无法使用 Cloud Function 删除 Firebase 存储映像

Question

已将此问题的存储路径从“yourmaps”更改为“users” 正在尝试从 Firebase 存储中删除图像。 我读过类似的堆栈溢出问题，并尝试了几天不费力地解决这个问题。

const functions = require('firebase-functions');
const admin = require('firebase-admin');
const {Storage} = require('@google-cloud/storage');
admin.initializeApp();

当用户帐户被删除时，用户uuid 被传递到云函数。我正在尝试删除在 firebase 存储中具有相同 uuid 的用户图像。

exports.storageImageDelete = functions.firestore
    .document('user/{userId}')
    .onDelete(async (snapshot, context) => {

      const userId = context.params.userId
      const path = `users/${userId}.jpg`;
      const bucketName = 'xxxxxxx.appspot.com/'
      const storage = new Storage();

      return storage.bucket(bucketName).file(path).delete()
        .then(function () {
          console.log(`File deleted successfully in path: ${path}`)
        })
        .catch(function (error) {
          console.error(storage.bucket(bucketName).file(path).delete())
          console.info(storage.bucket(bucketName).file(path).delete())
          console.log(`File NOT deleted: ${path}`)
        })
      });

Firebase 存储日志中的错误消息。路径正确但是没有对象...

Error: No such object: xxxxxx.appspot.com/users/XXXXXXXXXX-XXXX-XXXX-XXXXXXXXXXX.jpg

在 Firebase 存储的“监控规则”中，我可以看到我的尝试是被允许的。任何帮助，将不胜感激。我错过了什么？

Answer 1

因为它是您的默认存储桶，下面应该可以解决问题（未经测试）：

带有 then 的版本（未使用 async/await）

const functions = require('firebase-functions');

const admin = require('firebase-admin');
admin.initializeApp();

exports.storageImageDelete = functions.firestore
    .document('user/{userId}')
    .onDelete((snapshot, context) => {

      const userId = context.params.userId
      const path = `users/${userId}.jpg`;

      const bucket = admin.storage().bucket();
      
      return bucket.file(path).delete()
        .then(() => {
          console.log(`File deleted successfully in path: ${path}`)
          return null;
        })
        .catch(error => {
          console.log(`File NOT deleted: ${path}`);
          return null;
        })
      });

版本使用 async/await

exports.storageImageDelete = functions.firestore
.document('user/{userId}')
.onDelete(async (snapshot, context) => {
    
    try {
        const userId = context.params.userId
        const path = `users/${userId}.jpg`;
      
        const bucket = admin.storage().bucket();
        
        await bucket.file(path).delete();
        
        console.log(`File deleted successfully in path: ${path}`)
        return null;
        
    } catch (error) {
        console.log(`File NOT deleted: ${path}`);
        console.log(error);
        return null;
    }
    
  });

也就是说，不需要像你那样声明bucket，直接用admin.storage().bucket()声明就可以了。

Answer 2

我终于解决了我的问题。我需要在初始化应用程序时声明 storageBucket。现在我可以正确找到我的水桶了。

admin.initializeApp({
  databaseURL: "https://xxxxxxxx.firebaseio.com",
  storageBucket: "xxxxxxxx.appspot.com"
});