You can validate your Follow the steps given below to validate the API call response assertions using the Test Data test data in your QAS Application. Follow the steps below to achieve the same.
Record a test case in a web service project.
Edit the step and execute the API call.
Under the Response Body, add the required assertion with the option - “Response should have a key with value contains” and save the step.
Replace the input with the validation parameter from the test data file.
Execute to verify.