grpc1.45.2/examples/csharp/Xds/GreeterClient/Program.cs

// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using System;
using Grpc.Core;
using Helloworld;
using CommandLine;

namespace GreeterClient
{
    class Program
    {
        private class Options
        {
            [Option("server", Default = "localhost:30051", HelpText = "The address of the server")]
            public string Server { get; set; }
        }

        public static void Main(string[] args)
        {
            Parser.Default.ParseArguments<Options>(args)
                   .WithParsed<Options>(options => RunClient(options));
        }

        private static void RunClient(Options options)
        {
            Channel channel = new Channel(options.Server, ChannelCredentials.Insecure);

            var client = new Greeter.GreeterClient(channel);
            String user = "you";

            var reply = client.SayHello(new HelloRequest { Name = user });
            Console.WriteLine("Greeter client received: " + reply.Message);

            channel.ShutdownAsync().Wait();
            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();
        }
    }
}