SSOfy essentially offers an OAuth2 compliant auth server with advanced capabilities. Depending on the programming language and framework in use, you may utilize an OAuth2 Client library to forward users to your SSOfied login page in order to authenticate and obtain token to be used in application's regular API calls.
SSOfy's Official SDKs for client applications support initiating Auth Code flow seamlessly. In addition to the official SDKs, users are always encouraged to use well-known, widely used standard OAuth2 client libraries from reputed vendors in order to get the most out of the OAuth2 client experience.
In the OAuth2 Client Libraries page, we've provided a list of the best libraries that are currently out there for each coding language and framework.