Toolbelt.Blazor.HttpClientInterceptor 2.1.0

Blazor HttpClient Interceptor

Summary

The class library that intercept all of the sending HTTP requests on a client side Blazor application.

How to install and use?

Step.1 Install the library via NuGet package, like this.

> dotnet add package Toolbelt.Blazor.HttpClientInterceptor

Step.2 Register "HttpClientInterceptor" service into the DI container, at ConfigureService method in the Startup class of your Blazor application.

using Toolbelt.Blazor.Extensions.DependencyInjection; // <- Add this, and...
...
public class Startup
{
  public void ConfigureServices(IServiceCollection services)
  {
    services.AddHttpClientInterceptor(); // <- Add this line.
    ...

Step.3 Install "HttpClientInterceptor" service to intercepting works well, at Configure method in the Startup class of your Blazor application.

public void Configure(IBlazorApplicationBuilder app)
{
  app.UseHttpClientInterceptor(); // <- Add this line.
  ...

That's all.

You can subscribe the events that will occur before/after sending all of the HTTP requests, at anywhere you can get HttpClientInterceptor service from the DI container.

@using Toolbelt.Blazor
@inject HttpClientInterceptor Interceptor
...
@functions {
  protected override void OnInit()
  {
    this.Interceptor.BeforeSend += Interceptor_BeforeSend;
    ...
  }

  void Interceptor_BeforeSend(object sender, EventArgs e)
  {
    // Do something here what you want to do.
  }
  ...

Note: Please remeber that if you use HttpClientInterceptor to subscribe BeforeSend/AfterSend events in Blazor components (.cshtml), you should unsubscribe events when the components is discrded. To do it, you should implement IDisposable interface in that component, like this code:

@implements IDisposable
...
public void Dispose()
{
  this.Interceptor.BeforeSend -= Interceptor_BeforeSend;
}

License

Mozilla Public License Version 2.0