设置HttpClient的授权标题
我有一个HttpClient，我正在使用REST API。 但是我有麻烦设置授权标题。 我需要将标题设置为从我的OAuth请求收到的令牌。 我看到了一些.NET代码，
httpClient.DefaultRequestHeaders.Authorization = new Credential(OAuth.token); 但是，WinRT中不存在Credential类。 任何人有任何想法如何设置授权标题？
所以做到这一点的方式是以下几点，
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", "Your Oauth token");
request.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue( "Basic", Convert.ToBase64String( System.Text.ASCIIEncoding.ASCII.GetBytes( string.Format("{0}:{1}", "yourusername", "yourpwd"))));
我寻找一个很好的方法来处理这个问题，我正在看同样的问题，希望这个答案可以帮助像我这样的一些问题的每个人。
using (var client = new HttpClient()) { var url = "https://www.theidentityhub.com/{tenant}/api/identity/v1"; client.DefaultRequestHeaders.Add("Authorization", "Bearer " + accessToken); var response = await client.GetStringAsync(url); // Parse JSON response. .... }
参考https://www.theidentityhub.com/hub/Documentation/CallTheIdentityHubApi
我同意TheWhiteRabbit的答案，但如果你有很多使用HttpClient的代码似乎有点重复的代码。
我想有两种方法可以改善答案。
创build一个帮助类来创build客户端：
public static class ClientHelper { // Basic auth public static HttpClient GetClient(string username,string password) { var authValue = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.UTF8.GetBytes($"{username}:{password}"))); var client = new HttpClient(){ DefaultRequestHeaders = { Authorization = authValue} //Set some other client defaults like timeout / BaseAddress }; return client; } // Auth with bearer token public static HttpClient GetClient(string token) { var authValue = new AuthenticationHeaderValue("Bearer", token); var client = new HttpClient(){ DefaultRequestHeaders = { Authorization = authValue} //Set some other client defaults like timeout / BaseAddress }; return client; } }
用法：
using(var client = ClientHelper.GetClient(username,password)) { //Perform some http call } using(var client = ClientHelper.GetClient(token)) { //Perform some http call }
创build一个扩展方法：
不赢取美容奖品，但工程很好:)
public static class HttpClientExtentions { public static AuthenticationHeaderValue ToAuthHeaderValue(this string username, string password) { return new AuthenticationHeaderValue("Basic", Convert.ToBase64String( System.Text.Encoding.ASCII.GetBytes( $"{username}:{password}"))); } }
用法：
using (var client = new HttpClient()) { client.DefaultRequestHeaders.Authorization = _username.ToAuthHeaderValue(_password); }
再次，我认为2上面的选项使客户端使用语句less一些重复。 请记住，如果您正在进行多个http调用，重用HttpClient是最佳做法，但是我认为这个问题有点超出范围。
使用System.Net.Http组件的AuthenticationHeaderValue类
public AuthenticationHeaderValue( string scheme, string parameter )
我们可以像这样为httpclient设置或更新现有的Authorization标头：
httpclient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", TokenResponse.AccessToken);
因为重用HttpClient实例是一个很好的做法 ，对于性能问题，并且因为没有答案给出这个解决scheme，所以我把这个链接放在了我对类似问题的答案上：
这可能有助于设置标题：
WebClient client = new WebClient(); string authInfo = this.credentials.UserName + ":" + this.credentials.Password; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); client.Headers["Authorization"] = "Basic " + authInfo;
这可以工作，如果您从服务接收JSON或XML，我想这可以给你一个关于头和Ttypes如何工作的想法，如果你使用函数MakeXmlRequest（把结果放在xmldocumnet）和MakeJsonRequest （把json放在你希望的类中，就像json响应一样）
/*-------------------------example of use-------------*/ MakeXmlRequest<XmlDocument>("your_uri",result=>your_xmlDocument_variable = result,error=>your_exception_Var = error); MakeJsonRequest<classwhateveryouwant>("your_uri",result=>your_classwhateveryouwant_variable=result,error=>your_exception_Var=error) /*-------------------------------------------------------------------------------*/ public class RestService { public void MakeXmlRequest<T>(string uri, Action<XmlDocument> successAction, Action<Exception> errorAction) { XmlDocument XMLResponse = new XmlDocument(); string wufooAPIKey = ""; /*or username as well*/ string password = ""; StringBuilder url = new StringBuilder(); url.Append(uri); HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url.ToString()); string authInfo = wufooAPIKey + ":" + password; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); request.Timeout = 30000; request.KeepAlive = false; request.Headers["Authorization"] = "Basic " + authInfo; string documento = ""; MakeRequest(request,response=> documento = response, (error) => { if (errorAction != null) { errorAction(error); } } ); XMLResponse.LoadXml(documento); successAction(XMLResponse); } public void MakeJsonRequest<T>(string uri, Action<T> successAction, Action<Exception> errorAction) { string wufooAPIKey = ""; string password = ""; StringBuilder url = new StringBuilder(); url.Append(uri); HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url.ToString()); string authInfo = wufooAPIKey + ":" + password; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); request.Timeout = 30000; request.KeepAlive = false; request.Headers["Authorization"] = "Basic " + authInfo; // request.Accept = "application/json"; // request.Method = "GET"; MakeRequest( request, (response) => { if (successAction != null) { T toReturn; try { toReturn = Deserialize<T>(response); } catch (Exception ex) { errorAction(ex); return; } successAction(toReturn); } }, (error) => { if (errorAction != null) { errorAction(error); } } ); } private void MakeRequest(HttpWebRequest request, Action<string> successAction, Action<Exception> errorAction) { try{ using (var webResponse = (HttpWebResponse)request.GetResponse()) { using (var reader = new StreamReader(webResponse.GetResponseStream())) { var objText = reader.ReadToEnd(); successAction(objText); } } }catch(HttpException ex){ errorAction(ex); } } private T Deserialize<T>(string responseBody) { try { var toReturns = JsonConvert.DeserializeObject<T>(responseBody); return toReturns; } catch (Exception ex) { string errores; errores = ex.Message; } var toReturn = JsonConvert.DeserializeObject<T>(responseBody); return toReturn; } } }
