Rest Assured API Testing Interview Questions & Answer for Fresher and Experience

What is Rest Assured?

Rest Assured is a Java library used for testing RESTful web services.
How do you perform a GET request in Rest Assured?

Use given().when().get("/endpoint").then().statusCode(200); to perform a GET request and check the status code.
How do you validate a JSON response in Rest Assured?

Use given().when().get("/endpoint").then().body("key", equalTo("value")); to validate a JSON response.
How can you add headers to a request in Rest Assured?

Use given().header("Header-Name", "value").when().get("/endpoint"); to add headers to a request.
How do you handle authentication in Rest Assured?

Use given().auth().basic("username", "password").when().get("/endpoint"); for basic authentication.