topic Specifically detecting invalid credentials in ArcGIS API for Silverlight Questions https://community.esri.com/t5/arcgis-api-for-silverlight-questions/specifically-detecting-invalid-credentials/m-p/178471#M4462 <HTML><HEAD></HEAD><BODY><SPAN>Greetings, and thank you in advance for the help!</SPAN><BR /><BR /><SPAN>I'm writing an app to enable users to leverage the World Routing service using Oauth2 for the authentication process.&nbsp; I can get through the auth process, but see the '499 Token Required' error afterwards.&nbsp; I see this error until I provide data and generate a route.&nbsp; After that, things work nicely.&nbsp; This seems to be a separate issue though.</SPAN><BR /><BR /><SPAN>My issue in question is this:&nbsp; I want to be able to validate the username and password specified before providing data and attempting to generate a route.&nbsp; I've noticed that, after I provide data and attempt to generate a route with invalid credentials (using IdentityManager.GenerateCredentialAsync), my callback method has an exception whose message is this, "Unable to generate token.\r\nInvalid username or password".&nbsp; This is exactly what I'm looking for!&nbsp; However, is there a way to validate credentials and get this message before attempting to generate route, possibly during the auth process (and perhaps before going thhrough token steps)?</SPAN><BR /><BR /><SPAN>In a perfect world, I'd be able to provide the username\password, and receive a response indicating whether or not the credentials are valid without having to try and generate a route first.</SPAN><BR /><BR /><SPAN>Thank you again for the assistance!</SPAN></BODY></HTML> Thu, 13 Feb 2014 16:09:31 GMT AlexanderNelson 2014-02-13T16:09:31Z Specifically detecting invalid credentials https://community.esri.com/t5/arcgis-api-for-silverlight-questions/specifically-detecting-invalid-credentials/m-p/178471#M4462 <HTML><HEAD></HEAD><BODY><SPAN>Greetings, and thank you in advance for the help!</SPAN><BR /><BR /><SPAN>I'm writing an app to enable users to leverage the World Routing service using Oauth2 for the authentication process.&nbsp; I can get through the auth process, but see the '499 Token Required' error afterwards.&nbsp; I see this error until I provide data and generate a route.&nbsp; After that, things work nicely.&nbsp; This seems to be a separate issue though.</SPAN><BR /><BR /><SPAN>My issue in question is this:&nbsp; I want to be able to validate the username and password specified before providing data and attempting to generate a route.&nbsp; I've noticed that, after I provide data and attempt to generate a route with invalid credentials (using IdentityManager.GenerateCredentialAsync), my callback method has an exception whose message is this, "Unable to generate token.\r\nInvalid username or password".&nbsp; This is exactly what I'm looking for!&nbsp; However, is there a way to validate credentials and get this message before attempting to generate route, possibly during the auth process (and perhaps before going thhrough token steps)?</SPAN><BR /><BR /><SPAN>In a perfect world, I'd be able to provide the username\password, and receive a response indicating whether or not the credentials are valid without having to try and generate a route first.</SPAN><BR /><BR /><SPAN>Thank you again for the assistance!</SPAN></BODY></HTML> Thu, 13 Feb 2014 16:09:31 GMT https://community.esri.com/t5/arcgis-api-for-silverlight-questions/specifically-detecting-invalid-credentials/m-p/178471#M4462 AlexanderNelson 2014-02-13T16:09:31Z