RequestSpecBuilder is a class in Rest Assured, which contains methods to set cookies, headers, multipart details, body, authentication, form parameters, query parameters, path parameters, base path, base URI, proxy, etc. These all are required to construct a Requestspecification. After adding all required details, we need to use “build()” method of RequestSpecBuilder class to get a RequestSpecification reference.
// Creating an object of RequestSpecBuilder
RequestSpecBuilder reqBuilder = new RequestSpecBuilder();
// Setting Base URI
reqBuilder.setBaseUri(“https://restful-booker.herokuapp.com”);
// Setting Base Path
reqBuilder.setBasePath(“/booking”);
// Getting RequestSpecification reference using builder() method
RequestSpecification reqSpec = reqBuilder.build();
// We can directly call http verbs on RequestSpecification
Response res1= reqSpec.get();
System.out.println(res1.asString());
or
// We can also pass RequestSpecification reference variable in overloaded given() method
Response res2 = RestAssured.given(reqSpec).get();
System.out.println(res2.asString());
or
// We can also pass RequestSpecification using spec() method
Response res3 = RestAssured.given().spec(reqSpec).get();
System.out.println(res3.asString());