{ "userId": "dummy1", "userRole": "s", "integrationId": "null", "integrationType": "dummy", "externalUserId": "dummy2" }

  • do you have your trials or can you demonstrate you did some investigation of your issue on your own?
    – Alexey R.
    Feb 12, 2021 at 13:23
  • I tried with Json array but didn't worked I might missed something there, I have removed those currently I'm validating with one by one object for now-String body = res.getBody().asString(); JSONObject jsonObject = new JSONObject(body); Log.assertThat((jsonObject.isNull("Key")) && jsonObject.isNull("Key") && jsonObject.isNull("Key"),
    – Arun
    Feb 12, 2021 at 14:10

1 Answer 1


You can use Hamcrest matchers to verify that:

package click.webelement.api.restassured;

import io.restassured.RestAssured;
import java.net.MalformedURLException;
import java.net.URL;
import static org.hamcrest.Matchers.*;

public class ValueValidation {

    public static void main(String[] args) throws MalformedURLException {
                .get(new URL("https://60269516186b4a0017780505.mockapi.io/wec"))
                .body("$", not(hasValue(nullValue())));


P.S. - https://60269516186b4a0017780505.mockapi.io/wec is a mock that I have created for the test. Not sure for how log it is going to exist. It returns:

  "userId": "dummy1",
  "userRole": "s",
  "integrationId": null,
  "integrationType": "dummy",
  "externalUserId": "dummy2"

P.P.S. - this "integrationId": "null" does not mean the field has null value. This is a string. Null value in JSON is set like this: "integrationId": null

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