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Autofac.Multitenant

Multitenant application support for Autofac IoC.

Please file issues and pull requests for this package in this repository rather than in the Autofac core repo.

BREAKING CHANGE: As of v4.0.0, the Autofac.Extras.Multitenant package is Autofac.Multitenant.

• Documentation
• NuGet
• Contributing
• Open in Visual Studio Code

Quick Start

// First, create your application-level defaults using a standard
// ContainerBuilder, just as you are used to.
var builder = new ContainerBuilder();
builder.RegisterType<Consumer>()
  .As<IDependencyConsumer>()
  .InstancePerDependency();
builder.RegisterType<BaseDependency>()
  .As<IDependency>()
  .SingleInstance();
var appContainer = builder.Build();

// Once you've built the application-level default container, you
// need to create a tenant identification strategy that implements
// ITenantIdentificationStrategy. This is how the container will
// figure out which tenant is acting and needs dependencies resolved.
var tenantIdentifier = new MyTenantIdentificationStrategy();

// Now create the multitenant container using the application
// container and the tenant identification strategy.
var mtc = new MultitenantContainer(tenantIdentifier, appContainer);

// Configure the overrides for each tenant by passing in the tenant ID
// and a lambda that takes a ContainerBuilder.
mtc.ConfigureTenant(
  '1',
  b => b.RegisterType<Tenant1Dependency>()
    .As<IDependency>()
    .InstancePerDependency());
mtc.ConfigureTenant(
  '2',
  b => b.RegisterType<Tenant2Dependency>()
    .As<IDependency>()
    .SingleInstance());

// Now you can use the multitenant container to resolve instances.

Check out the documentation for more usage details.

Get Help

Need help with Autofac? We have a documentation site as well as API documentation. We're ready to answer your questions on Stack Overflow or check out the discussion forum.