Firebase Functions Exporter

A utility that quickly exports all TypeScript/JavaScript Firebase Functions from all of a directory's subdirectories.

Usage

1. Install the package in your Firebase Functions directory (usually /functions):
   1. With Yarn: yarn add firebase-functions-exporter
   2. With NPM: npm i --save firebase-functions-exporter
2. Write your Firebase Functions in their own files, following the pattern [NAME].function.ts or [NAME].function.js, grouped in directories of your choosing. For example:
   1. TypeScript (with functions grouped by type):

      functions
        src
          index.ts
          callable
            updateUser.function.ts
            createUser.function.ts
          restful
            posts.function.ts
          event
            onUserCreate.function.ts
      

      functions/src/event/onUserCreate.function.ts:

      import * as functions from 'firebase-functions';
      
      export const onUserCreate = functions.auth.user().onCreate((user, context) => {
        functions.logger().log(`User created: ${JSON.stringify(user)}`);
      });

   2. JavaScript (with functions grouped by category):

      functions
         index.js
         users
           createUser.function.js
           updateUser.function.js
           onUserCreate.function.js
         posts
           onPostUpdate.function.js
      

      functions/posts/onPostUpdate.function.js

      const functions = require('firebase-functions');
      
      exports.onPostUpdate = functions.firestore.document('/post/{postId}')
       .onUpdate((snap, context) => {
         functions.logger.log(`Post Updated: ${JSON.stringify(snap)}`);
      })

3. Define exportFunctions as the export in the functions index file:
   1. TypeScript: functions/src/index.ts:

      import { exportFunctions } from 'firebase-functions-exporter';
      
      module.exports = exportFunctions();

   2. JavaScript: functions/index.js:

      const { exportFunctions } = require('firebase-functions-exporter');
      
      module.exports = exportFunctions()

4. Deploy to Firebase Functions: firebase deploy --only functions.

Notes

• If using default exports, the function will take the name of the file, i.e. the name of a default exported function in the file onUserCreate.function.ts will be onUserCreate.
• Deploying to Firebase Functions will fail if two or more functions have the same name.

Licence

MIT