Registering handlers with different service lifetime

[neemesis]

Hello

Is it possible to register the handlers with different ServiceLifetime, for example as Singleton instead of the default Transient registration?

[litenova]

Hello,

The public API enforces transient lifetime for all handlers discovered via Register() or RegisterFromAssembly(). This prevents captive dependencies and thread safety issues by default.

For stateless, thread-safe handlers where you need singleton performance, manually register the handler before calling AddLiteBus:

var services = new ServiceCollection();

// 1. Manually register as singleton
services.AddSingleton<MyStatelessSingletonHandler>();

// 2. AddLiteBus will detect existing registration and skip its own
services.AddLiteBus(modules =>
{
    modules.AddCommandModule(cmd => cmd.RegisterFromAssembly(typeof(MyCommand).Assembly));
});

It's a good feature to have and I'll add it in next versions.