cartservice

cart service

The cart service provides shopping cart functionality, such as getting a cart contents, adding items to a cart, or emptying the cart.

OpenTelemetry instrumentation

Initialization

The OpenTelemetry SDK is initialized the the ConfigureServices function in Startup.cs. As part of this initialization, AspNetCore and HttpClient instrumentation is added for all incoming requests.

    // Initialize the OpenTelemetry tracing API, with resource attributes
    // setup instrumentation for AspNetCore and HttpClient
    // use the OTLP exporter
    services.AddOpenTelemetryTracing((builder) => builder
        .SetResourceBuilder(ResourceBuilder.CreateDefault().AddService(servicename).AddAttributes(attributes))
        .AddAspNetCoreInstrumentation()
        .AddHttpClientInstrumentation()
        .AddOtlpExporter(otlpOptions =>
        {
            otlpOptions.Endpoint = new Uri(otlpendpoint);
            var headers = new Grpc.Core.Metadata();
            otlpOptions.Headers = headers;
        }));