Final answer:
To pass headers in Rest Assured requests, use the '.header()' method for a single header or '.headers()' method for multiple headers. Headers are key-value pairs passed to provide additional information to the server, such as content type or authentication details.
Step-by-step explanation:
To pass headers in Rest Assured requests, you'll use the header or headers methods provided by the library. You can either pass a single header by using the .header() method which takes two arguments: the header name and its value, or you can pass multiple headers at once using the .headers() method with a HashMap or multiple .header() method calls.
Here's an example of passing a single header:
RestAssured.given()
.header("Content-Type", "application/json")
.when()
.get("/api/endpoint");
And here's how you can pass multiple headers:
Headers headers = new Headers(
new Header("Content-Type", "application/json"),
new Header("Accept", "application/json")
);
RestAssured.given()
.headers(headers)
.when()
.get("/api/endpoint");
Remember, headers are important for passing additional information to the server, like content type or authentication details. When constructing API tests with Rest Assured, always ensure to include the necessary headers as per the API documentation.