diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/ApplicationLoadBalancerRequestEvent.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/ApplicationLoadBalancerRequestEvent.java
index fca77846..4f2308c5 100644
--- a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/ApplicationLoadBalancerRequestEvent.java
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/ApplicationLoadBalancerRequestEvent.java
@@ -13,6 +13,9 @@
 
 package com.amazonaws.services.lambda.runtime.events;
 
+import com.amazonaws.services.lambda.runtime.events.apigateway.HttpRequestEvent;
+import com.amazonaws.services.lambda.runtime.events.apigateway.RequestSource;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -34,7 +37,13 @@
 @Builder(setterPrefix = "with")
 @NoArgsConstructor
 @AllArgsConstructor
-public class ApplicationLoadBalancerRequestEvent implements Serializable  {
+public class ApplicationLoadBalancerRequestEvent implements Serializable, HttpRequestEvent {
+
+    @Override
+    @JsonIgnore
+    public RequestSource getRequestSource() {
+        return RequestSource.ALB;
+    }
 
     @Data
     @Builder(setterPrefix = "with")
diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/AwsProxyResponseEvent.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/AwsProxyResponseEvent.java
new file mode 100644
index 00000000..b8ec7bce
--- /dev/null
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/AwsProxyResponseEvent.java
@@ -0,0 +1,33 @@
+package com.amazonaws.services.lambda.runtime.events;
+
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ Common response class for APIGateway and ALB
+ */
+@NoArgsConstructor
+@Data
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class AwsProxyResponseEvent {
+    private static final long serialVersionUID = 2263167344670024138L;
+
+    private Integer statusCode;
+
+    private String statusDescription;
+
+    private List<String> cookies;
+
+    private Map<String, String> headers;
+
+    private Map<String, List<String>> multiValueHeaders;
+
+    private String body;
+
+    private Boolean isBase64Encoded;
+}
diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayProxyRequestEvent.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayProxyRequestEvent.java
index 0d8f3378..6c2761cc 100644
--- a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayProxyRequestEvent.java
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayProxyRequestEvent.java
@@ -13,6 +13,7 @@
 
 package com.amazonaws.services.lambda.runtime.events.apigateway;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -30,7 +31,7 @@
 @Builder(setterPrefix = "with")
 @NoArgsConstructor
 @AllArgsConstructor
-public class APIGatewayProxyRequestEvent implements Serializable {
+public class APIGatewayProxyRequestEvent implements Serializable, HttpRequestEvent {
 
     private static final long serialVersionUID = 4189228800688527467L;
 
@@ -47,6 +48,12 @@ public class APIGatewayProxyRequestEvent implements Serializable {
     private String body;
     private Boolean isBase64Encoded;
 
+    @Override
+    @JsonIgnore
+    public RequestSource getRequestSource() {
+        return RequestSource.API_GATEWAY_REST;
+    }
+
     /**
      * class that represents proxy request context
      */
diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayV2HTTPEvent.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayV2HTTPEvent.java
index d2f713ad..4ba5e5a8 100644
--- a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayV2HTTPEvent.java
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/APIGatewayV2HTTPEvent.java
@@ -13,6 +13,7 @@
 
 package com.amazonaws.services.lambda.runtime.events.apigateway;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -30,7 +31,7 @@
 @Builder(setterPrefix = "with")
 @Data
 @NoArgsConstructor
-public class APIGatewayV2HTTPEvent {
+public class APIGatewayV2HTTPEvent implements HttpRequestEvent {
 
     private String version;
     private String routeKey;
@@ -45,6 +46,12 @@ public class APIGatewayV2HTTPEvent {
     private boolean isBase64Encoded;
     private RequestContext requestContext;
 
+    @Override
+    @JsonIgnore
+    public RequestSource getRequestSource() {
+        return RequestSource.API_GATEWAY_HTTP;
+    }
+
     @AllArgsConstructor
     @Builder(setterPrefix = "with")
     @Data
diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/HttpRequestEvent.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/HttpRequestEvent.java
new file mode 100644
index 00000000..280ebd58
--- /dev/null
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/HttpRequestEvent.java
@@ -0,0 +1,8 @@
+package com.amazonaws.services.lambda.runtime.events.apigateway;
+
+/**
+ * A common interface shared by event sources which produce HTTP as JSON
+ */
+public interface HttpRequestEvent {
+    RequestSource getRequestSource();
+}
diff --git a/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/RequestSource.java b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/RequestSource.java
new file mode 100644
index 00000000..5c0bd19a
--- /dev/null
+++ b/aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/apigateway/RequestSource.java
@@ -0,0 +1,7 @@
+package com.amazonaws.services.lambda.runtime.events.apigateway;
+
+public enum RequestSource {
+    API_GATEWAY_REST,
+    API_GATEWAY_HTTP,
+    ALB
+}