firebase-admin with typescript in firebase cloud functions

Question

I am using firebase cloud functions with javascript on cloud functions. And, I want to switch from javascript to typescript.

However I cannot use firebase-admin on typescript as following command failed.

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

According to this release note, it looks that firebase admin support typescript. Can somebody tell us how to use typescript with firebase-admin on cloud functions?

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

Answer 1

Another option could be this way.

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)
});

Answer 2

You don't need to install an @types module, because firebase-admin ships with TypeScript support in the box. You should be able to use it with TypeScript just by installing firebase-admin.

import * as admin from 'firebase-admin';