Implementing Customer Account Login in a Mobile App

[beeeyan]

I am inquiring about the possibility of implementing a login feature for customer accounts in a mobile app. Specifically, I am not looking to open a web page on a mobile device, but rather, I want to integrate customer account authentication directly into the mobile application.

The idea is to enable users to log in, obtain an access token, and then use this token to fetch customer-specific information such as purchase history and personal details through an API, akin to the OAuth mechanism.

While an example using Flutter would be ideal for my case, I am also open to learning about implementations in Kotlin or Swift.

I would greatly appreciate any guidance or resources you could provide on this topic.

Thank you for your assistance.