API Call

You can send HTTP requests to external APIs and process responses using JavaScript. This page contains an example of making a REST API call using Apache Commons HttpClient and parsing the response.

var post = new org.apache.commons.httpclient.methods.PostMethod("https://query.yahooapis.com/v1/public/yql?q="+encodeURIComponent("select item from weather.forecast where woeid in (select woeid from geo.places(1) where text='$location')"));
var client = new org.apache.commons.httpclient.HttpClient();
post.setRequestHeader("Content-type", "application/json");
post.setRequestHeader("Accept", "application/json");
var status = client.executeMethod(post);
var br = new java.io.BufferedReader(new java.io.InputStreamReader(post.getResponseBodyAsStream()));
var response = "";
var line = br.readLine();
while(line != null){
    response = response + line;
    line = br.readLine();
}
post.releaseConnection();
var item = JSON.parse(response);
requestHeaderMapFromClient.put("title" ,item.query.results.channel.item.title);
requestUrlParamMapFromClient.put("title" ,item.query.results.channel.item.title );
bodyText= 'title:'+ item.query.results.channel.item.title;

Example Explanation

This example sends a GET request to the Yahoo Weather API and parses the returned JSON response to use the title information as header, URL parameter, and body.