Question

我正在尝试将服务帐户密钥包含到我的存储功能中，以便能够通过遵循此处的过时示例来获取长期存在的签名URL

https://github.com/firebase/functions-samples/blob/b404482342906ee1b46dddb4c75667685ab098a1/generate-thumbnail/functions/index.js#L21

我已从IAM下载了JSON格式的密钥。我试图将其保存在我的功能旁边

-functions / storage / resizeProfileImg.js

-functions / storage / service-account-credentials.json

-functions / index.js

-functions / admin.js

其中resizeProfileImg.js是我的函数，并且这样调用

const { Storage } = require('@google-cloud/storage');
const storage = new Storage({ projectId: projectId ,keyFilename: './service-account-credentials.json'})

但是在部署后，当函数被触发时，我得到一个错误

错误：ENOENT：没有此类文件或目录，请打开“ /srv/service-account-credentials.json”

我甚至试图像这样将其添加为常量

const serviceAccountCredentials = require('./accountKey/service-account-credentials.json')

const { Storage } = require('@google-cloud/storage');
const storage = new Storage({ projectId: projectId ,keyFilename: serviceAccountCredentials})

但是我得到一个错误

TypeError：路径必须是字符串。已收到{类型：“ service_account”，...

这是我完整的功能

const {
db, storageRef
} = require('../../admin')


const projectId = "myProjectId"
const { Storage } = require('@google-cloud/storage');
const storage = new Storage({ projectId: projectId ,keyFilename: './service-account-credentials.json'})
const os = require('os');
const fs = require('fs');
const path = require('path');

const spawn = require('child-process-promise').spawn

const JPEG_EXTENSION = '.jpg'

exports.handler = ((object) => {
const bucket = object.bucket;
const contentType = object.contentType;
const filePath = object.name
const JPEGFilePath = path.normalize(path.format({ dir: path.dirname(filePath), name: 'profileImg', ext: JPEG_EXTENSION }))
const destBucket = storage.bucket(bucket)
const tempFilePath = path.join(os.tmpdir(), path.basename(filePath))
const tempLocalJPEGFile = path.join(os.tmpdir(), path.basename(JPEGFilePath))
const metadata = {
    contentType: contentType
}
const uid = filePath.split("/").slice(1, 2).join("")
const d = new Date()
const date = new Date(d.setFullYear(d.getFullYear() + 200)).toString()

if (!object.contentType.startsWith('image/')) {
    return destBucket.file(filePath).delete().then(() => {
        console.log('File is not an image ', filePath, ' DELETED')
        return null
    });
}

if (object.metadata.modified) {
    console.log('Image processed')
    return null
}

return destBucket.file(filePath).download({
    destination: tempFilePath
})
    .then(() => {
        console.log('The file has been downloaded to', tempFilePath)
        return spawn('convert', [tempFilePath, '-resize', '100x100', tempLocalJPEGFile])
    }).then(() => {
        console.log('JPEG image created at', tempLocalJPEGFile)
        metadata.modified = true
        return destBucket.upload(tempLocalJPEGFile,
            {
                destination: JPEGFilePath,
                metadata: { metadata: metadata }
            })
    }).then(() => {
        console.log('JPEG image uploaded to Storage at', JPEGFilePath)
        return destBucket.file(filePath).delete()
    }).then(() => {
        console.log('Original file deleted', filePath)
        const logo = storageRef.file(JPEGFilePath)
        return logo.getSignedUrl({ action: 'read', expires: date })
    }).then((url) => {
        const newRef = db.collection("user").doc(uid)
        return newRef.set({
            profile: { profileImg: url[0] }
        }, {
                merge: true
            })
    }).then(() => {
        fs.unlinkSync(tempFilePath);
        fs.unlinkSync(tempLocalJPEGFile)
        console.log(uid, 'user database updated ')
        return null
    })
})

任何想法如何正确执行此操作

Answer 1

在Cloud Functions中，当前目录.不在源文件所在的位置。这是功能文件夹的部署位置。由于您的凭据文件位于名为“存储”的子目录中，因此需要在路径中使用该文件。

const serviceAccountCredentials = require('./storage/service-account-credentials.json')

如何在功能中包括存储服务帐户密钥

1 个答案: