HttpResponse.OnStarting Method

Definition

Namespace:

Microsoft.AspNetCore.Http

Assembly:

Microsoft.AspNetCore.Http.Abstractions.dll

Package:

Microsoft.AspNetCore.App.Ref v9.0.0

Overloads

OnStarting(Func<Task>)	Adds a delegate to be invoked just before response headers will be sent to the client. Callbacks registered here run in reverse order.
OnStarting(Func<Object,Task>, Object)	Adds a delegate to be invoked just before response headers will be sent to the client. Callbacks registered here run in reverse order.

OnStarting(Func<Task>)

Adds a delegate to be invoked just before response headers will be sent to the client. Callbacks registered here run in reverse order.

C#

public virtual void OnStarting (Func<System.Threading.Tasks.Task> callback);

Parameters

callback

Func<Task>

The delegate to execute.

Remarks

Callbacks registered here run in reverse order. The last one registered is invoked first. The reverse order is done to replicate the way middleware works, with the inner-most middleware looking at the response first.

OnStarting(Func<Object,Task>, Object)

Adds a delegate to be invoked just before response headers will be sent to the client. Callbacks registered here run in reverse order.

C#

public abstract void OnStarting (Func<object,System.Threading.Tasks.Task> callback, object state);

Parameters

callback

Func<Object,Task>

The delegate to execute.

state

Object

A state object to capture and pass back to the delegate.

Remarks

Callbacks registered here run in reverse order. The last one registered is invoked first. The reverse order is done to replicate the way middleware works, with the inner-most middleware looking at the response first.