Tracking of Common Services in AWS using X-ray

Question

I have multiple Lambdas and each of them either invoke another lambda or a rest API or a dynamoDB or S3 etc .

Example :

• HotelBooking
• FlighBooking

These invoke the common services like

• BookingService
• InvoiceService

I need to track which application i.e Flight Booking / HotelBooking is invoking the booking service and how many times / how much CPU etc

Is this possible through X-Ray in AWS or any other better ways ?

Answer 1

After some research, I believe annotation is the best way for the above problem

So we need to add an annotation in NodeJS

            AWSXRay.captureFunc('annotations', (subsegment) => {
                subsegment.addAnnotation('application', "BookingService");
            });

Annotations are indexed and can be used to filter too using an expression like this annotation.= "BookingService"

more Info : X-ray merges segments, Subsegments to traces so the annotation at subsegment level is enough for filtering the traces