diff --git a/.gitignore b/.gitignore
index 9d4074f..eb677cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,8 @@ leancloud-utils/.project
 leancloud-utils/.settings
 leancloud-utils/.classpath
 /target/
+*.iml
+.idea
+.idea/*
+
+
diff --git a/src/main/java/com/avos/avoscloud/AVPush.java b/src/main/java/com/avos/avoscloud/AVPush.java
index 165fe63..7a3e218 100644
--- a/src/main/java/com/avos/avoscloud/AVPush.java
+++ b/src/main/java/com/avos/avoscloud/AVPush.java
@@ -41,6 +41,8 @@ public class AVPush {
   private volatile AVObject notification;
   private Date pushDate = null;
   private boolean production = true;
+  private String reqId;
+  private String notificationId;
 
   static {
     AVPowerfulUtils.createSettings(AVPush.class.getSimpleName(), "push", "");
@@ -97,6 +99,14 @@ public Map<String, Object> getPushData() {
     return pushData;
   }
 
+  public String getReqId() {
+    return reqId;
+  }
+
+  public String getNotificationId() {
+    return notificationId;
+  }
+
   /**
    * Clears both expiration values, indicating that the notification should never expire.
    */
@@ -225,6 +235,14 @@ private Map<String, Object> postDataMap() throws AVException {
       map.put("push_time", AVUtils.stringFromDate(pushDate));
     }
 
+    if(this.reqId != null) {
+      map.put("req_id", reqId);
+    }
+
+    if(this.notificationId != null) {
+      map.put("notification_id", notificationId);
+    }
+
     if (!production) {
       map.put("prod", "dev");
     }
@@ -493,4 +511,29 @@ public boolean getProductionMode() {
   public void setProductionMode(boolean production) {
     this.production = production;
   }
+
+  /**
+   * Different push requests with the same req id in 5 minutes are considered duplicate requests and will
+   * only be sent once. User can use the unique req id in the request to retry the request when getting an
+   * exception such as timeout, to avoid missing messages. We will automatically filter the repeated push
+   * requests to ensure that each target end user will only receive push messages at most once.
+   *
+   * @param Custom request id, up to 16 characters and can only consist of English letters and numbers.
+   */
+  public void setReqId(String reqId) {
+    this.reqId = reqId;
+  }
+
+  /**
+   * When this parameter is NOT provided, we will randomly assign a unique notification id for each push request to
+   * distinguish different pushes. We will use the notification id to count the number of push target devices and
+   * final message arrivals, and show them in the push record. The user-defined notification id can combine multiple
+   * different requests into the same notification id so as to overall count the target device number and the final
+   * message arrival number of the batch of push requests.
+   *
+   * @param Custom notification id, up to 16 characters and can only consist of English letters and numbers.
+   */
+  public void setNotificationId(String notificationId) {
+    this.notificationId = notificationId;
+  }
 }