InApp Billing Verification Handler

InApp Purchase and Subscription for Apple, Google Play, Amazon Store, Roku, and Windows Verification Handler in Firebase Functions using popular node in-app-purchase module https://github.com/voltrue2/in-app-purchase

Resources Required

Firebase Functions - https://firebase.google.com/docs/functions
Firebase Firestore - https://firebase.google.com/docs/firestore

Setup Guide

Setup for Android

To set up purchase verification, follow these steps.

Log in to the Google API console with your credentials
Under Select a project find your app's project
Select your organization, application, then OPEN
Select API Credentials > Credentials > Create credentials
From the drop-down menu, select Service account key
Select an existing service account or create a new one
Select JSON as your Key type
Select Project > Viewer as your Role from the drop-down menu
Select Create

Now, a JSON key will be downloaded to your computer. Next, follow these steps to complete the setup.

Go to the Google Play Store and log in
Select Settings
Select Developer account > API access
Find your application project and select LINK
Under Service Accounts, on the relevant email address, select GRANT ACCESS
In the Add a new user dialogue, select Finance from the Role drop-down menu
- If you want this user to have global access, select ADD USER
- If you want this user to have access only to one app, select Add an app, then ADD USER
Navigate to Developer account > Users & permissions to view information on your users and access permissions

Great job! Purchase verification is now active for Android.

Setup for iOS

Nothing Special Need to be Done For iOS.

Setup Other Platforms

Refer https://github.com/voltrue2/in-app-purchase for other platform setup

Integration Guide

Integration Google IAP

Copy Base64 public key string from the Developer Console account for your application in file ./functions/google/iap-live and ./functions/google/iap-sandbox
replace ./functions/google/api-test.json with you private key (created in the setup process)
Open ./function/index.js and replace

let serviceAccount = require("./google/api-test.json");

with

let serviceAccount = require("./google/<your_private_key_name>.json");

Integration Google Subscription

provide following credentails that you have acquired in setup process

googleAccToken
googleRefToken
googleClientID
googleClientSecret

Integration iOS IAP

Nothing Special Need to be Done For iOS.

Integration iOS Subscription

provide following credentails that you have acquired in setup process

applePassword (this comes from iTunes Connect)

Integration Other Platforms

Refer https://github.com/voltrue2/in-app-purchase for other platform setup

Project Setup

You have two option here

Setup a new Firebase Project and replace functions folder content
Project Firebase Application Id in .firebaserc json under 'default' key

That is it! Deploy on Firebase Function

Usage Instructions

Url

<firebase_function_baseurl>/verifyInAppPurchase

Method

POST

Header

Content-Type: application/json

Params

type=[string] (apple/google)
transactionId=[string]
receipt=[string|json] (refer https://github.com/voltrue2/in-app-purchase for detail)

Success Response

Code: 200
Content: Verified

Error Response

Code: 400
Content: Invalid Request | Duplicate Transaction | Invalid TransactionId | Item is Canelled

Sample Format iOS

curl --location --request POST 'https://<firebase_function_baseurl>/verifyInAppPurchase' \
--header 'Content-Type: application/json' \
--data-raw '{"receipt":"<recipt>", "transactionId":"<transcation_id>", "type":"apple"}'

Sample Format Android

curl --location --request POST 'https://<firebase_function_baseurl>/verifyInAppPurchase' \
--header 'Content-Type: application/json' \
--data-raw '{"receipt":{"packageName": <package_name>, "productId": <product_id>, "purchaseToken":<purchase_token>}, "transactionId":"<purchase_token>", "type":"google"}'

morphinewan / firebase-function-iap-verification Goto Github PK

firebase-function-iap-verification's Introduction