# The Ajax

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Introduction:

All XMLHttpRequest really does is allows browsers to send messages back to the server. Combined with DOM manipulation, this allows us to update or replace parts of a page. This simple API marked a radical change in web application development, and rapidly became commonplace

The Siga.net

Using the examples above, I’ve built Siga.net which implements get, post, and ajax:

                  
Siga.net.get('/example' , { success : function (r) { alert (r.responseText ); } });       
                  
                

The available chained methods are:

• set: set a HTTP header data.
• the postBody end: send the request over the network, and calls your callback with a res object.
• Send: sends the request and calls data: .send({ data: value }, function(res) { });

An Ajax GET request. Exemple:

                  
 S.get('/get-test')
   .set('Accept', 'text/html')
   .end(function(res) {
     assert.equal('Sample text', res.responseText);
   }); 
                  
                

An Ajax POST request. Example:

                  
S.post('/post-test')
   .data({ key: 'value' })
   .end(function(res) {
     assert.equal('value', res.responseText);
   });        
                  
                

A jsonp request. Example:

                  
var url = 'http://feeds.delicious.com/v1/json/';
url += 'alex_young/javascript?callback={callback}';

Siga.net.jsonp(url, {
  success: function(json) {
    console.log(json);
  }
});         
                  
                

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The Ajax methods are mapped to the turing object:

• Siga.get();
• Siga.post();
• Siga.json();