BeforeStartEvent(IServiceProvider, DistributedApplicationModel) Constructor

Reference

Definition

Namespace:: Aspire.Hosting.ApplicationModel

Assembly:: Aspire.Hosting.dll

Package:: Aspire.Hosting v8.2.0

Source:: BeforeStartEvent.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

This experimental event is published before the application starts.

public BeforeStartEvent (IServiceProvider services, Aspire.Hosting.ApplicationModel.DistributedApplicationModel model);

new Aspire.Hosting.ApplicationModel.BeforeStartEvent : IServiceProvider * Aspire.Hosting.ApplicationModel.DistributedApplicationModel -> Aspire.Hosting.ApplicationModel.BeforeStartEvent

Public Sub New (services As IServiceProvider, model As DistributedApplicationModel)

Parameters

services: IServiceProvider

The IServiceProvider instance.

model: DistributedApplicationModel

The DistributedApplicationModel instance.

Examples

Subscribe to the BeforeStartEvent event and resolve the distributed application model.

var builder = DistributedApplication.CreateBuilder(args);
builder.Eventing.Subscribe<BeforeStartEvent>(async (@event, cancellationToken) => {
  var appModel = @event.ServiceProvider.GetRequiredService<DistributedApplicationModel>();
  // Mutate the distributed application model.
});

Remarks

Subscribing to this event is analogous to implementing the BeforeStartAsync(DistributedApplicationModel, CancellationToken) method. This event provides access to the IServiceProvider interface to resolve dependencies including DistributedApplicationModel service which is passed in as an argument in BeforeStartAsync(DistributedApplicationModel, CancellationToken).

Applies to

Share via