Connecting API URL and building apk file

Connected the mobile application (ios – android) with the web application.
https://docs.saasmonks.in/eventright-ticket-sales-and-event-management-syste/mobile-configuration-and-build-generation/connect-application-to-server-or-admin

Web:
https://codecanyon.net/item/eventright-ticket-sales-and-event-booking-management-system/30781241

Mobile:

https://codecanyon.net/item/user-app-ticket-sales-and-event-booking-management-system-event-right/32113021

https://codecanyon.net/item/organizer-app-ticket-sales-and-event-booking-management-system/31300471

https://codecanyon.net/item/user-app-ticket-sales-and-event-booking-management-system-event-right/32113021

Scanner, user and organizer app:
Change the app icon
Change the app name
Change the package icon
Change the color
connecting API URL and building apk file
Web eat already installed (https://eticketgn.com/)
I already have the source code