Defensive database context
To make sure that data from different tenants doesn't get mixed in multi-tenant application we can add some defensive behaviour to multi-tenant database context to build additional safety net for application developers.
The following demonstrates defensive database context and it uses the following classes:
- ITenantProvider - interface for tenant providers,
- DummyTenantProvider - tenant provider for demo purposes,
- BaseEntity - base class for all entities,
- Person - sample entity type for this demo,
- CrossTenantUpdateException - exception type for operations that use data from multiple tenants,
- SampleDbContext - defensive database context.
The sample below creates new instance of database context, adds two instances of Person entities that belong to different tenants and then saves changes. If cross-tenant operation exception is thrown then tenant ID-s involved to incident are written out.
- Defensive database context for multi-tenant ASP.NET Core applications (Gunnar Peipman)
- Implementing tenant providers on ASP.NET Core (Gunnar Peipman)