gRPC setup is an essential step to allow performant communication between microservices and before moving onto the next part where we will be adding the notification microservice. 0:00 intro 5:28 add the protobuf and RPC definitions 8:00 compile protobufs and RPCs 10:09 set up and register our server with the gRPC server 14:58 set up gRPC client on ecomm-api microservice 16:57 implement RPCs on our server 22:24 modify handler to use gRPC client 27:06 test the microservices