diff --git a/Dockerfile b/Dockerfile
index d3a6c8e..a37c889 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,3 +12,4 @@ RUN apt-get update \
     && wget https://getcomposer.org/installer \
     && chmod +x installer \
     && php installer --install-dir=/usr/local/bin/ --filename=composer \
+    && npm install -g dredd --no-optional
diff --git a/features/failing_transaction.feature b/features/failing_transaction.feature
index 8c76d83..8432f87 100644
--- a/features/failing_transaction.feature
+++ b/features/failing_transaction.feature
@@ -26,7 +26,7 @@ Feature: Failing a transaction
           flush();
       });
       """
-    When I run `dredd ./apiary.apib http://localhost:4567 --server "nodejs server.js" --language php --hookfiles failedhook.php --loglevel debug`
+    When I run `dredd ./apiary.apib http://localhost:4567 --server "node server.js" --language php --hookfiles failedhook.php --loglevel debug`
     Then the exit status should be 1
     And the output should contain:
       """
diff --git a/features/transaction_object.feature b/features/transaction_object.feature
new file mode 100644
index 0000000..1affdba
--- /dev/null
+++ b/features/transaction_object.feature
@@ -0,0 +1,32 @@
+Feature: Failing a transaction
+
+  Background:
+    Given I have dredd-hooks-php installed
+    Given I have Dredd installed
+    And a file named "apiary.apib" with:
+      """
+      # My Api
+      ## GET /message
+      + Response 200 (text/html)
+      """
+    And a file "server.js" with a server responding on "http://localhost:4567/message" with "Hello World!"
+
+  @announce
+  Scenario:
+    Given a file named "hook_transaction_object.php" with:
+      """
+      <?php
+
+      use Dredd\DataObjects\Transaction;
+      use Dredd\Hooks;
+
+      Hooks::beforeEach(function(Transaction &$transaction) {
+
+          echo 'Transaction object';
+      });
+      """
+    When I run `dredd ./apiary.apib http://localhost:4567 --server "node server.js" --language php --hookfiles hook_transaction_object.php --loglevel debug`
+    Then the output should contain:
+      """
+      Transaction object
+      """
diff --git a/hooks/hook_transaction_object.php b/hooks/hook_transaction_object.php
new file mode 100644
index 0000000..9261266
--- /dev/null
+++ b/hooks/hook_transaction_object.php
@@ -0,0 +1,9 @@
+<?php
+
+use Dredd\DataObjects\Transaction;
+use Dredd\Hooks;
+
+Hooks::beforeEach(function(Transaction &$transaction) {
+
+    echo 'Transaction object';
+});
diff --git a/src/DataObjects/ExpectedResponse.php b/src/DataObjects/ExpectedResponse.php
new file mode 100644
index 0000000..aa8b724
--- /dev/null
+++ b/src/DataObjects/ExpectedResponse.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Dredd\DataObjects;
+
+class ExpectedResponse
+{
+    /** @var string $statusCode */
+    public $statusCode;
+
+    /**
+     * Keys are HTTP header names, values are HTTP header contents
+     *
+     * @var array<string,string>
+     */
+    public $headers;
+
+    /** @var string $body */
+    public $body;
+
+    /**
+     * JSON Schema of the response body
+     *
+     * @var object $bodySchema
+     */
+    public $bodySchema;
+
+    public function __construct($expected)
+    {
+        $this->statusCode = $expected->statusCode;
+        $this->headers = (array) $expected->headers;
+        $this->body = $expected->body;
+        $this->bodySchema = $expected->bodySchema;
+    }
+}
diff --git a/src/DataObjects/Origin.php b/src/DataObjects/Origin.php
new file mode 100644
index 0000000..18a585c
--- /dev/null
+++ b/src/DataObjects/Origin.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Dredd\DataObjects;
+
+/**
+ * Reference to the transaction definition in the original API description document.
+ * (See also {@link https://github.com/apiaryio/dredd-transactions#user-content-data-structures Dredd Transactions})
+ */
+class Origin
+{
+    /** @var string $filename */
+    public $filename;
+
+    /** @var string $apiName */
+    public $apiName;
+
+    /** @var string $resourceGroupName */
+    public $resourceGroupName;
+
+    /** @var string $resourceName */
+    public $resourceName;
+
+    /** @var string $actionName */
+    public $actionName;
+
+    /** @var string $exampleName */
+    public $exampleName;
+
+    public function __construct($origin)
+    {
+        $this->filename = $origin->filename;
+        $this->apiName = $origin->apiName;
+        $this->resourceGroupName = $origin->resourceGroupName;
+        $this->resourceName = $origin->resourceName;
+        $this->actionName = $origin->actionName;
+        $this->exampleName = $origin->exampleName;
+    }
+}
diff --git a/src/DataObjects/RealResponse.php b/src/DataObjects/RealResponse.php
new file mode 100644
index 0000000..7f0e5db
--- /dev/null
+++ b/src/DataObjects/RealResponse.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Dredd\DataObjects;
+
+class RealResponse
+{
+    /** @var string $statusCode */
+    public $statusCode;
+
+    /**
+     * Keys are HTTP header names, values are HTTP header contents
+     *
+     * @var object
+     */
+    public $headers;
+
+    /** @var string $body */
+    public $body;
+
+    /**
+     *  - `utf-8` (string) - indicates `body` contains a textual content encoded in UTF-8
+     *  - `base64` (string) - indicates `body` contains a binary content encoded in Base64
+     *
+     * @var string $bodyEncoding
+     * @psalm-var 'utf-8'|'base64' $bodyEncoding
+     */
+    public $bodyEncoding;
+
+    public function __construct($expected)
+    {
+        $this->statusCode = $expected->statusCode;
+        $this->headers = $expected->headers;
+        $this->body = $expected->body;
+        $this->bodyEncoding = $expected->bodyEncoding;
+    }
+}
diff --git a/src/DataObjects/Request.php b/src/DataObjects/Request.php
new file mode 100644
index 0000000..e62b499
--- /dev/null
+++ b/src/DataObjects/Request.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Dredd\DataObjects;
+
+class Request
+{
+    /** @var string $body */
+    public $body;
+
+    /**
+     * Can be manually set in {@link https://dredd.org/en/latest/hooks/index.html#hooks hooks}
+     *  - `utf-8` (string) - indicates `body` contains a textual content encoded in UTF-8
+     *  - `base64` (string) - indicates `body` contains a binary content encoded in Base64
+     *
+     * @var string $bodyEncoding
+     * @psalm-var 'utf-8'|'base64' $bodyEncoding
+     */
+    public $bodyEncoding;
+
+    /**
+     * Keys are HTTP header names, values are HTTP header contents
+     * @var array<string,string> $headers
+     */
+    public $headers;
+
+    /**
+     * Request URI as it was written in API description
+     *
+     * @var string $uri
+     */
+    public $uri;
+
+    /** @var string $method */
+    public $method;
+
+    public function __construct($request)
+    {
+        $this->body = $request->body;
+        $this->bodyEncoding = $request->bodyEncoding;
+        $this->headers = (array) $request->headers;
+        $this->uri = $request->uri;
+        $this->method = $request->method;
+    }
+}
diff --git a/src/DataObjects/Transaction.php b/src/DataObjects/Transaction.php
new file mode 100644
index 0000000..6174669
--- /dev/null
+++ b/src/DataObjects/Transaction.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Dredd\DataObjects;
+
+use stdClass;
+
+/**
+ * Transaction object is passed as a first argument to
+ *  {@link https://dredd.org/en/latest/hooks/index.html#hooks hook functions}
+ *  and is one of the main public interfaces in Dredd.
+ *
+ * @link https://dredd.org/en/latest/data-structures.html#transaction-object
+ */
+class Transaction
+{
+    /** @var string $id */
+    public $id;
+
+    /**
+     * Reference to the transaction definition in the original API description document
+     * (See also {@link https://github.com/apiaryio/dredd-transactions#user-content-data-structures Dredd Transactions})
+     *
+     * @var string $name
+     */
+    public $name;
+
+    /** @var string $host */
+    public $host;
+
+    /** @var int $port */
+    public $port;
+
+    /** @var string $protocol */
+    public $protocol;
+
+    /**
+     * Expanded URI Template with parameters (if any) used for the HTTP request Dredd performs to the tested server
+     *
+     * @link https://tools.ietf.org/html/rfc6570.html
+     * @var string $fullPath
+     */
+    public $fullPath;
+
+    /**
+     * Can be set to `true` and the transaction will be skipped
+     *
+     * @var bool $skip
+     */
+    public $skip;
+
+    /**
+     * Can be set to `true` or string and the transaction will fail
+     *  - (string) - failure message with details why the transaction failed
+     *  - (boolean)
+     * @var bool|string $fail
+     */
+    public $fail;
+
+    /** @var Origin $origin */
+    public $origin;
+
+    /**
+     * Test data passed to Dredd’s reporters
+     *
+     * @link https://dredd.org/en/latest/data-structures.html#transaction-test
+     * @var object
+     */
+    public $test;
+
+    /**
+     * Transaction runtime errors
+     *
+     * Whenever an exception occurs during a test run it’s being recorded under the errors property of the test.
+     *
+     * @link https://dredd.org/en/latest/data-structures.html#test-runtime-error
+     * @var object
+     */
+    public $errors;
+
+    /**
+     * Transaction result equals to the result of the
+     *  {@link https://github.com/apiaryio/gavel.js Gavel} validation library.
+     *
+     * @link https://dredd.org/en/latest/data-structures.html#transaction-results
+     * @var object
+     */
+    public $results;
+
+    /**
+     * The HTTP request Dredd performs to the tested server, taken from the API description
+     * @var Request $request
+     */
+    public $request;
+
+    /** @var ExpectedResponse $expected */
+    public $expected;
+
+    /** @var RealResponse $real */
+    public $real;
+
+    public function __construct($transaction)
+    {
+        $this->id = $transaction->id;
+        $this->name = $transaction->name;
+        $this->host = $transaction->host;
+        $this->port = $transaction->port;
+        $this->protocol = $transaction->protocol;
+        $this->fullPath = $transaction->fullPath;
+        $this->skip = $transaction->skip ?? false;
+        $this->fail = $transaction->fail ?? false;
+        $this->errors = $transaction->errors ?? new stdClass();
+        $this->results = $transaction->results ?? new stdClass();
+        $this->origin = new Origin($transaction->origin);
+        $this->request = new Request($transaction->request);
+        $this->expected = new ExpectedResponse($transaction->expected);
+        $this->real = new RealResponse($transaction->real);
+    }
+}
diff --git a/src/Server.php b/src/Server.php
index da9f1cc..69df5f5 100644
--- a/src/Server.php
+++ b/src/Server.php
@@ -1,6 +1,7 @@
 <?php namespace Dredd;
 
 use UnexpectedValueException;
+use Dredd\DataObjects\Transaction;
 
 class Server
 {
@@ -69,7 +70,7 @@ public function run($force = false)
     public function processMessage($message, $client)
     {
         $event = $message->event;
-        $data = $message->data;
+        $data = new Transaction($message->data);
         $uuid = $message->uuid;
 
         if ($event == "beforeEach") {
diff --git a/tests/DreddHooksTest.php b/tests/DreddHooksTest.php
index a79bed0..aed7a58 100644
--- a/tests/DreddHooksTest.php
+++ b/tests/DreddHooksTest.php
@@ -1,5 +1,6 @@
 <?php
 
+use Dredd\DataObjects\Transaction;
 use Dredd\Hooks;
 use PHPUnit\Framework\TestCase;
 
@@ -117,4 +118,49 @@ public function it_can_get_hooks_with_wildcards()
         $this->assertCount(1, $hooks);
         $this->assertTrue(is_a($hooks[0], $this->className), sprintf("Expected %s received %s", $this->className, get_class($hooks[0])));
     }
+
+    public function it_can_pass_a_transaction_object()
+    {
+        $transaction = new Transaction((object)[
+            'id' => 'test',
+            'name' => 'test',
+            'host' => '127.0.0.1',
+            'port' => '12345',
+            'protocol' => 'http',
+            'fullPath' => 'http://127.0.0.1:12345/path',
+            'request' => [
+                'body' => '{}',
+                'bodyEncoding' => 'utf8',
+                'headers' => [],
+                'uri' => 'http://127.0.0.1:12345/path',
+                'method' => 'GET',
+            ],
+            'origin' => [
+                'filename' => 'test.apib',
+                'apiName' => 'test',
+                'resourceGroupName' => '',
+                'resourceName' => '',
+                'actionName' => '',
+                'exampleName' => '',
+            ],
+            'expected' => [
+                'statusCode' => 200,
+                'headers' => [],
+                'body' => '{}',
+                'bodySchema' => new stdClass(),
+            ],
+            'real' => [
+                'statusCode' => 200,
+                'headers' => [],
+                'body' => '{}',
+                'bodyEncoding' => 'utf8',
+            ],
+        ]);
+
+        Hooks::before('Admin > *', function(&$transaction) {
+            $this->assertInstanceOf(Transaction::class, $transaction);
+        });
+
+        $hooks = Hooks::getCallbacksForName('beforeHooks', $transaction);
+    }
 }