Firebase cheatsheet

firebase-cheatsheet.js

// Firebase setup
const admin = require('firebase-admin');
admin.initializeApp(
    // Your settings
)
const db = admin.firestore()



// Add a document to a collection
db.collection("users").add({
    forename: "Gandalf",
    surname: "The Grey"
})



// Add a document with a specific id
const docRef = db.collection("cities").doc("MT");
docRef.set({
    name: "Minas Tirith",
})



// Updating a document
const docRef2 = db.collection("cities").doc("MT")
docRef2.update({
    oldName: "Minas Anor",
})



// Get a document ID
const docRef3 = db.collection("cities").doc("MT");
const docId = docRef3.id;



// Get a document's data
const docRef4 = db.collection("cities").doc("MT");
docRef4.get().then((snapshot) => {
    const data = snapshot.data();
})



// Delete a document
db.collection("cities").doc("MT").delete();