🔧 success response code for PAR is 201 (fixes #6)

Author: codemasher

src/Core/PARTrait.php

@@ -41,8 +41,9 @@ public function getParRequestUri(array $body):UriInterface{
 		$status   = $response->getStatusCode();
 		$json     = MessageUtil::decodeJSON($response, true);
 
+		// the response should be a 201, see: https://github.com/chillerlan/php-oauth/issues/6
 		// something went horribly wrong
-		if($status !== 200){
+		if($status !== 201){
 
 			// @link https://datatracker.ietf.org/doc/html/rfc9126#section-2.3
 			if(isset($json['error'], $json['error_description'])){

tests/Providers/Unit/OAuth2ProviderUnitTestAbstract.php

@@ -93,7 +93,12 @@ public function testGetParAuthURL():void{
 		// @link https://datatracker.ietf.org/doc/html/rfc9126#name-successful-response
 		$json = '{"request_uri":"urn:ietf:params:oauth:request_uri:6esc_11ACC5bwc014ltc14eY22c","expires_in":60}';
 
-		$this->setMockResponse($this->streamFactory->createStream($json));
+		$response = $this->responseFactory
+			->createResponse(201)
+			->withBody($this->streamFactory->createStream($json))
+		;
+
+		$this->setMockResponse($response);
 
 		$uri    = $this->provider->getAuthorizationURL();
 		$params = QueryUtil::parse($uri->getQuery());