Multi Auth with Laravel 5.4 and Passport

Question

I am trying to setup multi auth with Laravel Passport, but it doesn\'t seem to support it. I am using the Password Grant to issue tokens which requires me to pass username/p

Answer 1

You have to modify the main library Files.

1) File: vendor\laravel\passport\src\Bridge\UserRepository.php

Find getUserEntityByUserCredentials and Copy the complete method and Paste this method below with name getEntityByUserCredentials. Donot modify the main function because it is used somewhere.

//Add the $provider variable at last or replace this line.
public function getEntityByUserCredentials($username, $password, $grantType, ClientEntityInterface $clientEntity, $provider)

Then, in the new duplicated function, find the below:

$provider = config('auth.guards.api.provider');

and Replace it with:

$provider = config('auth.guards.'.$provider.'.provider');

2) File: vendor\league\oauth2-server\src\Grant\PasswordGrant.php

In the function validateUser add the below code after line no. 88

$provider = $this->getRequestParameter('provider', $request);

if (is_null($provider)) {
     throw OAuthServerException::invalidRequest('provider');
}

After adding replace the following code with

$user = $this->userRepository->getEntityByUserCredentials(
        $username,
        $password,
        $this->getIdentifier(),
        $client,
        $provider
    );

Now try this using postman

Add the provider field in your input field like

provider = api_vendors
OR
provider = api_admins
OR
provider = api_users
And so on....

make sure you have added your provider and set the drivers in the config/auth.php

'guards' => [
 'api_admins' => [
    'driver' => 'passport',
    'provider' => 'admins',
  ],
  'api_vendors' => [
    'driver' => 'passport',
    'provider' => 'vendors',
  ],

I hope this helps.