gRPC - Reply with Array-CodePudding

I'm trying to figure out how to properly pass an array in a server response in gRPC.

In proto (after reading the google documentation) i did:

message HelloReply {
  repeated string message = 1;
}

in service method:

public override Task<HelloReply> SayHello(HelloRequest request, ServerCallContext context)
{
   return Task.FromResult(new HelloReply
   {
      Message = //myArray in foreach with replys = myArray.Length? 
   });
}

What i must to do here? Stream? But what should it look like?

I easily implemented this in the WCF, but with gRPS I ran into a wall. I have not found a basic implementation of such tasks anywhere, except for passing one string (by default in the c# template).

p.s. maybe there is some book with implementation examples in c# or something like that (except for the official documentation)?

CodePudding user response：

I don't have my dev machine on me right now, but this is roughly what you do yo populate a repeated protobuf field. I believe this is what you were after based on the comments in your code.

HelloReply reply = new HelloReply();
foreach(var rep in myArray)
{
   reply.Message.Add(rep);
}
return Task.FromResult(reply);

If this is not what you are after let me know.

CodePudding user response：

Well, If you want to pass the array into gRPC Response, you can probably serialize it into JSON String and pass it as a string to the response and decode it at the destination.