udemy 4g drone

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;


import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.ui.Model;

import lombok.RequiredArgsConstructor;
import lombok.extern.java.Log;
import lombok.extern.slf4j.Slf4j;

@Slf4j
@Controller
@RequiredArgsConstructor
public class BaseController {

    private final ConfigReader configurations;

    @GetMapping("/")
    public String IndexPage(){

       log.debug("opened index page");
        return "index";
    }

    @GetMapping("/v/{droneId}")
    public String getVideoFeed(Model model, @PathVariable("droneId") String droneId){

        model.addAttribute("publicIp", getPublicIpAddress());
        model.addAttribute("droneId", droneId);
        model.addAttribute("videoEndpoint", configurations.getVideoWsEndpoint());


        return "video";
    }

    private String getPublicIpAddress() {
        String ip = "";
        try {
            final URL whatismyip = new URL("http://checkip.amazonaws.com");

            try(final BufferedReader in = new BufferedReader(new InputStreamReader(whatismyip.openStream()))){
                ip = in.readLine();
            }
            } catch (Exception e) {
                log.error(e.getMessage());
            }
            return ip;

    }
}