Description:

The goal is the have possibility to instrument MongoDB.Client simply by calling AddSource("MongoDB.Driver") on OpenTelemetry API. There should be not need to include any additional library/call any additional MongoDB, specific method.

using var tracerProvider = Sdk.CreateTracerProviderBuilder()
            .AddSource("MongoDB.Driver") // or other chosen during implementation
            .AddConsoleExporter()
            .Build();

Required changes:

New reference to System.Diagnostics.DiagnosticSource will be needed to achieve this. OpenTelemetry Under the hood relays on ActivitySource.

Traces/spans should be implemented according to semantic convention.

Current state:

There is a possibility to do similar things by using MongoDB.Driver.Core.Extensions.DiagnosticSources nuget package. However it is against best practices/recommendation and force end-users to utilize additional package.