Merge pull request 'Passing token hint during signout' (#92) from payments into master

Reviewed-on: #92

LiteCharms.Features/Extensions/Api.cs

@@ -102,16 +102,17 @@ public static class Api
             });
         });
 
-        app.MapGet("/logout", async (HttpContext context, IHttpClientFactory httpClientFactory, IOptions<LiteCharmsSettings> settings) =>
+        app.MapGet("/logout", async (HttpContext context) =>
         {
+            var idToken = await context.GetTokenAsync("id_token");
+
+            var authProperties = new AuthenticationProperties { RedirectUri = "/", };
+
+            if (!string.IsNullOrEmpty(idToken)) 
+                authProperties.Parameters.Add("id_token_hint", idToken);
+
+            await context.SignOutAsync(OpenIdConnectDefaults.AuthenticationScheme, authProperties);
             await context.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
-
-            string currentBaseUrl = $"https://{context.Request.Host}{context.Request.PathBase}/";
-
-            await context.SignOutAsync(OpenIdConnectDefaults.AuthenticationScheme, new AuthenticationProperties
-            {
-                RedirectUri = currentBaseUrl,
-            });
         });
 
         return app;