diff --git a/ErrorHandlerTrait.php b/ErrorHandlerTrait.php
index 549c6b1..2031b74 100644
--- a/ErrorHandlerTrait.php
+++ b/ErrorHandlerTrait.php
@@ -9,6 +9,18 @@ trait ErrorHandlerTrait
 {
     public $rollbarComponentName = 'rollbar';
 
+    /**
+     * @var callable Callback returning a payload data associative array or null
+     * Example:
+     * function (ErrorHandler $errorHandler) {
+     *     return [
+     *         'foo' => 'bar',
+     *         'xyz' => getSomeData(),
+     *     ];
+     * }
+     */
+    public $payloadDataCallback;
+
     public function handleException($exception)
     {
         $ignoreException = false;
@@ -28,7 +40,7 @@ public function handleException($exception)
         }
 
         if (!$ignoreException) {
-            Rollbar::report_exception($exception);
+            Rollbar::report_exception($exception, null, $this->getPayloadData());
         }
 
         parent::handleException($exception);
@@ -47,4 +59,23 @@ public function handleFatalError()
 
         parent::handleFatalError();
     }
+
+    private function getPayloadData()
+    {
+        if (!isset($this->payloadDataCallback)) {
+            return null;
+        }
+
+        if (!is_callable($this->payloadDataCallback)) {
+            throw new \Exception('Incorrect callback provided');
+        }
+
+        $payloadData = call_user_func($this->payloadDataCallback, $this);
+
+        if (!is_array($payloadData) && !is_null($payloadData)) {
+            throw new \Exception('Callback returns an incorrect result');
+        }
+
+        return $payloadData;
+    }
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index c01bd5d..986fc56 100644
--- a/README.md
+++ b/README.md
@@ -15,11 +15,11 @@ The preferred way to install this extension is through [composer](http://getcomp
 
  To install, either run
  ```
- $ php composer.phar require baibaratsky/yii2-rollbar:1.2.*
+ $ php composer.phar require baibaratsky/yii2-rollbar:1.3.*
  ```
  or add
  ```
- "baibaratsky/yii2-rollbar": "1.2.*"
+ "baibaratsky/yii2-rollbar": "1.3.*"
  ```
  to the `require` section of your `composer.json` file.
 
@@ -48,6 +48,14 @@ Usage
  'components' => [
      'errorHandler' => [
          'class' => 'baibaratsky\yii\rollbar\web\ErrorHandler',
+         
+         // You can include additional data in a payload:
+         // 'payloadDataCallback' => function (\baibaratsky\yii\rollbar\web\ErrorHandler $errorHandler) {
+         //     return [
+         //         'exceptionCode' => $errorHandler->exception->getCode(),
+         //         'rawRequestBody' => Yii::$app->request->getRawBody(),
+         //     ];
+         // },
      ],
  ],
  ```