add to firebase database
db.collection("cities").add({
name: "Tokyo",
country: "Japan"
})
.then(function(docRef) {
console.log("Document written with ID: ", docRef.id);
})
.catch(function(error) {
console.error("Error adding document: ", error);
});javascript write to firebase
function writeUserData(userId, name, email, imageUrl) {
firebase.database().ref('users/' + userId).set({
username: name,
email: email,
profile_picture : imageUrl
});
}firebase functions add to database
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp(functions.config().firebase);
exports.onMsgAdded = functions.database.ref('/users/{uid}/messages/{to_uid}/{msg}').onCreate((snap, context) =>{
const data = snap.val();
const msgRoot = admin.database().ref('/users/' + context.params.to_uid + '/messages/' + context.params.uid);
return msgRoot.set(data);
});Copyright © 2021 Codeinu
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