RosettaCodeData/Task/Hello-world-Graphical/Ballerina/hello-world-graphical.ballerina

import ballerina/http;

service / on new http:Listener(9090) {

    // This function responds with `string` value `Hello, World!` to HTTP GET requests.
    resource function get greeting() returns string {
        return "Goodbye, World!";
    }
}