diff --git a/Classes_cocos/JcWallet.mm b/Classes_cocos/JcWallet.mm
index 66768d2..080f769 100644
--- a/Classes_cocos/JcWallet.mm
+++ b/Classes_cocos/JcWallet.mm
@@ -643,6 +643,28 @@ static bool JSB_authGetStoragePass(se::State& s)
 }
 SE_BIND_FUNC(JSB_authGetStoragePass)
 
+static bool JSB_getClientId(se::State &s)
+{
+  const auto &args = s.args();
+  size_t argc = args.size();
+  CC_UNUSED bool ok = true;
+  if (argc > 0)
+  {
+    std::string funid;
+    ok = seval_to_std_string(args[0], &funid);
+    SE_PRECONDITION2(ok, false, "Error processing funid");
+    NSString *nfunid = [NSString stringWithCString:funid.c_str() encoding: NSUTF8StringEncoding];
+    dispatch_async(dispatch_get_main_queue(), ^{
+      UIWindow* window = [[[UIApplication sharedApplication] delegate] window];
+      [window.rootViewController clientLogin:nfunid ];
+    });
+    return true;
+  }
+
+  SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d", (int)argc, 1);
+  return false;
+}
+SE_BIND_FUNC(JSB_getClientId)
 
 bool jsb_register_walletevent_modules(se::Object* global) {
     getOrCreatePlainObject_r("jsb", global, &__jsbObj);
@@ -662,6 +684,7 @@ bool jsb_register_walletevent_modules(se::Object* global) {
     __jsbObj->defineFunction("beginBuy", _SE(JSB_beginBuy));
     __jsbObj->defineFunction("authGetStoragePass", _SE(JSB_authGetStoragePass));
     __jsbObj->defineFunction("storagePass", _SE(JSB_storagePass));
+    __jsbObj->defineFunction("getClientId", _SE(JSB_getClientId));
     __jsbObj->defineFunction("passStorageState", _SE(JSB_passStorageState));
   // JSB_signWithEmail
   // JSB_beginBuyJNI
diff --git a/Classes_cocos/UIViewController+Wallet.h b/Classes_cocos/UIViewController+Wallet.h
index 9b74c33..7d8c697 100644
--- a/Classes_cocos/UIViewController+Wallet.h
+++ b/Classes_cocos/UIViewController+Wallet.h
@@ -18,6 +18,7 @@
 - (void)signWithFacebook:(NSString *)funid;
 - (void)signWithTwitter:(NSString *)funid;
 - (void)signOutGoogle:(NSString *)funid;
+- (void)clientLogin:(NSString *)funid;
 - (void)saveKey:(NSString *)account key:(NSString *)key;
 - (NSString *)loadKey:(NSString *)account;
 - (void)showPage:(NSString *)url;
diff --git a/Classes_cocos/UIViewController+Wallet.mm b/Classes_cocos/UIViewController+Wallet.mm
index b880c43..76cfe3b 100644
--- a/Classes_cocos/UIViewController+Wallet.mm
+++ b/Classes_cocos/UIViewController+Wallet.mm
@@ -61,6 +61,23 @@ static WebPageViewController *webpageVC = nil;
   }];
 }
 
+-(void)clientLogin:(NSString *) funid {
+  NSString *clientKey = @"game_client_id";
+  NSString *clientID = [self loadKey:clientKey];
+  // if clientID is empty, then generate a new one with uuid
+  if ([NSString isStringEmpty:clientID]) {
+    NSString *pre_id = [[NSUUID UUID] UUIDString];
+    // cast pre_id to lower case
+    std::string uuid = [[pre_id lowercaseString] UTF8String];
+    std::string clientIdStr = generate_clientid(uuid);
+    clientID = [NSString stringWithUTF8String:clientIdStr.c_str()];
+    NSLog(@"new clientID: %@", clientID);
+    [self saveKey:clientKey key:clientID];
+  }
+  NSLog(@"clientID: %@", clientID);
+  [self nativeCb:funid hasErr:NO dataStr: clientID];
+}
+
 -(void) refreshTokenID:(GIDGoogleUser *)user funid:(NSString*) funid{
   [user.authentication doWithFreshTokens:^(GIDAuthentication * _Nullable authentication,
                                            NSError * _Nullable error) {