static async Task Main(string[] args)
{
// DI
var services = new ServiceCollection();
var loggerFactory = LoggerFactory.Create(logging =>
{
logging.AddConsole();
logging.SetMinimumLevel(LogLevel.Debug);
});
Func <HttpRequestMessage, IAsyncPolicy <HttpResponseMessage> > retryFunc = (request) =>
{
return(Policy.HandleResult <HttpResponseMessage>(r => {
var grpcStatus = StatusManager.GetStatusCode(r);
return r.StatusCode != HttpStatusCode.OK && grpcStatus != StatusCode.OK && grpcStatus != StatusCode.InvalidArgument;
})
.WaitAndRetryAsync(3, (input) => TimeSpan.FromSeconds(3 + input), (result, timeSpan, retryCount, context) =>
{
var grpcStatus = StatusManager.GetStatusCode(result.Result);
Console.WriteLine($"Request failed with {grpcStatus}. Retry");
}));
};
/*
* // https://grpcwebdemo.azurewebsites.net
* // gRPC
* services.AddGrpcClient<CountryServiceClient>(o =>
* {
* o.Address = new Uri("https://localhost:5001");
* }).AddPolicyHandler(retryFunc);
* var provider = services.BuildServiceProvider();
* var client = provider.GetRequiredService<CountryServiceClient>();
*/
// gRPC-Web
var handler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler());
var channel = GrpcChannel.ForAddress("https://grpcwebdemo.azurewebsites.net", new GrpcChannelOptions
{
HttpClient = new HttpClient(handler),
LoggerFactory = loggerFactory
});
var clientWeb = new CountryServiceClient(channel);
try
{
/*
* // Create
* var createdCountry = await client.CreateAsync(new CountryCreateRequest { Name = "Japan", Description = "" }); // Remove Name or Description to test validation
* var country = new Country
* {
* CountryId = createdCountry.Id,
* CountryName = createdCountry.Name,
* Description = createdCountry.Description
* };
* Console.WriteLine($"Country {country.CountryName} ({country.CountryId}) created!");
*
*
* // GetById
* var foundCountry = await client.GetByIdAsync(new CountrySearchRequest { CountryId = country.CountryId });
* country = new Country
* {
* CountryId = foundCountry.Id,
* CountryName = foundCountry.Name,
* Description = foundCountry.Description
* };
* Console.WriteLine($"Found country {country.CountryName} ({country.CountryId})");
*
*
* // Update
* var updatedCountry = await client.UpdateAsync(new CountryRequest { Id = country.CountryId, Name = "Japan", Description = "rising sun country, Nippon!!!" });
* country = new Country
* {
* CountryId = updatedCountry.Id,
* CountryName = updatedCountry.Name,
* Description = updatedCountry.Description
* };
* Console.WriteLine($"Country {country.CountryName} ({country.CountryId}) updated with new description: {country.Description}");
*
* // Delete
* await client.DeleteAsync(new CountrySearchRequest { CountryId = country.CountryId });
* Console.WriteLine($"Deleted country {country.CountryName} ({country.CountryId})");
*/
/*
* // Get all gRPC
* var countries = (await client.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
* {
* CountryId = x.Id,
* Description = x.Description,
* CountryName = x.Name
* }).ToList();
*
* Console.WriteLine("Found countries");
* countries.ForEach(x => Console.WriteLine($"Found country {x.CountryName} ({x.CountryId}) {x.Description}"));
*/
// Get all gRPC - web
var countriesweb = (await clientWeb.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
{
CountryId = x.Id,
Description = x.Description,
CountryName = x.Name
}).ToList();
Console.WriteLine("Found countries with gRPC-Web");
countriesweb.ForEach(x => Console.WriteLine($"Found country with gRPC-Web: {x.CountryName} ({x.CountryId}) {x.Description}"));
//var handler2 = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler());
//var channel2 = GrpcChannel.ForAddress("https://grpcweb.azurewebsites.net/", new GrpcChannelOptions
//{
// HttpClient = new HttpClient(handler2),
// LoggerFactory = loggerFactory
//});
//var clientweb2 = new Greeter.GreeterClient(channel2);
//var response = await clientweb2.SayHelloAsync(new HelloRequest { Name = ".NET" });
//Console.WriteLine(response.Message);
}
catch (RpcException e)
{
var errors = e.GetValidationErrors(); // Gets validation errors list
Console.WriteLine(e.Message);
}
}
static async Task Main(string[] args)
{
// DI
var services = new ServiceCollection();
var loggerFactory = LoggerFactory.Create(logging =>
{
logging.AddConsole();
logging.SetMinimumLevel(LogLevel.Debug);
});
var serverErrors = new HttpStatusCode[] {
HttpStatusCode.BadGateway,
HttpStatusCode.GatewayTimeout,
HttpStatusCode.ServiceUnavailable,
HttpStatusCode.InternalServerError,
HttpStatusCode.TooManyRequests,
HttpStatusCode.RequestTimeout
};
var gRpcErrors = new StatusCode[] {
StatusCode.DeadlineExceeded,
StatusCode.Internal,
StatusCode.NotFound,
StatusCode.ResourceExhausted,
StatusCode.Unavailable,
StatusCode.Unknown
};
Func<HttpRequestMessage, IAsyncPolicy<HttpResponseMessage>> retryFunc = (request) =>
{
return Policy.HandleResult<HttpResponseMessage>(r => {
var grpcStatus = StatusManager.GetStatusCode(r);
var httpStatusCode = r.StatusCode;
return (grpcStatus == null && serverErrors.Contains(httpStatusCode)) || // if the server send an error before gRPC pipeline
(httpStatusCode == HttpStatusCode.OK && gRpcErrors.Contains(grpcStatus.Value)); // if gRPC pipeline handled the request (gRPC always answers OK)
})
.WaitAndRetryAsync(3, (input) => TimeSpan.FromSeconds(3 + input), (result, timeSpan, retryCount, context) =>
{
var grpcStatus = StatusManager.GetStatusCode(result.Result);
Console.WriteLine($"Request failed with {grpcStatus}. Retry");
});
};
// https://grpcwebdemo.azurewebsites.net
// gRPC
//services.AddGrpcClient<CountryServiceClient>(o =>
//{
// o.Address = new Uri("https://localhost:5001");
//}).AddPolicyHandler(retryFunc);
//var provider = services.BuildServiceProvider();
//var client = provider.GetRequiredService<CountryServiceClient>();
// gRPC-Web
var handler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler());
var channel = GrpcChannel.ForAddress("https://grpc-dev-instance.eastus.azurecontainer.io", new GrpcChannelOptions
{
HttpClient = new HttpClient(handler),
LoggerFactory = loggerFactory
});
var clientWeb = new CountryServiceClient(channel);
try
{
// Get all gRPC
var countries = (await clientWeb.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
{
CountryId = x.Id,
Description = x.Description,
CountryName = x.Name
}).ToList();
Console.WriteLine("Found countries");
countries.ForEach(x => Console.WriteLine($"Found country {x.CountryName} ({x.CountryId}) {x.Description}"));
// Get all gRPC - web
//var countriesweb = (await clientWeb.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
//{
// CountryId = x.Id,
// Description = x.Description,
// CountryName = x.Name
//}).ToList();
//Console.WriteLine("Found countries with gRPC-Web");
//countriesweb.ForEach(x => Console.WriteLine($"Found country with gRPC-Web: {x.CountryName} ({x.CountryId}) {x.Description}"));
}
catch (RpcException e)
{
var errors = e.GetValidationErrors(); // Gets validation errors list
Console.WriteLine(e.Message);
}
}