Ballerina service to get quotes from Game of Thrones(with annotations and trimmed)

got_quote_service.bal

import ballerina/http;
import ballerina/log;
import ballerinax/kubernetes;
import ballerinax/openshift;

@openshift:Route {
    host: "www.got-quote.com"
}
@kubernetes:Service {}
listener http:Listener gotServiceEP = new(9090); // ballerina service endpoint
http:Client gotQuoteAPI = new("https://got-quotes.herokuapp.com/quotes");   // game of thrones API endpoint

@kubernetes:Deployment {
    namespace: "got-quote-proj",
    registry: "172.30.1.1:5000",
    buildImage: false,
    buildExtension: "openshift"
}
@http:ServiceConfig {
    basePath: "/got"    // basepath for my service
}
service gotService on gotServiceEP {
    ...
}

# Validates character.
# 
# + character - Game of Thrones character.
# + return - Untainted character or error if invalid character.
function validateCharacter(string character) returns string|error {
    ...
}