firebase-admin在firebase云函数中使用typescript

Question

我在云函数上使用了firebase云函数和javascript。而且，我想从javascript切换到typescript。

但是，我不能在typescript上使用firebase-admin，因为以下命令失败。

command: npm install @types/firebase-admin --save-dev
error:  '@types/firebase-admin' is not in the npm registry.

根据此发行说明，firebase管理员似乎支持typescript。谁能告诉我们如何在云函数上使用typescript和firebase-admin？

https://firebase.google.com/support/release-notes/admin/node#4.1.3

Answer 1

您不需要安装@types模块，因为firebase-admin附带TypeScript支持。只需安装firebase-admin，就可以在TypeScript中使用它。

import * as admin from 'firebase-admin';

Answer 2

当使用ES6模块导入时，似乎提供了类型：

1. tsconfig.json

{
    "compilerOptions": {
        "resolveJsonModule": true,               // json imports
        "esModuleInterop": true,                 // import common modules as ES6 Modules
        "allowSyntheticDefaultImports": true,    // support typesystem compatibility
    }
}

1. index.ts

import firebase from 'firebase-admin';
import serviceAccount from './service-account.json';

const params = {               //clone json object into new object to make typescript happy
    type: serviceAccount.type,
    projectId: serviceAccount.project_id,
    privateKeyId: serviceAccount.private_key_id,
    privateKey: serviceAccount.private_key,
    clientEmail: serviceAccount.client_email,
    clientId: serviceAccount.client_id,
    authUri: serviceAccount.auth_uri,
    tokenUri: serviceAccount.token_uri,
    authProviderX509CertUrl: serviceAccount.auth_provider_x509_cert_url,
    clientC509CertUrl: serviceAccount.client_x509_cert_url
}

firebase.initializeApp({
    credential: firebase.credential.cert(params),
})

Answer 3

另一种选择可以是这种方式。

import * as admin from 'firebase-admin';
import * as serviceAccount from './service-account.json';

const firebaseAdmin = admin.initializeApp({
   credential: admin.credential.cert(serviceAccount as admin.ServiceAccount)
});