Yii2 api how to be?

Question

Yii

if you contact by api then

Invalid Parameter - yii\base\InvalidParamException
Response content must not be an array.

and if

'response' => [
        'format' => yii\web\Response::FORMAT_JSON,
        'charset' => 'UTF-8',
    ],

then in index
{"name":"Not Found","message":"Page not found.","code":0,"status":404,"type":"yii\web\NotFoundHttpException"}
rep https ://github.com/des1roer/yii2test
i.e. on the path mysite/api/user I want to see json
but the mysite site itself and other mysite/about pages should work as usual

Answer 1

Nothing is clear from your question. Try to be more specific.

Answer 2

You went somewhere, got an error that the server response cannot be an array, and this is true. Can not. Then you configured the response as json and your array became a Json string. Everything is logical. What is the problem? Can you describe what you expect to get?