public static async Task Main(string[] args)
{
//Environment.SetEnvironmentVariable("GRPC_TRACE", "all");
Environment.SetEnvironmentVariable("GRPC_VERBOSITY", "debug");
GrpcEnvironment.SetLogger(new ConsoleLogger());
//TODO: Configure channel:
//https://github.com/grpc/grpc/blob/master/doc/keepalive.md
//Channel channel = new Channel("localhost", 30051, ChannelCredentials.Insecure);
//Channel channel = new Channel("<UAT SERVER HERE>", 30051, ChannelCredentials.Insecure);
//Works with http port on AspNetCore grpc server
//var channel = new Channel("localhost", 5001, ChannelCredentials.Insecure);
//https://stackoverflow.com/questions/37714558/how-to-enable-server-side-ssl-for-grpc
var cacert = File.ReadAllText(@"C:\Users\ABOK078\Desktop\gRPC presentation\Grpc-Demo\cert\ca.crt");
var clientcert = File.ReadAllText(@"C:\Users\ABOK078\Desktop\gRPC presentation\Grpc-Demo\cert\client.crt");
var clientkey = File.ReadAllText(@"C:\Users\ABOK078\Desktop\gRPC presentation\Grpc-Demo\cert\client.key");
var credentials = new SslCredentials(cacert, new KeyCertificatePair(clientcert, clientkey));
Channel channel = new Channel("localhost", 30051, credentials);
var client = new MarketData.MarketDataClient(channel);
await SimpleCall(client, 10);
//wait SimpleCallWithDeadline(client);
//var cts = new CancellationTokenSource(TimeSpan.FromSeconds(5));
//await StreamCallWithCts(client, cts.Token);
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
channel.ShutdownAsync().Wait();
}
private static async Task SimpleCallWithDeadline(MarketData.MarketDataClient client)
{
try
{
var quote = await client.GetQuoteAsync(new CurrencyPair { From = "USD", To = "ZAR" }, deadline : DateTime.UtcNow.AddMilliseconds(500));
}
catch (RpcException ex) when(ex.StatusCode == StatusCode.DeadlineExceeded)
{
Console.WriteLine("Greeting timeout.");
}
catch (Exception ex)
{
Console.WriteLine($"SimpleCall failed: {ex}");
}
}
static async Task Main(string[] args)
{
AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);
using var channel = GrpcChannel.ForAddress("http://localhost:30051");
var client = new MarketData.MarketDataClient(channel);
try
{
for (int i = 0; i < 10; ++i)
{
var stopwatch = new Stopwatch();
stopwatch.Start();
//var quote = client.GetQuote(new CurrencyPair { From = "USD", To = "ZAR" });
var quote = await client.GetQuoteAsync(new CurrencyPair { From = "USD", To = "ZAR" });
stopwatch.Stop();
Console.WriteLine($"{DateTime.Now} - Bid: {quote.Bid}, Ask: {quote.Ask}. Request time (ms): {stopwatch.ElapsedMilliseconds}");
await Task.Delay(TimeSpan.FromSeconds(1));
}
var cts = new CancellationTokenSource(TimeSpan.FromSeconds(5));
var qoutesStreamingCall = client.GetQuotes(new CurrencyPair {
From = "USD", To = "ZAR"
}, cancellationToken: cts.Token);
await foreach (var quote in qoutesStreamingCall.ResponseStream.ReadAllAsync(cancellationToken: cts.Token))
{
Console.WriteLine($"{DateTime.Now} - Bid: {quote.Bid}, Ask: {quote.Ask}.");
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
private static async Task SimpleCall(MarketData.MarketDataClient client, int n)
{
try
{
for (int i = 0; i < n; ++i)
{
var stopwatch = new Stopwatch();
stopwatch.Start();
//var quote = client.GetQuote(new CurrencyPair { From = "USD", To = "ZAR" });
var quote = await client.GetQuoteAsync(new CurrencyPair { From = "USD", To = "ZAR" });
stopwatch.Stop();
Console.WriteLine($"{DateTime.Now} - Bid: {quote.Bid}, Ask: {quote.Ask}. Request time (ms): {stopwatch.ElapsedMilliseconds}");
await Task.Delay(TimeSpan.FromSeconds(1));
}
}
catch (Exception e)
{
Console.WriteLine($"Simple call failed: {e}");
}
}
private static async Task StreamCallWithCts(MarketData.MarketDataClient client, CancellationToken ct)
{
try
{
var qoutesStreamingCall = client.GetQuotes(new CurrencyPair {
From = "USD", To = "ZAR"
}, cancellationToken: ct);
while (await qoutesStreamingCall.ResponseStream.MoveNext(ct))
{
var quote = qoutesStreamingCall.ResponseStream.Current;
Console.WriteLine($"{DateTime.Now} - Bid: {quote.Bid}, Ask: {quote.Ask}.");
}
}
catch (RpcException ex) when(ex.StatusCode == StatusCode.Cancelled)
{
Console.WriteLine("StreamCall was cancelled.");
}
catch (Exception ex)
{
Console.WriteLine($"StreamCall failed: {ex}");
}
}
