Welcome
What will you learn in this course?
Who is the course for and prerequisites
How to follow along
Let's Build It: Multi-Tenant SaaS App in TypeScript
Learn how to build a full-stack production-ready multi-tenant Saas Application in TypeScript and React
About This Course
Want to build a real SaaS product and learn how to scale it for multiple customers? This fast-paced course will
show you how to build a full-stack, multi-tenant B2B SaaS application from scratch, entirely in TypeScript.
You'll follow along with James, an experienced Engineering Director with 10+ years of real-world experience building
B2B SaaS platforms. You'll build a collaborative note-taking tool that supports multiple organizations, each with its
own users, data, and access control. But this isn't just about note-taking! It's about teaching you the architecture,
infrastructure, and security concepts behind any robust multi-tenant SaaS product.
Along the way, you'll integrate user authentication, build a secure backend API with database isolation, deploy cloud
infrastructure using AWS CDK, and even add Stripe payments so your users can subscribe to your app. And yes - you'll
do all of this in one codebase, entirely in TypeScript.
This course is perfect for indie hackers, bootstrappers, and developers looking to sharpen their TypeScript skills
while building something real that could turn into a profitable business.
Course Curriculum
8h 36m 10 sections
Brief history of B2B SaaS
Multi tenancy explained
Data Isolation Models in SaaS
Authorization Models
Business Considerations & Pricing
Introduction
Wheel Of Compromise
Functional Requirements
Out Of Scope
Choosing a Tech Stack
Benefits of starting with the front end
Frontend Architecture
Creating a Vite application in React
Introduction to TanStack Query
Routing with TanStack Router
Styling with CSS modules
Working with mocked data
Creating front end components
Testing with Playwright
Introduction to AWS
Infrastructure as Code on AWS
Deploying AWS Services
Overview of Backend Architecture
Creating The Backend Stack
Deploying Backend Services
Creating The FrontEnd Stack
Recap - Authorization models for multi-tenancy
IAM Roles & Permissions
Cognito User Groups
Token Based Authentication Explained
Setting Up Cognito Hosted UI
Styling the Hosted UI
Adding Auth to the Front End
Recap - Tenant Isolation Strategies
Database Design in DynamoDB
Accessing Cognito From NodeJS
Tenant Creation Logic
Assuming The Tenant Role
Handling HTTP Requests with AWS Lambda
Creating the Notes Endpoint
Querying DynamoDB From The Reports Endpoint
Adding Users Into A Subscription
Introduction to Stripe
Setting Up Stripe
Inserting Stripe Checkout Into Signup Flow
Creating A Stripe Checkout Session
Creating the Stripe Webhook
Testing Stripe Checkout
Tracking SaaS Metrics (MRR, churn rate, LTV, CAC)
Product Channel Fit
SEO Best Practises
Pricing
Getting Your First Users
Building a Wait List
Meet Your Instructor
James Charlesworth
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