REST API request parameter value = 0 issue

I am trying GET method with request parameters, Whenever I am trying to send request with request parameter value as 0 it consider it as null/empty once the request is forwarded to my application.
If you pass parameter value other than 0 it works fine.

Example -
Actual Request send to Dream factory:

Request after forwarded to my application from dream factory:

Which connector or database are you using?