Things like grpc and GraphQL seem to be the descendants of SOAP/WSDL. GraphQL is quite nice as it kind of has the best of both worlds: a strongly typed schema

Things like grpc and GraphQL seem to be the descendants of SOAP/WSDL. GraphQL is quite nice as it kind of has the best of both worlds: a strongly typed schema for data and operations, while being fairly close to a simple JSON/HTTP API.