Lumen with OAuth 2

Reference http://bshaffer.github.io/oauth2-server-php-docs/cookbook/laravel/

Usage

POST /authorize
grant_type: password
client_id: testclient
client_secret: testsecret
username: testuser
password: testpassword

GET /resources
access_token: <access_token>

Rename .env.dist to .env and set your database credentials.