2 Replies Latest reply on Jan 18, 2018 11:18 AM by sloison RSS
    sloison Newbie

    Error managment in services



    I have a service A on a thing which is calling a service B on a utilityThing.

    This service B return an infotable

    Some time, in internal process of B, we have an error which has to be propagate to A.

    How to do that ?

    I try with a javascript "throw" but it seems to be intercepted by plateform as in the try catch in A I see a JavaException.


    Best regards


      • Re: Error managment in services
        polinao Ninja

        Could you please provide more details? I apologize for the misunderstanding, the description is not too clear. Does the error in B occur as a result of a service calling, i.e infotable is no longer returned? You may try catch in A around the service B, and then ensure your result is outside of that .

        • Re: Error managment in services
          carlesc Heavyweight Champ

          Hi Stephane,


          You can use throw "text";  // -- I think it's not officially supported anyway, I've used in the past but I'm removing almost everywhere on my code


          It works, but I recommend you to minimize the times on your programing blocks when a Exception occurs, as it's super slow to process. For instance if you Iterate over N-objects and you relay on a try{}catch inside the loop to catch errors if you have many of them it will be super slow to execute.


          If you can, better you prevent calling B if you can know in advance that there will be an error ( param checking and alike ) and/or detect error on B and return a special case Infotable and not throwing an exception.