modules for shared types and functions

Author: Resul Avan

.circleci/config.yml

@@ -7,11 +7,8 @@ jobs:
     steps:
       - checkout
       - run:
-          name: Install commons-types dependencies
-          command: npm --prefix functions commons-types
-      - run:
-          name: Build commons-types
-          command: npm --prefix functions run build
+          name: Install dependencies
+          command: npm run install
       - run:
           name: Add .env
           command: |
@@ -45,21 +42,15 @@ jobs:
             echo "  console.log('firebase-messaging-sw.js setBackgroundMessageHandler', payload)" >> src/static/firebase-messaging-sw.js
             echo "})" >> src/static/firebase-messaging-sw.js
             echo "" >> src/static/firebase-messaging-sw.js
-            echo ""
-            cat src/static/firebase-messaging-sw.js
-      - run:
-          name: Install functions dependencies
-          command: npm --prefix functions install
-      - run:
-          name: Install src dependencies
-          command: npm --prefix src install
       - run:
           name: deploy to Firebase Hosting
           command: ./src/node_modules/.bin/firebase deploy --project=$FIREBASE_PROJECT_ID --token=$FIREBASE_CI_TOKEN
       - run:
           name: Call to warm up
           command: |
             curl "$WEBSITE_URL"
+            curl "$WEBSITE_URL/api/healthy"
+            curl "$WEBSITE_URL/sitemap.xml"
 
 workflows:
   version: 2

.gitignore

@@ -103,7 +103,7 @@ node_modules
 
 # modules
 lib
-**/*.tar.gz
+**/*.tgz
 
 # firebase
 functions/nuxt.config.ts

README.md

@@ -17,6 +17,13 @@ See the [Features](#features) for more functionalities
 |<img width="1604" alt="Profile" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Fprofile.png?alt=media&token=b14fd223-1248-44bc-8f9f-92f45273c716"> |  <img width="1604" alt="Ligthbox" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Flightbox.png?alt=media&token=347fe927-f425-49dd-8d2b-05c626de48cf">|<img width="1604" alt="Ligthbox view" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Flightbox-view.png?alt=media&token=d6e31892-c0cb-4708-9b9f-d53d52644e9e">|
 |<img width="1604" alt="Crop" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Fcrop.png?alt=media&token=d547fe2e-fe51-4904-8e22-f3c4a6d6e886">  |  <img width="1604" alt="login" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Flogin.png?alt=media&token=08d3333c-d54f-495a-937b-fa178d22b21d">|<img width="1604" alt="register" src="https://firebasestorage.googleapis.com/v0/b/nuxt-ts-firebase-auth-ssr.appspot.com/o/github%2Fregister.png?alt=media&token=2cd96b4d-3f34-4a4c-a4a5-0de7b72c3d6a">|
 
+## Folder Structure
+
+- [functions](./functions): source folder for firebase-functions
+    - [modules](./functions/modules): Shared types and functions between front-end and back-end (firebase-functions and nuxt serverMiddleware)
+- [src](./src): nuxt application
+
+
 ## DETAILED DOCUMENTATION
 > Coming soon
 
@@ -174,10 +181,9 @@ FIREBASE_MEASUREMENT_ID= ***
 
 the root `package.json` has been created to manage build and deployment easily. 
 
-### install dependencies
+### install dependencies (not `npm install` or `npm i` )
 ```bash
-$ npm --prefix functions install
-$ npm --prefix src install
+$ npm run install
 ```
 
 ### deploy

functions/README.md

@@ -37,3 +37,6 @@
 
 ### deploy sitemapApp
     firebase deploy --only functions:sitemapApp
+
+## install modules
+go to [modules](./modules)

functions/modules/README.md

@@ -1,24 +1,14 @@
 # modules
+The code has nuxt frontend application and firebase functions as backend. Additionally, nuxt application has `serverMiddleware`. That `serverMiddleware` has same functionality as `firebase-functions`. That means there are some shared types and functions.
 
-## build
-    npm i
-    npm run build
-    
-## install local modules
-    npm i <local-path-of-the-module>
-
-or 
-    npm i <tar.gz-path-of-the-module>   
-    
-
-sample
+The `modules` has been created to keep consistency, the code clean and reduce the maintenance duration.
 
-    npm i ../modules/types-module
-    npm i ../modules/types-module/types-module-1.0.0.tgz
+The modules:
+- [types-module](./types-module): has all shared types (enums, interfaces, constants)
+- [handlers-module](./handlers-module): has all express handlers. Also, has all backend services like firebase-admin and firestore
 
-## remove local modules
-    npm remove <package-name-of-the-module>
+## npm install on all modules
+    npm run install
 
-sample
-
-    npm remove types-module
+## build all modules
+    npm run build

functions/modules/handlers-module/README.md

@@ -1,11 +1,19 @@
-# types module
+# handlers-module
 
 ## build
     npm i
     npm run build
 
 ## install
-    npm i ../modules/types-module
+    npm i <relative-path-from-target-package>
+
+`on function`
+    
+    npm i ../modules/handlers-module
+
+`on src (nuxt)`
+   
+    npm i ../functions/modules/handlers-module
 
 ## remove local modules
-    npm remove types-module
+    npm remove handlers-module

functions/modules/handlers-module/src/config.ts

@@ -0,0 +1,35 @@
+import admin from 'firebase-admin'
+
+export class HandlerConfig {
+
+  private static credentials = ''
+
+  private static readonly defaultInitializer = () => {
+    admin.initializeApp({
+      credential: admin.credential.applicationDefault()
+    })
+    console.log('firebase admin is initialized by default credentials')
+    return admin
+  }
+
+  private static readonly credentialsInitializer = () => {
+    const serviceAccount = HandlerConfig.credentials
+    // const serviceAccount = require(HandlerConfig.credentials)
+    admin.initializeApp({
+      credential: admin.credential.cert(serviceAccount)
+    })
+    console.log('firebase admin is initialized by custom credentials')
+  }
+
+  static setCredentials = (credentials: string) => {
+    HandlerConfig.credentials = credentials
+  }
+
+  static getAdmin () {
+    if (admin.apps.length === 0) {
+      this.credentials ? this.credentialsInitializer() : this.defaultInitializer()
+    }
+    return admin;
+  }
+
+}

functions/modules/handlers-module/src/handler-config.ts

@@ -1,2 +1,5 @@
+export * from './handler-config'
 export * from './api'
 export * from './sitemap-handler'
+export * from './service/request-handler-service'
+export * from './service/global-service'

functions/modules/handlers-module/src/index.ts

@@ -1,4 +1,3 @@
-import admin from 'firebase-admin'
 import {
   AuthUser,
   collection,
@@ -13,19 +12,18 @@ import {
   WhereClause
 } from 'types-module'
 import { deleteModel, getModelById, getModelsByWhereClauses } from './firestore-admin-collection-service'
-import { HandlerConfig } from '../config'
+import { HandlerConfig } from '../handler-config'
+import admin from 'firebase-admin'
 import DecodedIdToken = admin.auth.DecodedIdToken
 
-HandlerConfig.initialize()
-
 export const getDecodedIdToken = (idToken: string): Promise<DecodedIdToken> => {
-  return admin.auth()
+  return HandlerConfig.getAdmin().auth()
     .verifyIdToken(idToken)
     .then((decodedIdToken: DecodedIdToken) => decodedIdToken)
 }
 
 export const setCustomClaims = async (uid: string, firebaseClaims: FirebaseClaims): Promise<void> => {
-  await admin.auth().setCustomUserClaims(uid, firebaseClaims);
+  await HandlerConfig.getAdmin().auth().setCustomUserClaims(uid, firebaseClaims);
 }
 
 export const validateClaimsAndGet = async (decodedIdToken: DecodedIdToken) => {