How to load dotenv config and initializeApp only once in firebase function second generation

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I have to load dotenv config and admin.initializeApp methods in every function file. Precisely, I have to write below code in every file:

import { config } from "dotenv";
import * as admin from "firebase-admin";
config();

if (!admin.apps.length) admin.initializeApp();

Is there a way to write this code only in index file and all functions get access to env variables as well as app get initialized in all functions.

  • Instead of index, why not have a single separate module to include that exports the shared data to use wherever these are needed?

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  • @DougStevensonSo, I have extract it in function and call it on every firebase function. It is not possible to write this code only once in index. Right?

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