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Test Token if Valid

Question asked by jay.kapalczynski on Aug 20, 2014

I am creating my own Token via aspx .net login page.  I am setting the Expiration of this Token as well.

Once authenticated the user is passed to an aspx page leveraging JavaScript API in a .js page to render the layers and map

It is here I am adding the Token to the Map Service: see below

 

var Data = "https://myserver.gov/arcgis/rest/services/Test/blers/MapServer?token=";

Data += MapServerToken;

map.addLayer(new ArcGISDynamicMapServiceLayer(Data,

    { opacity: .8 }));

 

If the app stands idle for an extended period of time the Token will expire.

 

Is there a way to test whether a Token is still valid or not via JavaScript?

 

If this is possible I would like to then redirect them back to a login page.

 

Anyone?  Thanks in advance

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