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@firebase/firestore-compat

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@firebase/firestore-compat

The Cloud Firestore component of the Firebase JS SDK.

  • 0.3.39
  • latest
  • Source
  • npm
  • Socket score

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Weekly downloads
1.6M
decreased by-4.36%
Maintainers
4
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Created

What is @firebase/firestore-compat?

The @firebase/firestore-compat package is designed to provide compatibility with older versions of Firebase Firestore for projects that use the Firebase JavaScript SDK. It allows developers to use the new Firestore SDK in a way that is compatible with the older syntax and methods, facilitating easier upgrades and maintenance of legacy code.

What are @firebase/firestore-compat's main functionalities?

Data Retrieval

This feature allows you to retrieve data from a Firestore database. The code sample demonstrates how to fetch a document from the 'users' collection using a specific user ID.

const db = firebase.firestore();
const docRef = db.collection('users').doc('user_id');
docRef.get().then((doc) => {
  if (doc.exists) {
    console.log('Document data:', doc.data());
  } else {
    console.log('No such document!');
  }
}).catch((error) => {
  console.log('Error getting document:', error);
});

Data Modification

This feature covers adding or updating data in Firestore. The code sample shows how to set data for a document in the 'users' collection, effectively creating or updating a document.

const db = firebase.firestore();
db.collection('users').doc('user_id').set({
  firstName: 'John',
  lastName: 'Doe'
}).then(() => {
  console.log('Document successfully written!');
}).catch((error) => {
  console.error('Error writing document: ', error);
});

Real-time Updates

This feature enables listening to real-time updates of a document in Firestore. The code sample illustrates how to subscribe to changes in a document, receiving updates automatically whenever the document data changes.

const db = firebase.firestore();
const docRef = db.collection('users').doc('user_id');
docRef.onSnapshot((doc) => {
  if (doc.exists) {
    console.log('Current data: ', doc.data());
  } else {
    console.log('No such document!');
  }
});

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Package last updated on 21 Oct 2024

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