I've updated the code below to reflect this. In general, HttpClientHandler can be used to configure a specific configuration like custom policy, headers, or security mechanism, compression, certificates, etc. This method may be called once, or more than once, when initializing a single client service. Blazor, HttpClientFactory, and Web API - C# Tutorials Blog How to add User-Agent header to HttpClient in .NET - elmah.io Also in this case, we can use the same pattern within a WPF application running on .NET Core 3.0. Fixing .NET's HttpClient - InfoQ Class HttpClientFactory | Google API support libraries HttpClient itself is merely a set of helpers wrapping an HttpMessageHandler; all requests ultimately go through the handler's sole SendAsync method. mrpmorris/fluxor - Gitter How to use IHttpClientFactory in ASP.NET Core - Intacs Corporation Using the HttpClientFactory to request a HttpClient, creates a new instance each time, meaning no need to worry about mutating its state. Incidentally, this is a rather powerful yet little-known feature of HttpClient, as it allows for creating a DelegatingHandler that acts as middleware around the . However, client configuration, such as an API endpoint URL, can be defined in one place within the Startup class. In Part 1, you will create a public Web API . Microsoft recommends using HttpClientFactory for that. 38 I want to use the HttpClientFactory that is available in .NET Core 2.1 but I also want to use the HttpClientHandler to utilize the AutomaticDecompression property when creating HttpClients. In your Program.cs in the main method please add UseServiceProviderFactory extension and use the AutofacServiceProviderFactory. Let's take a look at the API we want to call with a typed . The HttpClientFactory is designed to manage HttpClient instances efficiently; it can manage the lifetime of the HttpClientHandler instances . 在ASP.NET Core中用HttpClient（六）——ASP.NET Core中使用HttpClientFactory Singleton HTTP Client - Gabriel Weyer - A somewhat technical blog Basically, when creating new HttpClient instances, it doesn't recreate a new message handler but it takes one from a pool. Watch HttpClient Usage. Using ASP.NET Core 2.1's HttpClientFactory with Refit's REST library Steve does a very good job on explaining what problems the factory solves and why you should care about it. The microservice to consume exposes CRUD operations on certain entity, in my exemple "Country". I am using below function to deliver push notifications: Public Function Send (ByVal title As String, body As String, token As String) As String Dim retval As String Try If FirebaseApp.DefaultInstance Is Nothing Then Dim defaultApp = FirebaseApp.Create (New AppOptions () With .

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