Register Callbacks
Container Build Callbacks
You can register any arbitrary action to happen at container build time by registering a build callback.
builder.RegisterBuildCallback(container =>
{
    var serviceA = container.Resolve<ServiceA>();
    var serviceB = container.Resolve<ServiceB>();
    // ...
});
- We can use 
IObjectResolveras a callback argument. - For more information about 
IObjectResolver, see Container API 
Container Dispose Callback
builder.RegisterDisposeCallback(container =>
{
    // Processes you want to perform in which the container is disposed.
});