APIComposition

What is the Database-per-Service Pattern in Microservices?

The database-per-service pattern means each microservice owns its own private database that no other service is allowed to access directly, so services communi…

API Composition vs Database Joins: How Do They Differ?

A database join combines rows from multiple tables in a single database engine using one SQL statement, while API composition assembles a result by calling mul…

What is the API Composition Pattern?

API composition is a query pattern where a dedicated composer (an API gateway, BFF, or aggregator service) invokes several microservices in parallel or sequenc…

What is the Backend for Frontend (BFF) Pattern?

The Backend for Frontend (BFF) pattern gives each distinct client type — web, mobile, third-party partner — its own dedicated backend layer that shapes, aggreg…