为什么 AngularFire .set() 永远等待响应并且不继续

找到一个，https://github.com/angular/angularfire/issues/2585

基本上，他们告诉你需要订阅".authState"或".user from AngularFireAuth"，(注意，authState仅在登录/注销时触发)我会try 以下操作，但我没有办法进行测试，如果有任何问题，请抱歉:

此外，在下面添加了一些关于订阅功能的注释，您可以用我的方式将它们转换为promise.

import { first, tap } from "rxjs/operators";

processLoggedUser(): Promise<number> {
  return this.afAuth
    .getRedirectResult()
    .then(async (result) => {
      if (result.user) {
        const authUser = await this.afAuth.user
          .pipe(
            // Logs
            tap((user) => {
              console.log("User changed: ", user);
            }),
            // to unsibscribe after first event emitted
            first()
          )
          .toPromise(); // toPromise is tricky, a chance it will not fire for you, i have no way to test.

        const uid = result.user.uid;
        const credential = result.credential as firebase.default.auth.OAuthCredential;
        console.log("Twitter answer of AuthLogin: ", result);
        this.uid = uid;
        let code = 0; // 0 = default code -> error
        if (result.additionalUserInfo.isNewUser) {
          console.log("New user");
          this.user = {
            uid: this.uid,
            email: result.user.email,
            displayName: result.user.displayName,
            photoURL: result.user.photoURL.replace("_normal", ""),
            miniPhotoURL: result.user.photoURL,
            accessToken: credential.accessToken,
            secret: credential.secret,
            twitterId: result.additionalUserInfo.profile["id"],
            username: result.additionalUserInfo.username,
            bio: result.additionalUserInfo.profile["description"],
            verified: result.additionalUserInfo.profile["verified"],
            wallet: 0,
            staff: false,
            banned: false,
            hidden: false
          };
          console.log(this.user);
          await this.afs
            .collection("users")
            .doc(this.uid)
            .set(this.user || { nome: "oops" })
            .then((res) => {
              console.log("User created", res);
              code = 2; // Number code for new user
            })
            .catch((err) => {
              console.log("Error creating user", err);
              code = 0; // Number code for error
            });
          return 2;
        } else {
          await this.getUser(uid).then((res) =>
            // Note: subscribe is not a promise, not awaitable, codes will not be set
            res.subscribe((res) => {
              if (res == undefined) {
                this.signOut();
                code = 4; // Number code for user not found
              } else {
                this.user = res;
                console.log("Existing user", this.user);
                code = 1; // Number code for existing user
              }
            })
          );
        }
        return code;
      } else {
        return 3;
      }
    })
    .catch((error) => {
      console.warn(error);
      return 0; // Number code for error
    });
}