static async Task InvorkeGrpcServerStream(GrpcChannel channel)
{
// The port number(5001) must match the port of the gRPC server.
var client = new Greeter.GreeterClient(channel);
var cts = new CancellationTokenSource(TimeSpan.FromDays(2));
var request = new HelloRequest {
Name = "Hello stream server"
};
using AsyncServerStreamingCall <HelloReply> streamingCall =
client.SayHelloServerStream(request, cancellationToken: cts.Token);
try
{
await foreach (HelloReply response in streamingCall.ResponseStream.ReadAllAsync(cancellationToken: cts.Token))
{
Console.WriteLine(response.Message);
//Console.WriteLine($"{response.DateTimeStamp.ToDateTime():s} | {response.Summary} | {response.TemperatureC} C");
}
}
catch (RpcException ex) when(ex.StatusCode == StatusCode.Cancelled)
{
Console.WriteLine("Stream cancelled.");
}
}
static async Task run1()
{
////http1方式要加下面这个段，不然有异常
//AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);
var channel = GrpcChannel.ForAddress("http://localhost:50051");
var helloClient = new Greeter.GreeterClient(channel);
Console.WriteLine("一元调用开始-------");
//一元调用(同步方法）
Console.WriteLine("发送：一元同步调用");
var reply = helloClient.SayHello(new HelloRequest {
Name = "一元同步调用"
});
Console.WriteLine($"{reply.Message}");
//一元调用(异步方法）
Console.WriteLine("发送：一元异步调用");
var reply2 = helloClient.SayHelloAsync(new HelloRequest {
Name = "一元异步调用"
}).GetAwaiter().GetResult();
Console.WriteLine($"{reply2.Message}");
Console.WriteLine("一元调用结束-------");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("服务端流开始-------");
//服务端流
Console.WriteLine("发送：服务端流");
var reply3 = helloClient.SayHelloServerStream(new HelloRequest {
Name = "服务端流"
});
while (await reply3.ResponseStream.MoveNext())
{
Console.WriteLine(reply3.ResponseStream.Current.Message);
}
Console.WriteLine("服务端流结束-------");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("客户端流开始-------");
//客户端流
using (var call = helloClient.SayHelloClientStream())
{
for (var i = 0; i < 3; i++)
{
Console.WriteLine("发送：" + "客户端流" + i.ToString());
await call.RequestStream.WriteAsync(new HelloRequest { Name = "客户端流" + i.ToString() });
}
await call.RequestStream.CompleteAsync();
var reply4 = await call;
Console.WriteLine($"{reply4.Message}");
}
Console.WriteLine("客户端流结束-------");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("双向流开始-------");
//双向流
using (var call = helloClient.SayHelloStream())
{
//Console.WriteLine("启动后台任务以接收消息:输入quit退出");
//接收
var readTask = Task.Run(async() =>
{
await foreach (var response in call.ResponseStream.ReadAllAsync())
{
Console.WriteLine(response.Message);
}
});
////连续发送
//Console.WriteLine("启动后台任务以接收消息");
//for (var i = 0; i < 3; i++)
//{
// Thread.Sleep(1000);//等待1秒，等服务器回复
// Console.WriteLine("发送：" + "双向流" + i.ToString());
// await call.RequestStream.WriteAsync(new HelloRequest { Name = "双向流" + i.ToString() });
//}
//手动输入发送
Console.WriteLine("启动后台任务以接收消息:输入quit退出");
while (true)
{
string input = Console.ReadLine();
if (input == "quit")
{
break;
}
await call.RequestStream.WriteAsync(new HelloRequest { Name = input });
}
await call.RequestStream.CompleteAsync();
await readTask;
}
Console.WriteLine("双向流结束-------");
Console.ReadKey();
}