Computes token expiry ISO string stored on the connection row.
Page connections use a far-future sentinel because Page access tokens do not expire.
Profile connections track long-lived user token expiry for refresh scheduling.
Parameters
targetType: "page"|"profile"
Page or personal profile target.
OptionaluserTokenExpiresIn: number
Long-lived user token lifetime in seconds from Meta.
Computes token expiry ISO string stored on the connection row. Page connections use a far-future sentinel because Page access tokens do not expire. Profile connections track long-lived user token expiry for refresh scheduling.