Several bufixes in the action class. Readme examples improved (readability).

Author: georgique

Action.php

@@ -94,10 +94,11 @@ public function parseRequest($request) {
         }
 
         return \Yii::createObject([
-            'class' => JsonRpcRequest::className(),
+            'class' => JsonRpcRequest::class,
             'id' => $request->id,
             'route' => $route,
-            'params' => $params
+            'params' => $params,
+            'originalRequest' => \Yii::$app->request,
         ]);
     }
 
@@ -215,14 +216,14 @@ public function runWithParams($params)
             $requests = $this->parseJsonRpcBody(file_get_contents('php://input'));
         }
         catch (\Exception $e) {
-            $this->renderError($e, null);
+            return $this->renderError($e, null);
         }
 
         try {
             $requestObjects = $this->parseRequests($requests);
         }
         catch (\Exception $e) {
-            $this->renderError($e, null);
+            return $this->renderError($e, null);
         }
 
         $response = [];

README.md

@@ -65,16 +65,17 @@ class ExampleController extends \yii\web\Controller {
         return "Params received: \$foo = $foo.";
     }
 
-    // Passing params as Yii request body params must be handy too, when we need to do a bulk
+    // Passing params as Yii request body params must be handy too, when we need to do a massive
     // attribute assignment for example.
     public function actionTryWithBodyParams() {
-        $output = "Params received: \n";
+        $output = "Params received: ";
+        $output_chunks = array();
         foreach (\Yii::$app->request->getBodyParams() as $name => $value) {
-            $output .= "$name = $value\n";
+            $output_chunks[] = "$name = $value\n";
         }
-        return $output;
+        return $output . implode(', ', $output_chunks) . '.';
     }
-
+ 
 }
 ```
 
@@ -87,10 +88,8 @@ Now this is how calls and responses will look like:
 <- {"jsonrpc": "2.0", "result": "Params received: $foo = bar.", "id": 2}
 
 // Using alternative entry point:
--> {"jsonrpc": "2.0", "method": "api1.example.try-with-body-params", "params": {"foo": "bar"}, "id": 2}
-<- {"jsonrpc": "2.0", "result": "Params received: 
-    $foo = bar.
-    ", "id": 2}
+-> {"jsonrpc": "2.0", "method": "api1.example.try-with-body-params", "params": {"foo": "bar", "foo1": "bar1"}, "id": 2}
+<- {"jsonrpc": "2.0", "result": "Params received: $foo = bar, $foo1 = bar1.", "id": 2}
 
 -> {"jsonrpc": "2.0", "method": "api1.example.garbage", "id": 3}
 <- {"jsonrpc": "2.0", "error": {"code": -32601, "message": "Method not found."}, "id": 3}