Yii::$app->request->post() not always getting data

Yii 2.0 REST APIs
1

I’m developing a REST controller and a web backend with the basic template.

I’m trying to post some values via (Firefox, RESTED Client), but I’m having a very weird performances. Sometimes, the post variables are catched, but in some others, they simply are not being catched, more if I check the $_POST variable and it is empty too.

It isn’t related, i guess, with the urlManager because as I said, the same URLs sometimes work, sometimes don’t work.

What do I do?:

On each function I need to check the access, I call inside $this->checkAccess('the-url'); and inside the checkAccess method:

    public function checkAccess($action, $model = null, $params = array())
    {
        if (Yii::$app->request->isPost) {
            $body = Yii::$app->request->post();
            Yii::debug(var_export($body, true)); // empty sometimes, the data some others.
            if ($action !== 'login' || $action !== "index") {
                if (!isset($body['auth_key'])) {
                    throw new ForbiddenHttpException(Yii::t('yii', 'You are not allowed to perform this action.'));
                } elseif (($model = User::findIdentityByAccessToken($body['auth_key'])) === null) {
                    throw new ForbiddenHttpException(Yii::t('yii', 'You are not allowed to perform this action.'));
                }
            }
        } else {
            if ($action !== 'login' || $action !== "index") {
                $body = Yii::$app->request->get();
                if (!Yii::$app->request->get("auth_key")) {
                    throw new ForbiddenHttpException(Yii::t('yii', 'You are not allowed to perform this action.'));
                } elseif (($model = User::findIdentityByAccessToken(Yii::$app->request->get("auth_key"))) === null) {
                    throw new ForbiddenHttpException(Yii::t('yii', 'You are not allowed to perform this action.'));
                }
            }
        }
    }

If I use rawBody, the data is printed as string, just like the URL query string.

I have to try a lot of times before the post parameters are finally catched.

2

Can you show us how you perform the POST request on the client side ?

3

I only can to show a part:

var request = http.MultipartRequest('POST', Uri.parse(url));
request.fields.addAll(data); // data: Map<String, String>
request.fields.add(await http.MultipartFile.fromPath("picture", fileName);

http.StreamedResponse response = await request.send();
final res = await http.Response.fromStream(response);

BTW, with Postman, now I’m getting the values, but again, from the mobile app I’m unable to get them.

4

If it works with postman, make sure to compare the exact request headers sent from Postman, and the one from your flutter request.

For example, make sure your Content-type request header is set to application/json, so that Yii knows to decode it automatically when using Yii::$app->request->post() :
yii2/Request.php at 7ebaaf021680bc40606931a808541cf298f43938 · yiisoft/yii2 · GitHub

5

If it works with postman, make sure to compare the exact request headers sent from Postman, and the one from your flutter request.

For example, make sure your Content-type request header is set to application/json, so that Yii knows to decode it automatically when using Yii::$app->request->post() :
https://github.com/yiisoft/yii2/blob/7ebaaf021680bc40606931a808541cf298f43938/framework/web/Request.php#L585