uploadTask.snapshot.downloadURL 没有给出文件的下载 URL 作为响应 [重复]答案

【问题标题】：uploadTask.snapshot.downloadURL not giving the download URL of the file in response [duplicate]uploadTask.snapshot.downloadURL 没有给出文件的下载 URL 作为响应 [重复]
【发布时间】：2019-02-26 11:22:58
【问题描述】：

我目前正在研究一个角度课程，我在将档案上传到 firebase 时遇到问题，我可以上传文件，但我没有得到下载 URL 作为响应：

import { Injectable } from '@angular/core';
import { AngularFireDatabase, AngularFireList,
        AngularFireObject } from 'angularfire2/database';
import * as firebase from 'firebase';
import { Archivo } from '../uploads/file.modal';
@Injectable({
  providedIn: 'root'
})
export class LoadfileService {

  private basePath: string = '/uploads';
  uploads: AngularFireList<Archivo[]>;

  constructor( public angularFireDatabase: AngularFireDatabase) { }

  pushUpload(upload: Archivo) {
    const storageRef = firebase.storage().ref();
    const uploadTask = storageRef.child(`${this.basePath}/${upload.file.name}`).put(upload.file);

    uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED,
      (snapshot) =>{
        upload.progress = (uploadTask.snapshot.bytesTransferred / uploadTask.snapshot.totalBytes * 100);
      },
      (error) => {
        console.log(error);
      },
      () => {
    // tslint:disable-next-line: deprecation
            upload.url = uploadTask.snapshot.downloadURL;
            upload.name = upload.file.name;
            this.saveFileData(upload);
          });
      }

      private saveFileData(upload: Archivo) {
        this.angularFireDatabase.list(`${this.basePath}/`).push(upload);
      }
 }

这是我在上传服务中使用的代码，它告诉我 donwloadURL 已被弃用。

我正在寻找解决方案 atm，但找不到任何有用的东西。

【问题讨论】：

标签： javascript firebase firebase-storage angular7

【解决方案1】：

google了一会儿问题解决了：

      pushUpload(upload: Archivo) {
    const storageRef = firebase.storage().ref();
    const uploadTask = storageRef.child(`${this.basePath}/${upload.file.name}`).put(upload.file);

    storageRef.child(`${this.basePath}/${upload.file.name}`).getDownloadURL().then(ref => {
      this.urlDownload = ref;
    });

    uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED,
      (snapshot) =>{
        upload.progress = (uploadTask.snapshot.bytesTransferred / uploadTask.snapshot.totalBytes * 100);
      },
      (error) => {
        console.log(error);
      },
      () => {
        upload.url = this.urlDownload;
        upload.name = upload.file.name;
        this.saveFileData(upload);
      });
  }

【讨论】：