Add customization config for apigateway

Author: zoewangg

services/apigateway/pom.xml

@@ -57,6 +57,16 @@
             <artifactId>protocol-core</artifactId>
             <version>${awsjavasdk.version}</version>
         </dependency>
+        <dependency>
+            <groupId>software.amazon.awssdk</groupId>
+            <artifactId>json-utils</artifactId>
+            <version>${awsjavasdk.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>software.amazon.awssdk</groupId>
+            <artifactId>endpoints-spi</artifactId>
+            <version>${awsjavasdk.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>

services/apigateway/src/main/resources/codegen-resources/customization.config

@@ -20,5 +20,6 @@
     "getVpcLinks",
     "createApiKey",
     "generateClientCertificate"
-  ]
+  ],
+  "useRuleBasedEndpoints": true
 }