添加用户displayname

Question

如何在FireStore中添加DisplayName？我读过firebase no displayname for user、firebase user photourl and displayname和this，但它们都不工作，因为它们都指的是Firebase而不是Firestore。

Answer 1

您可以创建在创建帐户时触发的云函数

functions.auth.user().onCreate(event => {
    const firebaseUser = event.data;

    return firebase.firestore().collection("users").doc(firebaseUser.uid).set({
       name: firebaseUser.displayName || "n/a"
    });
});

这将在一个名为users的集合中为用户创建一个文档，该文档由用户的UID标识。注意，displayName不一定是在auth user对象中设置的。因此，您可能希望设置一个默认占位符，以便稍后查询并要求用户提供其信息。

Answer 2

var config = {
  apiKey: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL",
  authDomain: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL",
  databaseURL: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL",
  projectId: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL",
  storageBucket: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL",
  messagingSenderId: "REPLACE_WITH_YOUR_FIREBASE_PROJECT_CREDENTIAL"
};
firebase.initializeApp(config);
// Initialize Cloud Firestore through Firebase
var firestore = firebase.firestore();
const settings = {/* your settings... */ timestampsInSnapshots: true};
firestore.settings(settings);

firebase.auth().onAuthStateChanged(function(user) {
  //check if user is signed in
  if (user) {
    //user is signed in
    //get user display
    if (user.displayName !== undefined) {
      var username = user.displayName;
      //add displayName to firestore
      firestore
      .collection("users")
      .doc(user.uid)
      .set({
        username: username
      }, {merge: true})
      .then(function() {
        alert('displayName added!');
      })
      .catch(function(e) {
        //there was an error writing to firestore
        //check console
        console.log(e);
      });
    } else {
      //user has not set displayName
      alert('no displayName');
    }
  }
});