Use Username or SessionToken in our Integrated Custom App data of Already login user of Okta dev org Site on click of apps from My Apps Section of okta org dev site

Questions
1

Hi,

We have a scenario where we want if a user is already logged in on Okta org Site and after login if he clicked the Icon of our Integrated App in Okta org site.

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so after that instead of showing the login screen and sign-in widget again to user and auth them again we want to login that user into our web app and skip the step of login again into okta sign-in widget or our custom sign-in.

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For that we have just need some info or data of already logged in user of okta org site passed or redirect into our application which are:
Username.
Session Token of Okta org User.
Token ID (if have access).

Kindly assist me in this regard.
Thanks