Node-js server for the Play Inegrity API Checker App

If you want to implement the Play Integrity API in your app you shouldn't do it this way. The API server should not send the whole JSON to the app, only a yes/no. Also ideally you should pair the integrity request with another one (for example login). That way your API won't let the user proceed without a valid Integrity token that passes integrity checks (even if your app is reverse engineered).

This app is coded for use in Vercel. To set up yourslef:

1. Fork this repository and add it to Vercel
2. Go to Settings -> Environment Variables on Vercel and set:

• PACKAGE_NAME to your app package name
• GOOGLE_APPLICATION_CREDENTIALS to the json contents of the service account on your Google Cloud project. Make sure it's the same project you linked on your Play Console

1. Make a new project
2. Go to APIs & Services -> Enabled APIs & Services -> Enable APIs & Services and enable the Play Integrity API
3. On the Google Play Integrity API page go to Credentials -> Create Credentials -> Service Accoutnt. Set a name and leave everything to the default.
4. Go to Keys -> Add Key -> Create new key. The json that downloads automactially is the json you need for the Environment Variable.

MIT License

Copyright (c) 2022 Nikolas Spiridakis

Permission is hereby granted, free of charge, to any person obtaining a copy
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