UWP

Use the NuGet Package Manager Console (Tools -> NuGet Package Manager -> Package Manager Console) to install the Auth0.OidcClient.UWP package, running the command:

Install-Package Auth0.OidcClient.UWP

To integrate Auth0 login into your application, simply instantiate an instance of the Auth0Client class, configuring the Auth0 Domain and Client ID:

// MainPage.xaml.cs

using Auth0.OidcClient;

var client = new Auth0Client(new Auth0ClientOptions
{
    Domain = "{yourDomain}",
    ClientId = "{yourClientId}"
});

You can then call the LoginAsync method to log the user in:

var loginResult = await client.LoginAsync();

This will load the Auth0 login page into a web view. You can learn how to customize the login page in this document.

The returned login result will indicate whether authentication was successful, and if so contain the tokens and claims of the user.

You can check the IsError property of the result to see whether the login has failed. The ErrorMessage will contain more information regarding the error which occurred.

if (loginResult.IsError)
{
    Debug.WriteLine($"An error occurred during login: {loginResult.Error}")
}

On successful login, the login result will contain the ID Token and Access Token in the IdentityToken and AccessToken properties respectively.

if (!loginResult.IsError)
{
    Debug.WriteLine($"id_token: {loginResult.IdentityToken}");
    Debug.WriteLine($"access_token: {loginResult.AccessToken}");
}

On successful login, the login result will contain the user information in the User property, which is a ClaimsPrincipal.

To obtain information about the user, you can query the claims. You can for example obtain the user's name and email address from the name and email claims:

if (!loginResult.IsError)
{
    Debug.WriteLine($"name: {loginResult.User.FindFirst(c => c.Type == "name")?.Value}");
    Debug.WriteLine($"email: {loginResult.User.FindFirst(c => c.Type == "email")?.Value}");
}

You can obtain a list of all the claims contained in the ID Token by iterating through the Claims collection:

if (!loginResult.IsError)
{
    foreach (var claim in loginResult.User.Claims)
    {
        Debug.WriteLine($"{claim.Type} = {claim.Value}");
    }
}

To log the user out call the LogoutAsync method.

await client.LogoutAsync();