@magnetarjs/plugin-firestore/dist/actions/fetchCount.js

Magnetar plugin firestore

import { getFirestoreCollectionPath } from '@magnetarjs/utils-firestore';
import { getCountFromServer } from 'firebase/firestore';
import { getQueryInstance } from '../helpers/getFirestore.js';
export function fetchCountActionFactory(firestorePluginOptions) {
    return async function ({ collectionPath, pluginModuleConfig, }) {
        const { db, debug } = firestorePluginOptions;
        // in case of a doc module
        const _collectionPath = getFirestoreCollectionPath(collectionPath, pluginModuleConfig, firestorePluginOptions); // prettier-ignore
        const query = getQueryInstance(_collectionPath, pluginModuleConfig, db, debug);
        // see https://firebase.google.com/docs/firestore/query-data/aggregation-queries#use_the_count_aggregation
        const querySnapshot = await getCountFromServer(query);
        const count = querySnapshot.data().count;
        return count;
    };
}