Initial Version

shared/lib/Mail/Service/IServiceIdentityApiKey.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXF\Mail\Service;
+
+/**
+ * Mail Service API Key Identity Interface
+ * 
+ * API key authentication for transactional mail services (SendGrid, Mailgun, etc.)
+ * 
+ * @since 2025.05.01
+ */
+interface IServiceIdentityApiKey extends IServiceIdentity {
+
+    /**
+     * Gets the API key
+     * 
+     * @since 2025.05.01
+     * 
+     * @return string
+     */
+    public function getApiKey(): string;
+
+    /**
+     * Gets the optional API key identifier/name
+     * 
+     * @since 2025.05.01
+     * 
+     * @return string|null
+     */
+    public function getApiKeyId(): ?string;
+
+}