javascript - Cloud Functions for Firebase: Increment Counter

Question

Is it acceptable to increment a counter with a realtime database trigger using transaction?

exports.incPostCount = functions.database.ref('/threadsMeta/{threadId}/posts')
.onWrite(event => {
    admin.database().ref('/analytics/postCount')
    .transaction(count => {
        if (count === null) {
            return count = 1
        } else {
            return count + 1
        }
    })
});

Answer 1

Waitting for answers