invoiceninja/config/services.php

<?php

return [

	/*
	|--------------------------------------------------------------------------
	| Third Party Services
	|--------------------------------------------------------------------------
	|
	| This file is for storing the credentials for third party services such
	| as Stripe, Mailgun, Mandrill, and others. This file provides a sane
	| default location for this type of information, allowing packages
	| to have a conventional place to find your various credentials.
	|
	*/

    'postmark' => env('POSTMARK_API_TOKEN', ''),

	'mailgun' => [
		'domain' => env('MAILGUN_DOMAIN',''),
		'secret' => env('MAILGUN_SECRET',''),
	],

	'mandrill' => [
		'secret' => '',
	],

	'sparkpost' => [
		'secret' => env('SPARKPOST_API_KEY'),
	],

	'ses' => [
		'key' => '',
		'secret' => '',
		'region' => 'us-east-1',
	],

	'stripe' => [
		'model'  => 'User',
		'secret' => '',
	],

    'github' => [
        'client_id' => env('GITHUB_CLIENT_ID'),
        'client_secret' => env('GITHUB_CLIENT_SECRET'),
        'redirect' => env('GITHUB_OAUTH_REDIRECT'),
    ],

    'google' => [
        'client_id' => env('GOOGLE_CLIENT_ID'),
        'client_secret' => env('GOOGLE_CLIENT_SECRET'),
        'redirect' => env('GOOGLE_OAUTH_REDIRECT'),
    ],

    'facebook' => [
        'client_id' => env('FACEBOOK_CLIENT_ID'),
        'client_secret' => env('FACEBOOK_CLIENT_SECRET'),
        'redirect' => env('FACEBOOK_OAUTH_REDIRECT'),
    ],

    'linkedin' => [
        'client_id' => env('LINKEDIN_CLIENT_ID'),
        'client_secret' => env('LINKEDIN_CLIENT_SECRET'),
        'redirect' => env('LINKEDIN_OAUTH_REDIRECT'),
    ],

];