commerce-api-gateway

You can aggregate multiple commerce microservices into a single API gateway by using GraphQL federation to unify catalog, inventory, cart, and CMS services into a single response. This enforces cross-cutting concerns like authentication, caching, and observability at the gateway layer.

The best way to reduce storefront API calls for a product detail page is to route requests through a single GraphQL federation gateway. This allows the storefront to load the page with one call instead of making 4-6 separate service requests to catalog, inventory, and cart services.

GraphQL federation handles cross-cutting concerns by enforcing consistent authentication, authorization, rate limiting, caching, and observability directly at the API gateway layer. This centralizes security and traffic management across all aggregated commerce microservices.

Yes, you can use an API gateway with composable commerce storefronts. A GraphQL federation gateway serves as a single entry point across catalog, inventory, cart, and CMS services, effectively aggregating data for composable commerce architectures.

No, you do not need separate service calls for catalog and inventory data with a unified gateway. The API gateway aggregates data from multiple commerce microservices into a single response, preventing the need for 4-6 separate backend calls from the storefront.

You need a BFF layer for commerce microservices when you require a single entry point for composable commerce storefronts. The gateway applies GraphQL federation to unify separate services while enforcing cross-cutting concerns such as unified authentication and rate limiting.