Add a User-Agent header for API calls.

CHANGELOG.md

@@ -5,6 +5,9 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Added
+* Send a User-Agent header with API requests.
+
 ### Changed
 * When GitHub is generating archieves, are few files with metadata are excluded.
 

src/Client.php

@@ -31,6 +31,7 @@ public function __construct($token, $baseUri, $headers = [])
     {
         $stack = HandlerStack::create();
         $stack->push(new BearerToken($token));
+        $headers['User-Agent'] = $this->getUserAgent();
 
         $this->httpClient = new GuzzleClient([
             'base_uri' => $baseUri,
@@ -61,6 +62,19 @@ protected function request($method, $path, array $options = [])
         return $this->decodeJson($response->getBody());
     }
 
+    abstract protected function getUserAgentAppName();
+
+    protected function getUserAgent()
+    {
+        $agent = $this->getUserAgentAppName() . ' GuzzleHttp/' . GuzzleClient::VERSION;
+        if (extension_loaded('curl') && function_exists('curl_version')) {
+            $agent .= ' curl/' . \curl_version()['version'];
+        }
+        $agent .= ' PHP/' . \PHP_VERSION;
+
+        return $agent;
+    }
+
     /**
      * @param  string $json JSON encoded object or array
      *

src/Delivery/Client.php

@@ -21,6 +21,8 @@
  */
 class Client extends BaseClient
 {
+    const VERSION = '0.6.1-beta';
+
     /**
      * @var ResourceBuilder
      */
@@ -51,13 +53,18 @@ public function __construct($token, $spaceId, $preview = false)
 
         $instanceCache = new InstanceCache;
 
-        parent::__construct($token, $baseUri . $spaceId . '/', $instanceCache);
+        parent::__construct($token, $baseUri . $spaceId . '/');
 
         $this->preview = $preview;
         $this->instanceCache = $instanceCache;
         $this->builder = new ResourceBuilder($this, $instanceCache, $spaceId);
     }
 
+    protected function getUserAgentAppName()
+    {
+        return 'ContentfulCDA/' . self::VERSION;
+    }
+
     /**
      * @param  string $id
      *