Table of Contents

1. Challenge

   Creating a Message

   In gRPC, each service starts with defining messages with the message keyword. A message can take one or more properties to make up the data in the message. For each property, you must define an ordinal position. Typically this is numbered from the number one up.

   Let's give it a try:

2. Challenge

   Creating the Service

   Now that you have defined the messages, we can define the service as well.

   Let's give it a try: Now that you're done. Please move onto the next Practice Lab! Great Job!

   Solution!

   
   syntax = "proto3";
   option csharp_namespace = "GrpcChat.ProtoBuf";
   package chat;
   service ChatService {
   rpc Send(Chat) returns (ChatResult);
   }
   message Chat {
   string Body = 1;
   string UserId = 2;
   }
   message ChatResult {
   bool Success = 1;
   string Error = 2;
   }