Get Access Token

This API request allows you to get 'access_token' (this is log in operation). Besides you will receive additional information and 'refresh_token' (should be used for updating 'access_token' when it become expired).

Response status codes:
200 - you are successfully authorized and you can got your token
400 - you are using invalid grant type
401 - you are trying authorize with invalid credentials
500 - if unhandled and unexpected exception happened