Question

我想通过可调用的https云功能将图像上传到Firebase存储中，但是我不知道该怎么做。

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

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

admin.initializeApp();

const storageBucket = admin.storage().bucket('gs://xxxxx.appspot.com');

exports.test_upload = functions.https.onRequest(async (request, response) => {

    var base64Img = "data:image/jpeg;base64,/9j/4AAQSkZJRg...AoNDQoIC";

    let filename = new Date().getTime() + '.jpg';

    await storageRef.child('/destination/'+filename).putString(base64Img, 'data_url').then(function(snapshot) {

        snapshot.ref.getDownloadURL().then(async (url) => { 
            
            console.log(url);

        });

    });


    response.status(200).send("Done!");

});

您能帮助我了解如何做到吗？

非常感谢

更新：2020/07/22

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

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

admin.initializeApp();

const storageBucket = admin.storage().bucket('perfume-group.appspot');

const {Storage} = require('@google-cloud/storage');

const storage = new Storage({keyFilename: 'perfume-group-key.json'});

exports.test_upload = functions.https.onRequest(async (request, response) => {

    /// CAS 1: Don't works
    // Source: https://stackoverflow.com/questions/53969468/how-to-store-files-in-firebase-using-node-js

    const fileUrl = 'https://i.pinimg.com/originals/4a/9d/f8/4a9df83774219e0d02bbb9e5dc9be125.jpg';

    const opts = {
        destination: 'destination/file1.jpg',
        metadata: {
            contentType: 'image/jpeg'
        }
    };

    firebase.storage().bucket().upload(fileUrl, opts);

    //////////////////////////////////////////////////

    /// CASE 2: Don't works

    const bucket = storage.bucket('perfume-group.appspot.com');

    bucket.upload(fileUrl, {
        destination: 'destination/file2.jpg',
        metadata: {
            contentType: 'image/jpeg'
        }
    });

    //////////////////////////////////////////////////

    /// CASE 3: Don't works

    const options = {
      destination: 'destination/file3.jpg',
    };

    // Downloads the file
    await storage.bucket('perfume-group.appspot.com').file(fileUrl).download(options);

    //////////////////////////////////////////////////


    response.status(200).send("Done!");

});

有没有可能奏效的例子？
喜欢这个页面：https://firebase.google.com/docs/storage/web/upload-files

我了解如何向数据库添加数据，但是如何向存储添加文件尚不清楚。

为什么这个解释不起作用？ -> https://googleapis.dev/nodejs/storage/latest/Bucket.html#upload

const {Storage} = require('@google-cloud/storage');
const storage = new Storage();
const bucket = storage.bucket('albums');

await bucket.upload('https://i.pinimg.com/originals/4a/9d/f8/4a9df83774219e0d02bbb9e5dc9be125.jpg', function(err, file, apiResponse) {
      
});

毕竟，我的存储空间还是空的。

Answer 1

您似乎正在尝试在Cloud Functions代码中使用Firebase JavaScript SDK进行Cloud Storage，这是不可能的。用于云存储的Firebase JavaScript SDK仅在Web客户端中可用。

在服务器端环境中，您需要使用Firebase Admin SDK与Cloud Storage进行交互。在这种情况下，您将最终使用pre-initialized version中的Node.js SDK for Cloud Storage。

因此，要了解如何在Cloud Functions中上传图像，我将搜索Node.js SDK for Cloud Storage upload file。这导致：

How to store files in firebase using node.js用于上传文件
Get Download URL from file uploaded with Cloud Functions for Firebase用于获取签名的URL

从可调用的https云功能将图像上传到Firebase存储

1 个答案: