Add additional values into Authorize endpoint response

I integrate with Twilio and it requires me to produce a Twilio access token for client to work with their services. Is there an integration point with which I can add tw_access_token value into an Authorize endpoint response along with id_token and access_token?

PS: do you want such questions to be posted on StackOverflow?

[kevinchalet]

New plan: in 3.0, the ASP.NET Core host will natively support returning custom parameters set via the new AuthenticationProperties.Parameters property introduced in ASP.NET Core 2.1. Both challenge, sign-in (authorization and token responses) and sign-out will be supported. E.g:

var properties = new AuthenticationProperties(
    items: new Dictionary<string, string>(),
    parameters: new Dictionary<string, object>
    {
        ["boolean_parameter"] = true,
        ["integer_parameter"] = 42,
        ["string_parameter"] = "Bob l'Eponge",
        ["array_parameter"] = JsonSerializer.Deserialize<JsonElement>(@"[""Contoso"",""Fabrikam""]"),
        ["object_parameter"] = JsonSerializer.Deserialize<JsonElement>(@"{""parameter"":""value""}")
    });

return SignIn(principal, properties, OpenIddictServerAspNetCoreDefaults.AuthenticationScheme);

Note: a custom event handler will be required when using OpenIddict on OWIN, as AuthenticationProperties.Parameters doesn’t exist in the OWIN type.

[kevinchalet]

You’re welcome 😄