У меня есть функция Firebase, которая работала ранее, но при ее развертывании сегодня я получаю сообщение об ошибке, которое гласит:
This request would cause too many functions to be triggered.
И происходит сбой, и данные не удаляются.Есть идеи почему?
Вот мой код:
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
// Cut off time. Child nodes older than this will be deleted.
const CUT_OFF_TIME = 180 * 24 * 60 * 60 * 1000; // 180 Days in milliseconds.
/**
* This database triggered function will check for child nodes that are older than the
* cut-off time. Each child needs to have a `timestamp` attribute.
*/
exports.deleteOldItems = functions.database.ref('/messages/{pushId}')
.onWrite(event => {
const ref = event.data.ref.parent; // reference to the items
const now = Date.now();
const cutoff = now - CUT_OFF_TIME;
const oldItemsQuery = ref.orderByChild('time').endAt(cutoff);
return oldItemsQuery.once('value').then(snapshot => {
// create a map with all children that need to be removed
const updates = {};
snapshot.forEach(child => {
updates[child.key] = null;
});
// execute all updates in one go and return the result to end the function
return ref.update(updates);
});
});