6
我想創建一個腳本在雲功能的Firebase，將對db事件作出反應，並刪除一個圖像，其路徑之一params（「fullPath」）。使用雲功能刪除圖像的Firebase和@谷歌雲/存儲
這是我使用的代碼：
'use strict';
const functions = require('firebase-functions');
const request = require('request-promise');
const admin = require('firebase-admin');
const gcs = require('@google-cloud/storage')({
projectId: 'XXXXXXX',
credentials: {
// removed actual credentials from here
}});
admin.initializeApp(functions.config().firebase);
// Deletes the user data in the Realtime Datastore when the accounts are deleted.
exports.removeImageOnNodeRemoval = functions.database
.ref("images/{imageId}")
.onWrite(function (event) {
// exit if we are creating a new record (when no previous data exists)
if (!event.data.previous.exists()) {
console.log("a new image added");
return;
}
// exit if we are just trying to update the image
if (event.data.exists()) {
console.log("image is been modified");
return;
}
let previousData = event.data.previous.val();
if(!previousData || !previousData.fullPath){
console.log("no data in the previous");
return;
}
let bucketName = 'XXXXXXX';
console.log("default bucketName", gcs.bucket(bucketName));
let file = gcs.bucket(bucketName).file(previousData.fullPath);
console.log('the file /'+previousData.fullPath, file);
file.exists().then(function(data) {
let exists = data[0];
console.info("file exists", exists);
});
file.delete().then(function() {
// File deleted successfully
console.log("image removed from project", previousData.fullPath);
}).catch(function(error) {
// Uh-oh, an error occurred!
console.error("failed removing image from project", error, previousData);
});
});
錯誤我越來越：
failed removing image from project { ApiError: Not Found
at Object.parseHttpRespBody (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/src/util.js:192:30)
at Object.handleResp (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/src/util.js:132:18)
at /user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/src/util.js:465:12
at Request.onResponse [as _callback] (/user_code/node_modules/@google-cloud/storage/node_modules/retry-request/index.js:120:7)
at Request.self.callback (/user_code/node_modules/@google-cloud/storage/node_modules/request/request.js:188:22)
at emitTwo (events.js:106:13)
at Request.emit (events.js:191:7)
at Request.<anonymous> (/user_code/node_modules/@google-cloud/storage/node_modules/request/request.js:1171:10)
at emitOne (events.js:96:13)
at Request.emit (events.js:188:7)
at IncomingMessage.<anonymous> (/user_code/node_modules/@google-cloud/storage/node_modules/request/request.js:1091:12)
at IncomingMessage.g (events.js:291:16)
at emitNone (events.js:91:20)
at IncomingMessage.emit (events.js:185:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickDomainCallback (internal/process/next_tick.js:122:9)
code: 404,
errors: [ { domain: 'global', reason: 'notFound', message: 'Not Found' } ],
response: undefined,
message: 'Not Found' } { contentType: 'image/png',
fullPath: 'images/1491162408464hznsjdt6oaqtqmukrzfr.png',
name: '1491162408464hznsjdt6oaqtqmukrzfr.png',
size: '44.0 KB',
timeCreated: '2017-04-02T19:46:48.855Z',
updated: '2017-04-02T19:46:48.855Z' }
我曾嘗試與不憑據到谷歌雲/存儲（他們的思維可能會在firebase.functions中的im時自動填充 - 我需要它們嗎？）。我曾嘗試向該文件的路徑添加斜槓。我已驗證該文件實際上存在於存儲桶中（甚至tho file.exists（）返回false）。我提供的憑證是爲iam創建的，具有存儲服務的管理權限。
我還啓用了免費計劃上的結算帳戶。
有什麼想法？