```json //[doc-seo] { "Description": "Learn effective strategies for interservice communication in microservices, covering both synchronous and asynchronous messaging patterns." } ``` # Communications Between Microservices There are two basic messaging patterns for communication between two microservices: ## Synchronous Communication In this pattern, a service calls an API that another service exposes, using a protocol such as HTTP or gRPC. This option is a synchronous messaging pattern because the caller waits for a response from the receiver. ## Asynchronous Communication In this pattern, a service sends message without waiting for a response, and one or more services process the message asynchronously. This is done by using a message broker or event bus. Further information check out https://docs.microsoft.com/en-us/azure/architecture/microservices/design/interservice-communication ## See Also - [Synchronous Communication](synchronous-interservice-communication.md) - [Asynchronous Communication](asynchronous-interservice-communication.md)