Protocol Buffer Services

Internal

Protocol Buffers can define services that use messages to exchange data.

A service is a set of endpoints, introduced by the rpc keyword, with different semantics that can be used to call into the service, by sending a request, and then receiving a response.

service SomeService {
  rpc SomeEndpoint(SomeRequest) returns (SomeResponse);
  rpc SomeOtherEndpoint(SomeOtherRequest) returns (SomeOtherResponse);
}

message SomeRequest {
  ...
}

message SomeResponse {
  ...
}

message SomeOtherRequest {
  ...
}

message SomeOtherResponse {
  ...
}

This is how you define an API.

The service and the client code is generated by a framework, and the preferred one is gRPC.

gRPC and Protocol Buffer Services