i want to return the created session in this function

function createSession(sId, uId, duration){
    expires = new Date()
    expires.setDate(expires.getDate() + duration)
    prisma.session.create({
        data: {
            sessionId: sId,
            userId: uId,
            expirationDate: expires.toISOString()
        }

    }).then(session => {
        // session is what i want to return
        return session
    }).catch(err => {console.error(err)})
    return false
}

but when i call this function all it returns is 'false' but record in database gets created

console.log(createSession(crypto.randomUUID(), uId, 1)) // prints false