API module for oauth2 tokens. Works to get oauth tokens for system accounts. This project includes a base module + implementations for Box and Slack.

Box required ENV variables:

    BOXCOM_OAUTH_CLIENT_ID
    BOXCOM_OAUTH_CLIENT_SECRET
    BOXCOM_OAUTH_REDIRECT_URI

Slack required ENV variables:

    SLACK_OAUTH_CLIENT_ID
    SLACK_OAUTH_CLIENT_SECRET
    SLACK_OAUTH_REDIRECT_URI
https://www.drupal.org/project/oauth2_token_manager