Add Kroger to the list of supported providers

src/OpenIddict.Client.WebIntegration/OpenIddictClientWebIntegrationHandlers.Userinfo.cs

@@ -292,6 +292,10 @@ public static partial class OpenIddictClientWebIntegrationHandlers
                         ["accounts"] = context.Response["accounts"]
                     },
 
+                    // Kroger and Twitter return a nested "data" object.
+                    ProviderTypes.Kroger or ProviderTypes.Twitter => new(context.Response["data"]?.GetNamedParameters() ??
+                        throw new InvalidOperationException(SR.FormatID0334("data"))),
+
                     // Patreon returns a nested "attributes" object that is itself nested in a "data" node.
                     ProviderTypes.Patreon => new(context.Response["data"]?["attributes"]?.GetNamedParameters() ??
                         throw new InvalidOperationException(SR.FormatID0334("data/attributes"))),
@@ -313,10 +317,6 @@ public static partial class OpenIddictClientWebIntegrationHandlers
                         let name = $"{parameter.Key}_{node.Key}"
                         select new KeyValuePair<string, OpenIddictParameter>(name, node.Value)),
 
-                    // Twitter returns a nested "data" object.
-                    ProviderTypes.Twitter => new(context.Response["data"]?.GetNamedParameters() ??
-                        throw new InvalidOperationException(SR.FormatID0334("data"))),
-
                     _ => context.Response
                 };
 

src/OpenIddict.Client.WebIntegration/OpenIddictClientWebIntegrationProviders.xml

@@ -484,6 +484,53 @@
              Description="The URI used to access the Keycloak identity provider (including the realm, if applicable)" />
   </Provider>
 
+  <!--
+                                            ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
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+                                            ██ ▄▀███ ▀▀▄██ ███ ██ █▀▀██ ▄▄▄██ ▀▀▄██
+                                            ██ ██ ██ ██ ██ ▀▀▀ ██ ▀▀▄██ ▀▀▀██ ██ ██
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+  -->
+
+  <Provider Name="Kroger" Id="18d33123-6b95-4f73-89a4-6e3ecbaf79f0"
+            Documentation="https://developer.kroger.com/documentation/public/security/customer">
+    <Environment Name="Production" Issuer="https://www.kroger.com/">
+      <Configuration AuthorizationEndpoint="https://api.kroger.com/v1/connect/oauth2/authorize"
+                     TokenEndpoint="https://api.kroger.com/v1/connect/oauth2/token"
+                     UserinfoEndpoint="https://api.kroger.com/v1/identity/profile">
+        <GrantType Value="authorization_code" />
+        <GrantType Value="client_credentials" />
+        <GrantType Value="refresh_token" />
+
+        <TokenEndpointAuthMethod Value="client_secret_basic" />
+      </Configuration>
+
+      <!--
+        Note: Kroger requires sending the "profile.compact" scope to be able to use the userinfo endpoint.
+      -->
+
+      <Scope Name="profile.compact" Default="true" Required="true" />
+    </Environment>
+
+    <Environment Name="Certification" Issuer="https://www.kroger.com/">
+      <Configuration AuthorizationEndpoint="https://api-ce.kroger.com/v1/connect/oauth2/authorize"
+                     TokenEndpoint="https://api-ce.kroger.com/v1/connect/oauth2/token"
+                     UserinfoEndpoint="https://api-ce.kroger.com/v1/identity/profile">
+        <GrantType Value="authorization_code" />
+        <GrantType Value="client_credentials" />
+        <GrantType Value="refresh_token" />
+
+        <TokenEndpointAuthMethod Value="client_secret_basic" />
+      </Configuration>
+
+      <!--
+        Note: Kroger requires sending the "profile.compact" scope to be able to use the userinfo endpoint.
+      -->
+
+      <Scope Name="profile.compact" Default="true" Required="true" />
+    </Environment>
+  </Provider>
+
   <!--
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                                           ██ ████▄ ▄██ ▄▄▀██ ██ ██ ▄▄▄██ ▄▄▄ ██ ▄▄▄ ██