public class RegisterUserServlet extends RootServlet {
private static final long serialVersionUID = 1L;

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
    log.info("entering register user request");

    // Validate parameters
    log.info("Validate parameters");
    String username, password;
    try {
        username = getRequiredParameter(request, "username");
        password = getRequiredParameter(request, "password");
    } catch (MissingParameterException e) {
        log.warning("Missing parameter: " + e.getMessage() + ". Setting Http status code "
                + HttpServletResponse.SC_BAD_REQUEST);
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        forward(request, response, "/jsp/mpe.jsp");
        return;
    }

    String endpoint = Utilities.getEndPoint(request);
    log.info(String.format("Register user: username [%s], endpoint [%s]", username, endpoint));

    log.info("Validate username and password");
    if (!Utilities.isValidUsername(username) || !Utilities.isValidPassword(password)) {
        log.warning(String.format("Invalid parameters: username [%s] or password", username));
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        forward(request, response, "/jsp/mpe.jsp");
        return;
    }

    try {
        log.info("Register user: " + username);
        boolean result = authSample.registerUser(username, password, endpoint);
        if (!result) {
            log.warning(String.format("Duplicate registration [%s]", username));
            response.setStatus(HttpServletResponse.SC_NOT_ACCEPTABLE);
            forward(request, response, getServletParameter(this, "error"));
            return;
        }
    } catch (DataAccessException e) {
        log.log(Level.SEVERE, String.format("Failed to register user [%s]", username), e);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        forward(request, response, getServletParameter(this, "error"));
        return;
    }

    response.setStatus(HttpServletResponse.SC_OK);
    log.info(String.format("User [%s] registered successfully", username));
    forward(request, response, getServletParameter(this, "success"));
    return;
}

function doGet(request,  response) {
console.info("entering register user request");
console.info("Validate parameters");

var username = request.body.username;
var password = request.body.password;

dynamo.user.create(username, password, function (err, user) {

    if (err) {
        return response.status(400).send(err);
    }

    var endpoint = request.body.url;

    console.info("Register user: username %s, endpoint %s", username, endpoint);

    console.info("Validate username and password");

    if(!user.username || !user.password ){
        console.info("Invalid parameters: username %s or password", username);
        return response.status(400);
    }

    console.info("Register user: " + username);

});

console.info("User %s registered successfully", username);
return response.status(200);