Creating gRPC services
To implement a gRPC service for the Codebreaker.Live project, create the GRPCLiveGameService class:
Codebreaker.Live/Endpoints/GRPCLiveGameService.cs
using Codebreaker.Grpc;
using Google.Protobuf.WellKnownTypes;
using Grpc.Core;
namespace Codebreaker.Live.Endpoints;
public class GRPCLiveGameService(
  IHubContext<LiveHub> hubContext,
  ILogger<LiveGameService> logger) :
    ReportGame.ReportGameBase
{
  async public override Task<Empty> ReportGameCompleted(
    ReportGameCompletedRequest request,
    ServerCallContext context)
  {
    logger.LogInformation("Received game ended {type} " +
      "{gameid}", request.GameType, request.Id);
    await hubContext.Clients.Group(request.GameType)
      .SendAsync("GameCompleted...
