Jon P. Smith, author of Entity Framework Core in Action, explains what a multi-tenant app is and then digs into the things you need to do to make a multi-tenant app using ASP.NET Core with EF Core.

00:00 Countdown
02:19 Introduction and Community Links
18:25 What are multi-tenant web applications?
21:14 Single level multi-tenant demo
29:00 Partitioning tenants with EF Core QueryFilter
38:00 Admin features: creating users and tenants
43:00 Q&A
43:00 Hierarchical multi-tenant
59:00 How to get started
1:06:30 Database sharding and connection string management
1:16:30 Scaling with Azure SQL Elastic Pools
1:19:00 Conclusion
 

1. Global query filters in Entity Framework Core 2.0
2. Implementing tenant providers on ASP.NET Core 
   
3. Implementing database per tenant strategy on ASP.NET Core
4. Handling missing tenants in ASP.NET Core
5. Unit testing multi-tenant database provider
6. Defensive database context for multi-tenant ASP.NET Core applications 

Writing Multitenant ASP.NET Core Applications 

Finbuckle.MultiTenant

Finbuckle.MultiTenant is an open source framework for multitenant support in ASP.NET Core 2.0+ applications. Check out the GitHub repository for source code and samples or to provide feedback and suggestions. 

Identity Management for Multitenant Applications 

ASP.NET Core Multi-tenancy: Creating theme-able applications
ASP.NET Core Multi-tenancy: Tenant lifetime
Building multi-tenant applications with ASP.NET Core (ASP.NET 5)
Using Google Analytics in Multi-tenant applications
Introducing SaasKit - Multi-tenancy made easy

There are several situations where you need to manage row level security for your database:

• Multi-tenancy (SaaS)
• Role or claim based row level security
• Logical delete
• Enabled/Disabled data 

Custom routing to support multi-tenancy applications

to provide software that is able to handle individual users in one application by separate each user’s data