LẬP TRÌNH WEB HTML - CSS - JAVA SCRIPT

BÀI 17: FIRESTORE DATABASE TRONG WEB JS

<script src="https://www.gstatic.com/firebasejs/8.2.1/firebase-app.js"></script>

<script src="https://www.gstatic.com/firebasejs/8.2.1/firebase-auth.js"></script>

<script src="https://www.gstatic.com/firebasejs/8.2.1/firebase-firestore.js"></script>

const firebaseConfig = {

apiKey: "key",

authDomain: "web.firebaseapp.com",

databaseURL: "https://web-default-rtdb.firebaseio.com",

projectId: "web",

storageBucket: "web.appspot.com",

messagingSenderId: "id",

appId: "appid",

measurementId: "measurementid"

};

firebase.initializeApp(firebaseConfig);

let auth = firebase.auth()

let db = firebase.firestore();

function GetAllDataOnce() {

db.collection("MachineDelivired").get().then((querySnapshot) => {

var machine = [];

querySnapshot.forEach(doc => {

machine.push(doc.data());

});

});

}

function GetFilterData() {

store

.collection("yourCollection")

.where("yourIndex", "==", Bill)

.get()

.then((querySnapshot) => {

querySnapshot.forEach((doc) => {

doc.ref.update({

image1: null,

image2: null,

image3: null,

image4: null,

image5: null,

});

});

})

.catch((e) => {

console.log(e);

});

}

store.collection('Users').add({

email: localStorage.getItem("email"),

account: localStorage.getItem("account"),

location: localStorage.getItem("address"),

avatar: "https://www.pngitem.com.png",

time_registration: localStorage.getItem("registration"),

last_signin: localStorage.getItem("registration")

})

store.collection("Users").doc(user.uid).set({

email: localStorage.getItem("email"),

account: localStorage.getItem("account"),

location: localStorage.getItem("address"),

avatar: "https://www.pngitem.com.png",

time_registration: localStorage.getItem("registration"),

last_signin: localStorage.getItem("registration")

})

firebase.firestore()

.collection("posts")

.orderBy("docName", "desc") // "desc": đảo ngược dữ liệu trong CSDL, bỏ nó đi dữ liệu trả về mặc định

.limit(10) // Chỉ lấy 10 cái từ dưới lên