Open weather extractor

We have solved the problem of obtaining the geolocation from the IP address in this chapter. As the business requested, we also need to know the current temperature given a geolocation.

Getting ready

The execution of the previous recipe is needed.

How to do it...

Go to the OpenWeatherMap page at: https://openweathermap.org/. Register for a free plan to obtain your free API key, that key is needed to access the free API.

Create a file called OpenWeather.java in the src/main/java/treu/extractors directory with the following contents:

package treu.extractors; 
 
import com.fasterxml.jackson.databind.JsonNode; 
import com.fasterxml.jackson.databind.ObjectMapper; 
import doubloon.extractors.OpenExchange; 
import java.io.IOException; 
import java.net.MalformedURLException; 
import java.net.URL; 
import java.util.logging.Level; 
import java.util.logging.Logger; 
 
public class OpenWeather { 
   
  private static final String API_KEY = "API_KEY_VALUE";                 //1 
  protected...