Mailchimp OAuth2 with express -- 2

I am looking for a freelancer who can help me with setting up OAuth2 authentication for my Mailchimp app using express. It is used to let other mailchimp accounts connect to the express app. Specifically, I need the following: - Setting up OAuth2 authentication only - Experience with Mailchimp API and express - Strong understanding of OAuth2 authentication - Ability to create secure and efficient authentication processes Features - Use Node version 18 - Should redirect to mailchimp and get code from query param - Should exchange the code for a token. - Should print the token I will provide you with the base express setup. (Most of the oauth2 code is completed but not fully functional) If you have experience with integrating OAuth2 authentication and Subscriber Management or Campaign Management, that would be a plus. However, this project only requires setting up the authentication process. Please start your response with your favourite fruit. Else you will not be consider. Thanks!