Please follow this documentation-
https://docs.katalon.com/katalon-studio/docs/parameterize-a-web-service-object.html#for-restful-request
For the HTTP Header Katalon is supporting Key and Value pairs.
Like-
‘Send the request with jwt token’
ResponseObject getResponse = WS.sendRequest(findTestObject(‘Object Repository/OR JwtToken/GetRequest - Jwt’, [(‘jwt_token’) : token]))
‘Assert on the status code’
Assertions.assertThat(getResponse.getStatusCode()).isEqualTo(200)
Hope this will help you.
Thanks Happy Testing.