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You're reading from  Apache Kafka 1.0 Cookbook

Product typeBook
Published inDec 2017
Reading LevelIntermediate
PublisherPackt
ISBN-139781787286849
Edition1st Edition
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Authors (2):
Raúl Estrada
Raúl Estrada
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Raúl Estrada

Raúl Estrada has been a programmer since 1996 and a Java developer since 2001. He loves all topics related to computer science. With more than 15 years of experience in high-availability and enterprise software, he has been designing and implementing architectures since 2003. His specialization is in systems integration, and he mainly participates in projects related to the financial sector. He has been an enterprise architect for BEA Systems and Oracle Inc., but he also enjoys web, mobile, and game programming. Raúl is a supporter of free software and enjoys experimenting with new technologies, frameworks, languages, and methods. Raúl is the author of other Packt Publishing titles, such as Fast Data Processing Systems with SMACK and Apache Kafka Cookbook.
Read more about Raúl Estrada

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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...
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Apache Kafka 1.0 Cookbook
Published in: Dec 2017Publisher: PacktISBN-13: 9781787286849

Authors (2)

author image
Raúl Estrada

Raúl Estrada has been a programmer since 1996 and a Java developer since 2001. He loves all topics related to computer science. With more than 15 years of experience in high-availability and enterprise software, he has been designing and implementing architectures since 2003. His specialization is in systems integration, and he mainly participates in projects related to the financial sector. He has been an enterprise architect for BEA Systems and Oracle Inc., but he also enjoys web, mobile, and game programming. Raúl is a supporter of free software and enjoys experimenting with new technologies, frameworks, languages, and methods. Raúl is the author of other Packt Publishing titles, such as Fast Data Processing Systems with SMACK and Apache Kafka Cookbook.
Read more about Raúl Estrada