// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory)
{
loggerFactory.AddSerilog();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseSerilogRequestLogging();
app.UseRouting();
// Configures request pipeline to collect Prometheus metrics
app.UseHttpMetrics();
app.UseEndpoints(endpoints =>
{
endpoints.MapGrpcService <UserHandlerV1>();
// Starts a Prometheus metrics exporter using endpoint routing. The default URL is /metrics,
endpoints.MapMetrics();
endpoints.MapGet("/", async context =>
{
// Track test metrics
IMetricsRegistry metricsRegistry = app.ApplicationServices.GetRequiredService <IMetricsRegistry>();
using (metricsRegistry.HistogramGrpcCallsDuration())
{
metricsRegistry.CountGrpcCalls("GET /", "OK");
var random = new Random();
if (random.Next(0, 2) == 0)
{
metricsRegistry.CountFailedGrpcCalls("GET /");
}
var delayMilliseconds = random.Next(0, 2000);
await Task.Delay(delayMilliseconds);
await context.Response.WriteAsync(
"Users service is up and running!\n" +
"Communication with gRPC endpoints must be made through a gRPC client. To learn how to create a client, visit: https://go.microsoft.com/fwlink/?linkid=2086909");
}
});
});
}