transaction management for critical workflows.
- Connection pooling and read replicas.
Aadyanex builds NestJS backends with optimized database schemas, migrations, and integration with Odoo ERP and third-party systems.