How to connect to Google Analytics with Oauth2 and the .net client library

GoogleAnalyticsOauth2

string[] scopes = new string[] {
        AnalyticsService.Scope.Analytics,               // view and manage your Google Analytics data
        AnalyticsService.Scope.AnalyticsEdit,           // Edit and manage Google Analytics Account
        AnalyticsService.Scope.AnalyticsManageUsers,    // Edit and manage Google Analytics Users
        AnalyticsService.Scope.AnalyticsReadonly};      // View Google Analytics Data

var clientId = "[Client ID]";      // From https://console.developers.google.com
var clientSecret = "xxx";          // From https://console.developers.google.com
// here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData%
var credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = clientId,
                                                                                 ClientSecret = clientSecret},
                                                            scopes,
                                                            Environment.UserName,
                                                            CancellationToken.None,
                                                            new FileDataStore("Daimto.GoogleAnalytics.Auth.Store")).Result;