Cloud image removal issues for Firebase and @ google-cloud / storage

Question

I am trying to create a script in the cloud functions for Firebase that will respond to the db event and delete the image that has its own path in one of the parameters ("fullPath").

this is the code i use:

'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);
        });

    });

the error i get is:

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' }

I tried with credentials and without credentials in google-cloud / storage (thinking that they can be populated automatically, and im in firebase.functions - do I need them?). I tried adding a slash to the file path. I confirmed that the file does exist in the bucket (even file.exists () returns false). The credentials I provided are for iam i, created with administrator privileges for the storage service.

i .

?

Answer 1

ok, . :

• ".appspot.com". ​​ firebase , Google. , , firebase.
• process.env.GCLOUD_PROJECT, , firebase. , .appspot.com.
• GCS, firebase. , , .

Answer 2

, gs://

Eg. gs://my-project-id.appspot.com my-project-id.appspot.com

let bucket = gcs.bucket('my-project-id.appspot.com')

( ), , , Android, URL- , .. storage.getReferenceFromUrl('gs://my-proj...

.

, , projectId, gcs, appspot.com ( , ). . projectId:'my-project-id' .

, GCS node docs , JSON keyFilename . - SDK Firebase Admin, / .