How do I make a call to the Yahoo hourly weather forecast API?

Question

I have found yahoo weather forcast most helpful.

I'm able to get an hourly weather request here from Yahoo.

How can I make an API request for the above hourly weather report using an Yahoo API call to http://weather.yahooapis.com/forecastrss?w=2502265?

This is the documentation I found.

Answer 1

You can do using the REST API's of the programming language you want to use.. I will give Java example. (Similar thing applies to other languages too.. )'

package tests;

import org.apache.http.*;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

/**
 * A simple Java REST GET example using the Apache HTTP library.
 * This executes a call against the Yahoo Weather API service, which is
 * actually an RSS service (http://developer.yahoo.com/weather/).
 * 
 * Try this Twitter API URL for another example (it returns JSON results):
 * http://search.twitter.com/search.json?q=%40apple
 * (see this url for more twitter info: https://dev.twitter.com/docs/using-search)
 * 
 * Apache HttpClient: http://hc.apache.org/httpclient-3.x/
 *
 */
public class ApacheHttpRestClient1 {

  public static void main(String[] args) {
    DefaultHttpClient httpclient = new DefaultHttpClient();
    try {
      // specify the host, protocol, and port
      HttpHost target = new HttpHost("weather.yahooapis.com", 80, "http");

      // specify the get request
      HttpGet getRequest = new HttpGet("/forecastrss?p=80020&u=f");

      System.out.println("executing request to " + target);

      HttpResponse httpResponse = httpclient.execute(target, getRequest);
      HttpEntity entity = httpResponse.getEntity();

      System.out.println("----------------------------------------");
      System.out.println(httpResponse.getStatusLine());
      Header[] headers = httpResponse.getAllHeaders();
      for (int i = 0; i < headers.length; i++) {
        System.out.println(headers[i]);
      }
      System.out.println("----------------------------------------");

      if (entity != null) {
        System.out.println(EntityUtils.toString(entity));
      }

    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      // When HttpClient instance is no longer needed,
      // shut down the connection manager to ensure
      // immediate deallocation of all system resources
      httpclient.getConnectionManager().shutdown();
    }
  }

There are more ways to do the same... you can find many other alternate ways at http://alvinalexander.com/java/java-apache-httpclient-restful-client-examples

Answer 2

Yahoo Weather Api does not seem to support hourly forecasts, there are just a few parameters you have control over like the location in (woeid) or (lat, long) and the temperature-unit (u or f), refer here for yahoo query language.

You can use other api's AccuWeather for hourly details.