When I looked into Thrift's generated code for Objective-C when we started working on gRPC (so 2014), RPCs were all blocking, which made for a non-idiomatic API

When I looked into Thrift's generated code for Objective-C when we started working on gRPC (so 2014), RPCs were all blocking, which made for a non-idiomatic API. I haven't looked if they've added an asynchronous version since.