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Tuesday, 5 September 2023

Different ways to Automate API Headers in Rest Assured ?

 





What is Rest Assured?

Rest Assured is a powerful Java library designed for simplifying and streamlining the testing of RESTful APIs. It provides a clean and intuitive way to write API tests, making it an essential tool for developers and testers working on web services. Rest Assured offers a domain-specific language (DSL) for writing HTTP requests and assertions, which allows you to express your test cases in a readable and structured manner. This DSL aligns with the principles of behavior-driven development (BDD) and makes it easy to verify the functionality, response, and behavior of your API endpoints. Rest Assured supports various authentication mechanisms, request parameters, and response validation, making it a versatile choice for API testing across different scenarios.


How to Automate GET-POST-PUT-DELETE with Rest Assured 


What are Headers in API ?

Headers play a critical role in HTTP communication and are equally important when working with Rest Assured. In the context of Rest Assured, headers refer to the metadata associated with an HTTP request or response. Headers contain vital information such as content type, authentication tokens, caching directives, and more. When testing APIs using Rest Assured, you can easily manipulate and verify headers in your requests and responses. This is essential for scenarios like setting authentication tokens in request headers or examining response headers to ensure that the server is returning the expected content type or status codes. Rest Assured provides intuitive methods to work with headers, allowing you to customize and validate them as part of your API tests, ensuring that your web services meet the required specifications and standards.


How to Automate SOAP API using Rest Assured with real-time examples?



Automate Headers using Rest Assured 

Let's Talk about Headers in Rest Assured

✅ Just wanted to share a quick tip on how to enhance your API testing using Rest Assured.


✅ In Rest Assured, you can pass headers to your HTTP requests using the header() method provided by the RequestSpecification.

This method allows you to add single headers, multiple headers, and headers from a map.

* * * * *
👉 How to send a Single Header 📌
* *****

You can add a single header to your request using the header() method.

Here's an example: 👇

public class SingleHeaderExample {
  public static void main(String[] args) {
    RestAssured.baseURI = "https : // reqres . in";
    RequestSpecification request = RestAssured.given()
     .header("Authorization", "BearerToken");

    Response response = request.get("/users");

    System.out.println(response.getStatusCode());
  }


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* * * * *
👉 How to send Multiple Headers 📌
*******

You can add multiple headers to your request by chaining multiple header() calls.

Here's an example:

public class MultipleHeadersExample {
  public static void main(String[] args) {
    RestAssured.baseURI = "https : // reqres . in";
    RequestSpecification request = RestAssured.given()
     .header("Authorization", "BearerToken")
     .header("Content-Type", "application/json");

    Response response = request.post("/users");

    System.out.println(response.getStatusCode());
  }
}



* * * * *
👉 How to send Headers with Map 📌
*******

You can also add headers from a map using the headers() method.

Here's an example:

public class HeadersFromMapExample {
public static void main(String[] args) {

RestAssured.baseURI = "https : // reqres . in";
Map<String, String> headersMap = new HashMap<>();
headersMap.put("Authorization","BearerToken");
headersMap.put("Content-Type", "application/json");

RequestSpecification request = RestAssured.given()
.headers(headersMap);

Response response = request.put("/users");
System.out.println(response.getStatusCode());
}
}


Feel free to try these examples on your API testing projects and supercharge your testing game.

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