About authorization of Google APIs

Hello.

I have a question about authentication when integrating yeeflow and google API.

I am currently trying to reflect data in a yeeflow application to the google side in a workflow. For example, when there is data like calendar appointments, when they are added, updated or deleted, it is reflected on the google calendar side.

If a user called A is logged into yeeflow using a google account and wants to add an appointment from the yeeflow app to A’s Google calendar, how should the user authenticate with the https request in the workflow?

My thinking is that the reflection can be done using an access token to A’s google account, but can this be done within the workflow?