firebase导入服务抛出错误

我正在使用 firebase 函数，我想使用服务帐户密钥 json 来初始化App，并将其放入凭证中，但出现错误

类型参数 '{ "type": string; “project_id”：字符串； “private_key_id”：字符串； “私钥”：字符串； “client_...”不可分配给“string | ServiceAccount”类型的参数。 类型'{“类型”：字符串； “project_id”：字符串； “private_key_id”：字符串； “私钥”：字符串； “client_...”与“ServiceAccount”类型没有共同的属性。

我的index.ts 文件

 import * as functions from 'firebase-functions'
import * as admin from 'firebase-admin'
import {serviceAccount} from './serviceAccount'

console.log(functions.config())
admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),
    databaseURL:functions.config().firebase
});

export const firestore = admin.firestore();
export const firebase = admin.database();

serviceAccount.ts

export const serviceAccount = {

    "type": "service_account",
    "project_id": "lxxxxxx",
    "private_key_id": "xxxxxx",
    "private_key": "-----BEGIN PRIVATE KEY-----xxxxxxx---END PRIVATE KEY-----\n",
    "client_email": "firebase-axxxxx-9b58b.iaxxxceaccount.com",
    "client_id": "xxxxx",
    "auth_uri": "https://accounts.google.com/o/xxxxx",
    "token_uri": "https://accounts.google.com/o/oxxxxn",
    "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
    "clixxxxxx": "https://www.googleapis.com/robot/v1/metadataxxxxirebase-adminsdk-uxxxxxxrviceaccount.com"


}

这行代码的错误

        credential: admin.credential.cert(serviceAccount),

我也经历过这个。解决方案是带上类型ServiceAccount并将从该 json 文件导入的整个对象转换为该类型。

import firebase from 'firebase' 
import * as firebaseAdmin from 'firebase-admin' 
import firebaseConfig from '../firebaseConfig.json' 
import firebaseAccountCredentials from '../serviceAccountCredentials.json'

const serviceAccount = firebaseAccountCredentials as admin.ServiceAccount

firebaseAdmin.initializeApp({
    credential: firebaseAdmin.credential.cert(serviceAccount),
    databaseURL: firebaseConfig.databaseURL 
});