ItemGuid Property

This property contains the globally unique identifier for the current item.

Syntax

 rss.getItemGuid(index, [callback])
 rss.setItemGuid(index,  itemGuid, [callback])

Default Value

""

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for the getItemGuid([callback]) method is defined as:

function(err, data){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'data' is the value returned by the method.

The callback for the setItemGuid([callback]) method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This property contains the globally unique identifier for the current item. It is a string that uniquely identifies the item. Aggregators can use This property to determine whether or not an item is new.

Aggregators should view this value as a string, but it is up to the source of the feed to guarantee its uniqueness. The value may be the URL link to the full text of the item in order to help guarantee that it is unique.

The index parameter specifies the index of the item in the array. The size of the array is controlled by the ItemCount property.

This property is not available at design time.

Data Type

String