Integration of Okta SSO in Rails App: Authentication Flow

User Initiation:

The authentication process begins when a user initiates an Okta sign-in on Fieldwatch.

Redirect to Okta:

Fieldwatch redirects the user to Okta, initiating the authentication flow. This redirection includes parameters essential for the authentication process.

Okta Authentication:

On Okta's platform, the user undergoes authentication, which may involve providing credentials like username/email and password or employing advanced methods such as multi-factor authentication (MFA).

Successful Verification:

Upon successful verification, Okta generates an ID Token and potentially an Access Token. The ID Token contains user information and details about the authentication event.

Redirect Back to Fieldwatch:

Okta redirects the user back to Fieldwatch along with the ID Token.

Fieldwatch Verification:

Upon receiving the user back from Okta, Fieldwatch performs various verification and authorization steps.

One critical step involves checking the local database to ascertain whether the authenticated user already exists locally. In pseudo-code:

* Assuming auth.info.email contains the user's email from the ID Token

user = User.find_by(email: auth.info.email)

if user.present?

 * User exists in the local database, proceed with authentication

 * ...

else

 * User does not exist locally, handle accordingly (e.g., prompt user to register)

 * ...

Testing in Sandbox Environment:

The desired functionality has been tested in the sandbox environment. To transition to the production environment, please provide the technical steps.