Master Ash Framework [Ep. 2]: Multi-Tenancy Foundations (Part 1) - Organizations & Data Isolation

Real SaaS applications need multi-tenancy—the ability to serve multiple customers (tenants) with completely isolated data. In Part 1 of our multi-tenancy series, we build the foundation for organizations in our task manager. We explore Ash Framework's attribute-based multi-tenancy strategy and create the Organization resource with auto-generated slugs, custom validations, and unique identities. You'll learn how to use Ash generators, implement change hooks for automatic slug generation from organization names, and connect users to organizations through foreign keys. We test everything in IEx, creating organizations and verifying that users are properly associated. By the end, you'll understand the core concepts of multi-tenant architecture and have organizations ready for team members. 00:00 Introduction - Why Multi-Tenancy Matters 00:40 What is Multi-Tenancy? Architecture Overview 01:17 Ash Framework's Multi-Tenancy Strategies 02:00 Database Schema Planning (Organizations, Users, Memberships) 04:45 Creating the Organization Resource with Generators 05:47 Understanding the Generated Code Structure 08:08 Adding Slug Attribute for Clean URLs 12:29 Auto-Generating Slugs with Change Hooks 16:41 Adding Validations for Data Quality 20:56 Creating Unique Identity Constraints 21:02 Testing Organization Creation in IEx 23:45 Connecting Users to Organizations 27:20 Updating User Registration for Organization ID 30:15 Testing User-Organization Relationships 34:00 Recap & Next Steps 💻 CODE: https://github.com/ElixirMentor/task_manager/tree/episode_02-04_multi_tenancy 🔗 RESOURCES: Ash Multi-Tenancy Docs: https://ash-hq.org/docs/guides/ash/latest/topics/multitenancy Ash Generators: https://ash-hq.org/docs/guides/ash/latest/topics/development/generators Discord: https://discord.gg/rsTARfP4xx 💪 SUPPORT ELIXIR MENTOR: https://elixirmentor.com YouTube Membership: https://www.youtube.com/channel/UChbS_z6KHQiIu9et38O37eQ/join #AshFramework #Elixir #MultiTenancy #SaaS #Phoenix #WebDevelopment #ElixirTutorial