in src/Microsoft.Extensions.Configuration.AzureAppConfiguration/TracingUtils.cs [110:135]
public static async Task CallWithRequestTracing(bool tracingEnabled, RequestType requestType, RequestTracingOptions requestTracingOptions, Func<Task> clientCall)
{
string correlationContextHeader = "";
if (tracingEnabled && requestTracingOptions != null)
{
correlationContextHeader = CreateCorrelationContextHeader(requestType, requestTracingOptions);
}
var activity = new Activity(RequestTracingConstants.DiagnosticHeaderActivityName);
activity.Start();
try
{
if (!string.IsNullOrWhiteSpace(correlationContextHeader))
{
activity.AddTag(RequestTracingConstants.CorrelationContextHeader, correlationContextHeader);
}
await clientCall().ConfigureAwait(false);
}
finally
{
activity.Stop();
}
}