Spark java : Response parameter

As you observe implementation of get method, it takes request and response objects as parameters.

get("/hello/*/welcome/*", (request, response) -> {     
        return "Hello";
});

Response object provides number of APIs to set response body, cookie values etc.

response.body("Hello");        // sets content to Hello
response.header("FOO", "bar"); // sets header FOO with value bar
response.raw();                // raw response handed in by Jetty
response.redirect("/example"); // browser redirect to /example
response.status(401);          // set status code to 401
response.type("text/xml");     // set content type to text/xml

For cookie support

response.cookie("foo", "bar");                  // set cookie with a value
response.cookie("foo", "bar", 3600);            // set cookie with a max-age
response.cookie("foo", "bar", 3600, true);      // secure cookie
response.removeCookie("foo");

import static spark.Spark.*;

public class HelloSpark {
  public static void main(String[] args) {  
    get("/hello", (request, response) -> {
       response.redirect("https://self-learning-java-tutorial.blogspot.com");
       return "Hi";
    });
  }

}

http://localhost:4567/hello

Hit above URL, it redirect request to my blog home page.

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