Automate the API using rest assured

Question

I have some got rest API's for testing with rest assured. How to automate using with rest assured ? What are the different cases that should I need to test ? This is a sample API .What are the test cases that I need to test ? I want to know about rest api testing comcept.... here is the sample API what should I do ?

appinit (GET)
======= 

http://th/m/v2/appinit?
clientId=3&
appName=qberCli



{
"status":true,
"app_secret":"c6b8fff7accd0daf75f1c5757ce11",
"dt":1486100177
}

Here is a sample API testing:

    package  com.qber.test;

    import org.testng.annotations.DataProvider;
    import org.testng.annotations.Test;

    import static com.jayway.restassured.RestAssured.given;
    import static org.hamcrest.CoreMatchers.equalTo;

   public class bookToken {
    @Test(dataProvider = "appinit")
    public void md5JsonTest(String clientId,String appName)
 {

        given().
                parameters("c", clientId).parameters("a",appNmae).
                when().
                get("http://th/m/v2/appinit?
    clientId=&
    appName=").
                then().
                assertThat().
                body("md5", equalTo(md5Hash));
    }

    @DataProvider(name = "appinit")
    public Object[][] createMD5TestData() {

        return new String[][] {
                {"3","qbercli"}



        };
    }

}

What are the addtional test cases that I should write ?

Answer 1

In terms of more cases that you need to test, here are some examples:

• get with an invalid client-id, expect error
• get with empty app-name, expect error
• get without passing any query string parameters
• validate that the md5 hash returned is as expected
• validate the payload, that it has 'status' and 'dt' as not-null
• validate the format of the payload data (if it is a string or valid date etc)

I recommend Karate for testing, it is much simpler than REST-Assured. (disclaimer: I am the dev)

Answer 2

If you considering automating API's, I would suggest you to automate it in a traditional way using either

1. Java HttpURLConnection
2. Apache HttpClient

Please take a look at this link for more info on above 2 points.