Telescope for .NET

dotnet add package Inverge.Nexus.Telescope --prerelease     # net8.0 / net9.0
dotnet add package Inverge.Nexus.AspNetCore --prerelease    # UseNexusTelescope()

builder.Services.AddNexusTelescope(o =>
{
    o.Service = "orders-api";
    // o.SampleRate = 0.2;
    // o.IgnorePaths.Add("/metrics");
    // o.IgnoreTypes.Add("cache");
});

var app = builder.Build();
app.UseNexusTelescope();   // early — before routing

// Producer: put the current trace on the message
message.Traceparent = NexusTelescope.Traceparent();

// Consumer: run the job as its own journey in that trace
await telescope.RunAsync("job", "SendInvoice", () => SendAsync(order), message.Traceparent);

using (telescope.Span("render pdf"))   // nests across awaits
{
    await RenderAsync();
}

telescope.RecordQuery("GET orders:42", null, durationMs: 0.4, connection: "redis");
telescope.SetUser(userId, email);
telescope.Tag(new[] { "vip" });
telescope.Enrich(new Dictionary<string, object?> { ["tenant"] = tenantId });