Is Firestore Local persistence available for Windows/-CodePudding

I am running the following code:

const { initializeApp } = require('firebase-admin/app');
const { getFirestore  } = require('firebase-admin/firestore');
const {firestore} = require("firebase-admin");
const QuerySnapshot = firestore.QuerySnapshot;

initializeApp()
const db = getFirestore();

const initializeListener = (collectionName) => {
console.log('called function');
const query = db.collection(collectionName);

query.onSnapshot((querySnapshot) => {
    querySnapshot.docs().
    console.log('snapshot received');
    querySnapshot.docChanges().forEach((change) => {
        console.log('doc change found');
        if (change.type === "added") {
            console.log("New "   collectionName, change.doc.data());
        }
    });
}, (erry) => {
    console.log(`Encountered error: ${err}`);
});
}

initializeListener('my_collection');

If running whilst offline I don't see the 'snapshot received' message until I go online. If offline persistence should be available here, how do I access it?

CodePudding user response：

You are using the Firebase Admin SDK (a wrapper around the Google Cloud backend SDK), which does not have any sort of persistence on any platform. Offline persistence is only available for the web and client SDKs provided by Firebase. As you can see from the linked documentation:

Note: Offline persistence is supported only in Android, Apple, and web apps.