Laravel Passport Password Grant Refresh Token

The oauth/token/refresh route is not for refreshing access tokens. It is used to refresh transient tokens, which are used when you consume your own API from your javascript.

To use your refresh_token to refresh your access token, you need to call the oauth/token route with the grant_type of refresh_token.

This is the example provided by the documentation:

$http = new GuzzleHttp\Client;

$response = $http->post('http://your-app.com/oauth/token', [
    'form_params' => [
        'grant_type' => 'refresh_token',
        'refresh_token' => 'the-refresh-token',
        'client_id' => 'client-id',
        'client_secret' => 'client-secret',
        'scope' => '',
    ],
]);

return json_decode((string) $response->getBody(), true);

One note about scopes, when you refresh the token, you can only obtain identical or narrower scopes than the original access token. If you attempt to get a scope that was not provided by the original access token, you will get an error.

I've done something like.

1. Created an endpoint for grant refresh token.

and in my controller,

public function userRefreshToken(Request $request)
{
    $client = DB::table('oauth_clients')
        ->where('password_client', true)
        ->first();

    $data = [
        'grant_type' => 'refresh_token',
        'refresh_token' => $request->refresh_token,
        'client_id' => $client->id,
        'client_secret' => $client->secret,
        'scope' => ''
    ];
    $request = Request::create('/oauth/token', 'POST', $data);
    $content = json_decode(app()->handle($request)->getContent());

    return response()->json([
        'error' => false,
        'data' => [
            'meta' => [
                'token' => $content->access_token,
                'refresh_token' => $content->refresh_token,
                'type' => 'Bearer'
            ]
        ]
    ], Response::HTTP_OK);
}