asp.net mvc - check if user session has expired asp web api -


i experimenting in developing single page application using asp mvc 4 / web api , angularjs.

i using mvc controller actions return views , web api actions return json.

as web api part restfull , has no state, wondering how check if user session has expired. example: user clicking on button , leads request web api action json data. when request hits server want check if user session has expired.

as said rather new combination of technologies , wondering how can achieved. example appreciated. in advance.

web api introduced attribute [authorize] provide security. can set globally (global.asx)

public static void register(httpconfiguration config) {     config.filters.add(new authorizeattribute()); }

or per controller:

[authorize] public class valuescontroller : apicontroller{ ...

if user authenticated(session has not expired) service work if not http 401 unauthorized returned.


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