diff --git a/skygear/src/androidTest/java/io/skygear/skygear/LambdaRequestUnitTest.java b/skygear/src/androidTest/java/io/skygear/skygear/LambdaRequestUnitTest.java
index 6358f0c..8247f4c 100644
--- a/skygear/src/androidTest/java/io/skygear/skygear/LambdaRequestUnitTest.java
+++ b/skygear/src/androidTest/java/io/skygear/skygear/LambdaRequestUnitTest.java
@@ -97,17 +97,13 @@ public void testLambdaRequestCompatibleValueValidation() throws Exception {
                 (short) 3,
                 "3",
                 jsonObject,
-                jsonArray
+                jsonArray,
+                new Date()
         });
 
         request.validate();
     }
 
-    @Test(expected = InvalidParameterException.class)
-    public void testLambdaRequestIncompatibleValueValidation() throws Exception {
-        new LambdaRequest("test:op1", new Object[]{new Date()});
-    }
-
     @Test
     public void testLambdaRequestAllowNullArgumentWithMap() throws Exception {
         LambdaRequest request = new LambdaRequest(
@@ -146,29 +142,17 @@ public void testLambdaRequestCompatibleValueWithMapValidation() throws Exception
             put("key9", "3");
             put("key10", jsonObject);
             put("key11", jsonArray);
+            put("key12", new Date());
+            put("key13", new HashMap<String, Object>() {{
+                put("key13a", new Date());
+            }});
         }});
 
         request.validate();
     }
 
-    @Test(expected = InvalidParameterException.class)
-    public void testLambdaRequestIncompatibleValueWithMapValidation() throws Exception {
-        new LambdaRequest("test:op1", new HashMap<String, Object>() {{
-            put("key1", new Date());
-        }});
-    }
-
-    @Test(expected = InvalidParameterException.class)
-    public void testLambdaRequestIncompatibleNestedValueWithMapValidation() throws Exception {
-        new LambdaRequest("test:op1", new HashMap<String, Object>() {{
-            put("key1", new HashMap<String, Object>() {{
-                put("key2", new Date());
-            }});
-        }});
-    }
-
-    @Test(expected = InvalidParameterException.class)
-    public void testLambdaRequestIncompatibleNestedValueWithMapValidation2() throws Exception {
+    @Test
+    public void testLambdaRequestCompatibleNestedValueWithMapValidation1() throws Exception {
         final JSONObject object = new JSONObject();
         final JSONObject object2 = new JSONObject();
         object2.put("key2", new Date());
@@ -179,8 +163,8 @@ public void testLambdaRequestIncompatibleNestedValueWithMapValidation2() throws
     }
 
 
-    @Test(expected = InvalidParameterException.class)
-    public void testLambdaRequestIncompatibleNestedValueWithMapValidation3() throws Exception {
+    @Test
+    public void testLambdaRequestCompatibleNestedValueWithMapValidation2() throws Exception {
         final JSONArray object = new JSONArray();
         final JSONObject object2 = new JSONObject();
         object2.put("key2", new Date());
diff --git a/skygear/src/main/java/io/skygear/skygear/LambdaRequest.java b/skygear/src/main/java/io/skygear/skygear/LambdaRequest.java
index 2f7fc16..98ab601 100644
--- a/skygear/src/main/java/io/skygear/skygear/LambdaRequest.java
+++ b/skygear/src/main/java/io/skygear/skygear/LambdaRequest.java
@@ -48,6 +48,19 @@ public class LambdaRequest extends Request {
             Map.class
     ));
 
+    protected LambdaRequest(String name, Object args) {
+        super(name);
+
+        try {
+            this.data = new HashMap<>();
+            if (args != null) {
+                this.data.put("args", ValueSerializer.serialize(args));
+            }
+        } catch (JSONException ex) {
+            throw new InvalidParameterException(ex.getMessage());
+        }
+    }
+
     /**
      * Instantiates a new Skygear Lambda Function Request.
      *
@@ -55,22 +68,7 @@ public class LambdaRequest extends Request {
      * @param args the args
      */
     public LambdaRequest(String name, Object[] args) {
-        super(name);
-
-        this.data = new HashMap<>();
-
-        if (args != null) {
-            for (int idx = 0; idx < args.length; idx++) {
-                if (!this.isCompatibleArgument(args[idx])) {
-                    throw new InvalidParameterException(
-                            String.format("Argument at index %d is incompatible", idx)
-                    );
-                }
-            }
-
-            List<Object> argList = Arrays.asList(args);
-            this.data.put("args", new JSONArray(argList));
-        }
+        this(name, (Object)args);
     }
 
     /**
@@ -80,20 +78,7 @@ public LambdaRequest(String name, Object[] args) {
      * @param args the args
      */
     public LambdaRequest(String name, Map<String, Object> args) {
-        super(name);
-
-        this.data = new HashMap<>();
-
-        if (args != null) {
-            for (String key : args.keySet()) {
-                if (!this.isCompatibleArgument(args.get(key))) {
-                    throw new InvalidParameterException(
-                            String.format("Argument at index %s is incompatible", key)
-                    );
-                }
-            }
-            this.data.put("args", new JSONObject(args));
-        }
+        this(name, (Object)args);
     }
 
     private boolean isCompatibleArgument(Object[] array) {
diff --git a/skygear/src/main/java/io/skygear/skygear/TypedLambdaResponseHandler.java b/skygear/src/main/java/io/skygear/skygear/TypedLambdaResponseHandler.java
new file mode 100644
index 0000000..e1c07e7
--- /dev/null
+++ b/skygear/src/main/java/io/skygear/skygear/TypedLambdaResponseHandler.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2017 Oursky Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package io.skygear.skygear;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * The Skygear Typed Lambda Response Handler.
+ */
+public abstract class TypedLambdaResponseHandler<T extends Object> extends LambdaResponseHandler {
+    /**
+     * The success callback.
+     *
+     * @param result the result
+     */
+    public abstract void onLambdaSuccess(T result);
+
+    public void onLambdaSuccess(JSONObject result) {
+        this.onLambdaSuccess((T)result);
+    }
+
+    @Override
+    public void onSuccess(JSONObject result) {
+        try {
+            this.onLambdaSuccess((T)ValueSerializer.deserialize(result));
+        } catch (JSONException ex) {
+            this.onFail(new Error(ex.getMessage()));
+        } catch (ClassCastException ex) {
+            this.onFail(new Error(ex.getMessage()));
+        }
+    }
+}