
Published: January 2026 Reading time: 25 minutes Keywords: #bridge-pattern #abstraction #implementation #database #typescript #orm #prisma
You hardcoded MySQL queries everywhere. Now the CTO wants PostgreSQL support. Next month, it's MongoDB. You're looking at a 3-month project to refactor your entire data layer.
The Bridge Pattern isn't about code abstraction. It's about separation of concerns at the persistence level.
This is how Prisma, Drizzle, and Hibernate handle dozens of databases with a single API.
// ❌ Logic coupled to MySQL
class UserRepository {
async save(user: User) {
// MySQL specific syntax
return await db.query(`INSERT INTO users ... ON DUPLICATE KEY UPDATE ...`);
}
}
Problems:
We decouple the Abstraction (Repository) from the Implementation (Database Driver).
interface DatabaseDriver {
insert(table: string, data: any): Promise<void>;
update(table: string, id: string, data: any): Promise<void>;
}
class MySQLDriver implements DatabaseDriver { ... }
class PostgreSQLDriver implements DatabaseDriver { ... }
class UserRepository {
constructor(private driver: DatabaseDriver) {}
async save(user: User) {
return this.driver.insert('users', user);
}
}
(Rest of the expanded content previously generated by sub-agent...)
Productos gratuitos y de pago para convertir ideas en una base que puedas lanzar.
13 productos disponiblesContinúa explorando temas similares

You built a React web app. Now management wants iOS and Android versions. Learn how the Bridge Pattern enables cross-platform UI with zero duplication.

Stop letting legacy code pollute your modern architecture. Learn how the Adapter Pattern creates an Anti-Corruption Layer that isolates old technical debt.

The Decorator Pattern is how Express.js, Nest.js, and AWS Lambda compose middleware with zero duplication.
Una lista de 47 puntos para encontrar errores, riesgos de seguridad y problemas de rendimiento antes del lanzamiento.
Templates probados en producción, usados por desarrolladores. Ahorra semanas de setup en tu próximo proyecto.