Multitenant SaaS App using Firebase and Flutter

Question

I'm evaluating Firebase to develop an application in SaaS mode, where people from multiple companies can access it. Each person in a company should only access data from their company and not with another company. Also within the company, profiles of what each person can access and what not can be defined.

1. The Firebase documentation recommends not using a multi-tenancy approach (https://firebase.google.com/docs/projects/learn-more). His recommendation is to manage a firebase project for each company. My doubts: Is this really necessary? Would it involve managing different Apps in PlayStores? Can Firebase projects be programmatically created?

2. On the other hand, Google Cloud launched a GCIP authentication service that allows multi-tenant (https://cloud.google.com/identity-platform/docs/multi-tenancy-authentication). My doubts are: 1. To use that with Firebase, would I have to create backend services with additional complexities to Firebase and Flutter? 2. Is it possible to use this service without losing the offline access property that Firebase offers?

Thank you,

David

Answer 1

I may have a possible solution {i have tried it partially}

Create a Master API backed - manage all common feature/functionalities in the master API

eg: CIM - Customer information management UCID - unique customer id {based on mobileno+OTP} Client ID - {ClientA,B,K,Y} which means the UCID belongs to these client Apps

ClientAPP - Seperate Build for each clients {published in their app stores} ClientApp ID - 001 register/login - check if mobileno is registered in ClientID Endpoint API - Manage client specific data Eg: App restriction {Countries,Age,etc} App Logo App Splashscreen : Background = {image/URL}

ClientApp ID - 003 register/login - check if mobileno is registered in ClientID Endpoint API - Manage client specific data Eg: App restriction {Countries,Age,etc} App Logo App Splashscreen : Background = {Gradient/Code}

sample-multi-tenant API management on Hasura