diff --git a/src/main/java/com/microsoft/azure/functions/annotation/EventGridOutput.java b/src/main/java/com/microsoft/azure/functions/annotation/EventGridOutput.java
index ffbf4cd..8f7726f 100644
--- a/src/main/java/com/microsoft/azure/functions/annotation/EventGridOutput.java
+++ b/src/main/java/com/microsoft/azure/functions/annotation/EventGridOutput.java
@@ -66,7 +66,7 @@
      * here: https://docs.microsoft.com/en-us/azure/event-grid/custom-event-quickstart#send-an-event-to-your-topic
      * @return The topic key setting of the eventGrid topic.
      */
-    String topicKeySetting();
+    String topicKeySetting() default "";
 
     /**
      * Gets or sets the topic events endpoint URI. Eg: https://topic1.westus2-1.eventgrid.azure.net/api/events
@@ -74,5 +74,13 @@
      * here: https://docs.microsoft.com/en-us/azure/event-grid/custom-event-quickstart#send-an-event-to-your-topic
      * @return The topic events endpoint URI of the eventGrid topic.
      */
-    String topicEndpointUri();
+    String topicEndpointUri() default "";
+
+    /**
+     * Defines the common prefix for app settings that configure an identity-based connection.
+     * When set, topicEndpointUri and topicKeySetting should not be set.
+     *
+     * @return The common prefix for the identity-based connection settings.
+     */
+    String connection() default "";
 }
diff --git a/src/test/java/com/microsoft/azure/functions/annotation/BindingTest.java b/src/test/java/com/microsoft/azure/functions/annotation/BindingTest.java
index 2ed6484..13f4200 100644
--- a/src/test/java/com/microsoft/azure/functions/annotation/BindingTest.java
+++ b/src/test/java/com/microsoft/azure/functions/annotation/BindingTest.java
@@ -37,6 +37,13 @@ public void every_binding_annotation_should_have_dataType_method() {
         }
     }
 
+    @Test
+    public void event_grid_output_should_support_identity_based_connection() throws NoSuchMethodException {
+        assertEquals("", EventGridOutput.class.getMethod("connection").getDefaultValue());
+        assertEquals("", EventGridOutput.class.getMethod("topicEndpointUri").getDefaultValue());
+        assertEquals("", EventGridOutput.class.getMethod("topicKeySetting").getDefaultValue());
+    }
+
     /**
      * find all annotation bindings based on annotation suffix conventions defined in bindingAnnotationSuffix array
      */