Datadog support APM

[fenriz07]

Hello. I'm working in a suport for Datadog APM

I have this:

func Datadog(ctx gearbox.Context) {

	method := string(ctx.Context().Method())

	opts := []ddtrace.StartSpanOption{
		tracer.SpanType(ext.SpanTypeWeb),
		//tracer.ServiceName(cfg.serviceName)
		tracer.Tag(ext.HTTPMethod, method),
		tracer.Tag(ext.HTTPURL, ctx.Context().URI().String()),
		tracer.Measured(),
	}

	span, ctxOfSpan := tracer.StartSpanFromContext(context.Background(), "http.request", opts...)
	defer span.Finish()

	ctx.Next()

	span.SetTag(ext.ResourceName, string(ctx.Context().URI().Path()))

	status := ctx.Context().Response.StatusCode()

	span.SetTag(ext.HTTPCode, status)

	if status == gearbox.StatusInternalServerError {

		b := string(ctx.Context().Response.Body())
		span.SetTag(ext.Error, true)
		span.SetTag(ext.ErrorMsg, b)
	}
}

This a example in "go-chi" https://github.com/DataDog/dd-trace-go/blob/v1/contrib/go-chi/chi/chi.go

I have one problem need pass a my handler ctxOfSpan this variable is type context.Context. I have been thinking in a possible solution like this:

ctx.NextWithCtx(ctxOfSpan)

You have a better idea?

Thank you for you important time. Regards