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<div class="intro">
<p>Accessing data from a server is easy with DataSource.IO, which uses the IO Utility to retrieve data over HTTP. A <a href="../dataschema/">DataSchema</a> plugin is used to normalize incoming data into a known format for consistency of usage by other components.</p>
</div>
<div class="example yui3-skin-sam">
{{>datasource-io-source}}
</div>
<p>If your server returns JSON data, use a DataSourceJSONSchema plugin to parse the data against a schema that you provide:</p>
```
YUI().use("datasource-io", "datasource-jsonschema", function(Y) {
var myDataSource = new Y.DataSource.IO({source:"ysearch_json_madonna.php"}),
myCallback = {
success: function(e){
alert(e.response);
},
failure: function(e){
alert("Could not retrieve data: " + e.error.message);
}
};
schema: {
resultListLocator: "ResultSet.Result",
resultFields: ["Title"]
}
});
// This request string will get appended to the URI
request:"?output=json",
callback:myCallback
});
});
```
<p>On the other hand, a DataSourceXMLSchema plugin can be used to parse XML data coming from your server:</p>
```
YUI().use("datasource-io", "datasource-xmlschema", function(Y) {
var myDataSource = new Y.DataSource.IO({source:"ysearch_xml_madonna.php"}),
myCallback = {
success: function(e){
alert(e.response);
},
failure: function(e){
alert("Could not retrieve data: " + e.error.message);
}
};
schema: {
resultListLocator: "result",
resultFields: [{key:"title", locator:"*[local-name() ='title']"}]
}
});
request:"?output=xml",
callback:myCallback
});
});
```