Laravel json response not showing custom object data

Question

I have the following class:

<?php
namespace App\Libraries;

use Illuminate\Contracts\Support\Arrayable;

class ErrorResponse implements Arrayable {

    private $error;

    function __construct($code, $message) {
        $this->error = array('code' => $code, 'message' => $message);
    }

    function toArray() {
        return $this->error;
    }

}

Then on the controller I have as a response:

$data['message'] = 'hello';
$data['error'] = new ErrorResponse($code, 'Something is bad');
return response()->json($data, $code);

On the response I get the following result:

{
  "error": {},
  "message": "hello"
}

But I was expecting

{
  "error": {
       "code": 422,
       "message": "Something is bad"
  },
  "message": "hello"
}

Any idea on how to make Laravel responds the contents of the nested object (ErrorResponse)?

You either need to implement the JsonSerializable interface or make $error public. — jfadich
– jfadich, Commented Jun 6, 2017 at 18:10

bishop · Accepted Answer · 2017-06-06 18:17:43Z

1

Since you give a pure array to json(), Laravel just passes it straight to json_encode. You will either need to:

give the json() call an Arrayable or JsonSerializable object to have Laravel recursively expand the value,
make the $error a public so json_decode can use it, or
do it yourself, given how simple your example is:

$data['error'] = (new ErrorResponse($code, 'Something is bad'))->toArray();

answered Jun 6, 2017 at 18:17

bishop

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1 Comment

JohnnyAce Over a year ago

Added the interface JsonSerializable and implemented as function jsonSerialize() { return $this->error; }

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