Get user from App Embed Link

If I use the App Embed Link feature, how does one get the current logged in user profile data after they are redirected on successful login? The only querystring returned is “iss” which is just a url encoded url of my okta app.
Thanks in advance

What type of application are you working on, is it custom? Typically user information would become available once the user has finished authorizing into the application in question.

For example, if this is an OpenID Connect application, after the user has completed authorization into the app, an ID token will be returned. As long as the application requests the profile scope, the ID Token and/or Userinfo endpoint will contain information about the logged in user.