No Response with Webservices test

Hi guys,

I am trying to set up a Webservice test for an API call. When I test on public APIs I get results every time. But when I test on our local APIs, I click the Run button and nothing happens. It does not even show an error. I confirmed Proxy settings, but it didn’t work.
It doesn’t seem to be connecting at all.
Could it be that the API called is in C# and not Java?
Or is it related to the local server?

The error I get is the following:

<TITLE>Service Unavailable


<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii">



  <h2>Service Unavailable



  <p>HTTP Error 503. The service is unavailable.




10.5.4 503 Service Unavailable

The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay MAY be indicated in a Retry-After header. If no Retry-After is given, the client SHOULD handle the response as it would for a 500 response.

  Note: The existence of the 503 status code does not imply that a

  server must use it when becoming overloaded. Some servers may wish

  to simply refuse the connection.


I think that there was some issue on the local server. Could you try with other tools to see if there is any difference?

Yes, I am able to successfully run the GET on Postman.

This was resolved by running the code in a test case instead of using the WS GUI in Katalon.
Not sure why…

See the code below:

def data = findTestData(“Policy/Member”)

def NovaWrapperWebApi = MapWebApiBodyVariables(index)

def response = WS.sendRequest(NovaWrapperWebApi)

def memberIdNumber = findTestData(‘Policy/Member’).getValue(‘IDNumber’, index);

GlobalVariable.result = 'Row number ‘+index+’ ‘+response.getResponseText()’


I am getting the same error !! Http/1.1 Service Unavailable only way I can get the access the URL Web