asp.net-web-api - httpclient的自定义实现
问题描述
我有一个需要在请求标头中发送自定义身份验证令牌的 WebAPI。
using (var client = new HttpClient()
{
client.BaseAddress = new Uri("https://example.com");
var request = new HttpRequestMessage(HttpMethod.Post, "/adfs/oauth2/authorize);
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", "<token>");
...
...
//code removed for brevity
}
由于许多操作将调用这些确切的代码行。我计划创建一个已实现的 HttpClient 类,如下所示。此类的对象需要已初始化所有自定义实现。这可以做到吗?
public class MyHttpClient : HttpClient
{
//how do I make sure the object of MyHttpClient will implicitly set all the desired properties (headers etc)
}
using (var client = new MyHttpClient()
{
//client should come with all the properties initialized
}
解决方案
您可以在派生类的构造函数中添加默认属性。
例如
public class MyHttpClient : HttpClient {
public MyHttpClient(): base() {
BaseAddress = new Uri("https://example.com");
DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", "<token>");
//...
//...
//code removed for brevity
}
}