Firebase google cloud functions - Download File - Not Found - firebase

Question

I'm trying to do the thumb generator example (generate image thumbnail when one is uploaded). This example was adapter from a previous version of the API.
const functions = require('firebase-functions');
const { Storage } = require('#google-cloud/storage');
const os = require('os');
const path = require('path');
const sharp = require('sharp');
const fs = require('fs-extra');
exports.generateThumbs = functions.storage
.object()
.onFinalize(async (object) => {
const storage = new Storage();
const bucket = await storage.bucket(object.name);
const filePath = object.name;
const fileName = filePath.split('/').pop();
const bucketDir = path.dirname(filePath);
const workingDir = path.join(os.tmpdir(), 'thumbs');
const tmpFilePath = path.join(workingDir, 'source.png');
if (fileName.includes('thumb#') || !object.contentType.includes('image')) {
console.log('exiting function');
return false;
}
// 1. Ensure thumbnail dir exists
await fs.ensureDir(workingDir);
// 2. Download Source File
const file = await bucket.file(filePath);
await file.download({
destination: tmpFilePath
});
// 3. Resize the images and define an array of upload promises
const sizes = [64, 128, 256];
const uploadPromises = sizes.map(async size => {
const thumbName = `thumb#${size}_${fileName}`;
const thumbPath = path.join(workingDir, thumbName);
// Resize source image
await sharp(tmpFilePath)
.resize(size, size)
.toFile(thumbPath);
// Upload to GCS
return bucket.upload(thumbPath, {
destination: path.join(bucketDir, thumbName)
});
});
// 4. Run the upload operations
await Promise.all(uploadPromises);
// 5. Cleanup remove the tmp/thumbs from the filesystem
return fs.remove(workingDir);
});
But I get the following error:
Error: Not Found
at new ApiError (/srv/node_modules/#google-cloud/common/build/src/util.js:58:28)
at Util.parseHttpRespMessage (/srv/node_modules/#google-cloud/common/build/src/util.js:159:41)
at Util.handleResp (/srv/node_modules/#google-cloud/common/build/src/util.js:136:74)
at Duplexify.requestStream.on.on.res (/srv/node_modules/#google-cloud/storage/build/src/file.js:392:31)
at emitOne (events.js:116:13)
at Duplexify.emit (events.js:211:7)
at emitOne (events.js:116:13)
at DestroyableTransform.emit (events.js:211:7)
at onResponse (/srv/node_modules/retry-request/index.js:194:19)
at Request.<anonymous> (/srv/node_modules/retry-request/index.js:149:11)
at bucket.file(...).download()
API 2.X.X introduced some changes and I can't seem to make this work. Can anyone give me a hand?
Thank you.

Answer 1

Got it working with the following code:
const functions = require('firebase-functions');
const { Storage } = require('#google-cloud/storage');
const os = require('os');
const path = require('path');
const sharp = require('sharp');
const fs = require('fs-extra');
exports.generateThumbs = functions.storage
.object()
.onFinalize(async (object) => {
const storage = new Storage();
const bucket = storage.bucket(object.bucket);
const filePath = object.name;
const fileName = filePath.split('/').pop();
const bucketDir = path.dirname(filePath);
const workingDir = path.join(os.tmpdir(), 'thumbs');
const tmpFilePath = path.join(workingDir, 'source.png');
if (fileName.includes('thumb#') || !object.contentType.includes('image')) {
console.log('exiting function');
return false;
}
// 1. Ensure thumbnail dir exists
await fs.ensureDir(workingDir);
// 2. Download Source File
await bucket.file(filePath).download({
destination: tmpFilePath
});
// 3. Resize the images and define an array of upload promises
const sizes = [64, 128, 256];
const uploadPromises = sizes.map(async size => {
const thumbName = `thumb#${size}_${fileName}`;
const thumbPath = path.join(workingDir, thumbName);
// Resize source image
await sharp(tmpFilePath)
.resize(size, size)
.toFile(thumbPath);
// Upload to GCS
return bucket.upload(thumbPath, {
destination: path.join(bucketDir, thumbName)
});
});
// 4. Run the upload operations
await Promise.all(uploadPromises);
// 5. Cleanup remove the tmp/thumbs from the filesystem
return fs.remove(workingDir);
});