Add output caching to the Delivery API (#15216)

src/Umbraco.Core/Configuration/Models/DeliveryApiSettings.cs

@@ -59,6 +59,11 @@ public class DeliveryApiSettings
     /// </summary>
     public MemberAuthorizationSettings? MemberAuthorization { get; set; } = null;
 
+    /// <summary>
+    ///     Gets or sets the settings for the Delivery API output cache.
+    /// </summary>
+    public OutputCacheSettings OutputCache { get; set; } = new ();
+
     /// <summary>
     ///     Gets a value indicating if any member authorization type is enabled for the Delivery API.
     /// </summary>
@@ -138,4 +143,42 @@ public class DeliveryApiSettings
         /// <remarks>These are only required if logout is to be used.</remarks>
         public Uri[] LogoutRedirectUrls { get; set; } = Array.Empty<Uri>();
     }
+
+    /// <summary>
+    ///     Typed configuration options for output caching of the Delivery API.
+    /// </summary>
+    public class OutputCacheSettings
+    {
+        private const string StaticDuration = "00:01:00"; // one minute
+
+        /// <summary>
+        ///     Gets or sets a value indicating whether the Delivery API output should be cached.
+        /// </summary>
+        /// <value><c>true</c> if the Delivery API output should be cached; otherwise, <c>false</c>.</value>
+        /// <remarks>
+        ///     The default value is <c>false</c>.
+        /// </remarks>
+        [DefaultValue(StaticEnabled)]
+        public bool Enabled { get; set; } = StaticEnabled;
+
+        /// <summary>
+        ///     Gets or sets a value indicating how long the Content Delivery API output should be cached.
+        /// </summary>
+        /// <value>Cache lifetime.</value>
+        /// <remarks>
+        ///     The default cache duration is one minute, if this configuration value is not provided.
+        /// </remarks>
+        [DefaultValue(StaticDuration)]
+        public TimeSpan ContentDuration { get; set; } = TimeSpan.Parse(StaticDuration);
+
+        /// <summary>
+        ///     Gets or sets a value indicating how long the Media Delivery API output should be cached.
+        /// </summary>
+        /// <value>Cache lifetime.</value>
+        /// <remarks>
+        ///     The default cache duration is one minute, if this configuration value is not provided.
+        /// </remarks>
+        [DefaultValue(StaticDuration)]
+        public TimeSpan MediaDuration { get; set; } = TimeSpan.Parse(StaticDuration);
+    }
 }