Rest Assured: Extract value from response json

Using ‘extract().path()’ method, you can extract value from response json.

For example, API 'http://localhost:8080/api/v1/employees/3' return following response.

{

    "id": 3,

    "firstName": "Purna Chandra",

    "lastName": "Rao"

}

Below snippet extract firstName property value.

String firstName =

given()

         .header("Accept", "application/json")

.when()

         .get("api/v1/employees/3")

.then()

         .assertThat().statusCode(200).and()

         .contentType(ContentType.JSON)

.extract()

         .path("firstName");

TestApp.java

package com.sample.app;

import static io.restassured.RestAssured.given;
import static org.junit.Assert.assertEquals;

import org.junit.Test;

import io.restassured.RestAssured;
import io.restassured.http.ContentType;

public class TestApp {

 @Test
 public void testApp() {
  RestAssured.baseURI = "http://localhost:8080";

  String firstName = given().header("Accept", "application/json").when().get("api/v1/employees/3").then()
    .assertThat().statusCode(200).and().contentType(ContentType.JSON).extract().path("firstName");

  assertEquals(firstName, "Purna Chandra");
 }

}

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