added support to parse json request to Request::getRestParams()

framework/CHANGELOG.md

@@ -86,6 +86,7 @@ Yii Framework 2 Change Log
 - Enh: Added `TableSchema::fullName` property (qiangxue)
 - Enh #1839: Added support for getting file extension and basename from uploaded file (anfrantic)
 - Enh: yii\codeception\TestCase now supports loading and using fixtures via Yii fixture framework (qiangxue)
+- Enh: Added support to parse json request data to Request::getRestParams() (cebe)
 - Chg #1519: `yii\web\User::loginRequired()` now returns the `Response` object instead of exiting the application (qiangxue)
 - Chg #1586: `QueryBuilder::buildLikeCondition()` will now escape special characters and use percentage characters by default (qiangxue)
 - Chg #1610: `Html::activeCheckboxList()` and `Html::activeRadioList()` will submit an empty string if no checkbox/radio is selected (qiangxue)

framework/web/Request.php

@@ -10,6 +10,7 @@ namespace yii\web;
 use Yii;
 use yii\base\InvalidConfigException;
 use yii\base\InvalidParamException;
+use yii\helpers\Json;
 use yii\helpers\Security;
 use yii\helpers\StringHelper;
 
@@ -256,6 +257,8 @@ class Request extends \yii\base\Request
 		if ($this->_restParams === null) {
 			if (isset($_POST[$this->restVar])) {
 				$this->_restParams = $_POST;
+			} elseif(strncmp($this->getContentType(), 'application/json', 16) === 0) {
+				$this->_restParams = Json::decode($this->getRawBody(), true);
 			} else {
 				$this->_restParams = [];
 				mb_parse_str($this->getRawBody(), $this->_restParams);