Google云/ Firebase存储错误：没有`client_email`，就无法签名数据 ...名称：“ SigningError”

如何解决Google云/ Firebase存储错误：没有`client_email`，就无法签名数据 ...名称：“ SigningError”

我正在尝试从Firebase / gc存储中的文件获取一个签名的URL。我可以找到的所有其他解决方案是创建一个服务帐户，下载服务密钥，然后在我的应用程序中使用它，但是我这样做了，但仍然收到错误消息。我也遵循了此建议，并为我的服务帐户SigningError with Firebase getSignedUrl()添加了相关角色。

client_email属性在我正在使用的服务密钥中。

服务帐户和gc相当新，所以我可能缺少一些简单的内容。

我能够列出存储分区，并且对Cloud Firestore的所有其他请求均正常运行。事实证明，仅特定文件的签名URL很难检索。

因为开车有点麻烦，所以任何帮助都会很棒。

这里是我的代码。

const functions = require('firebase-functions');
const admin = require('firebase-admin');
const express = require('express');
const { ApolloServer,gql } = require('apollo-server-express');
const { Storage } = require('@google-cloud/storage');

const serviceAccount = require('./emom-84ee4-firebase-adminsdk-2309z-aab93226ec.json');
const keyfileName = require('./emom-84ee4-ac9e94667d5e.json');

admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),databaseURL: "https://emom-84ee4.firebaseio.com"
});

const storage = new Storage({
    projectId: 'emom-84ee4',keyFileName: keyfileName,// TRIED THIS ALSO => keyFileName: serviceAccount
});

const typeDefs = gql`
    type DownloadURL {
        url: String
    }

    type Comment {
        artist: String,comment: String,userId: String,replies: [Comment]
    }

    type Track {
        album: String,artist: String,artistId: String,description: String,genre: String,id: ID,title: String,duration: Int,comments: [Comment]
    }
    type User {
        artist: String,artistImageUrl: String,artistName: String,bio: String,location: String,website: String
    }
    type Query {
        tracks: [Track]
        users: [User]
        downloadUrl: DownloadURL
    }
`

const resolvers = {
    Query: {
        async tracks() {
            const tracks = await admin
            .firestore()
            .collection('tracks')
            .get();
        return tracks.docs.map(track => track.data());
    },async users() {
        const users = await admin
            .firestore()
            .collection('users')
            .get();
            return users.docs.map(user => user.data());
    },// ISSUE HAPPENING HERE
    async downloadUrl() {
        try {
            const signedUrl = await storage
                .bucket('emom-84ee4.appspot.com')
                .file('tracks/ds5MaDn5ewxxvV0CK9GG.mp3')
                .getSignedUrl({ action: 'read',expires: '10-25-2022' });
            const url = signedUrl;
            console.log(url)
            return url;
        } catch (error) {
            console.error(error);
        }
    }
    }
}

const app = express();
const server = new ApolloServer({ typeDefs,resolvers });

server.applyMiddleware({ app,path: '/',cors: true });

exports.graph = functions.https.onRequest(app);

解决方法

我在运行 client_email 时收到“无法在没有 firebase emulators:start 的情况下签署数据”错误。

我通过 setting up a service account and downloading the service account .json credentials file 将其修复为 service_account.json，然后运行 ​​GOOGLE_APPLICATION_CREDENTIALS="service_account.json" firebase emulators:start

,

您需要在初始化应用时添加服务帐号密钥。

var admin = require("firebase-admin");

var creds = require("[path to your serviceAccountKey.json]");

admin.initializeApp({
  credential: admin.credential.cert(creds),});

如果您没有服务帐户，可以阅读如何获取它here

或使用 https://console.firebase.google.com/project/**YOUR_PROJECT**/settings/serviceaccounts/adminsdk