C# 向标头添加授权
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Adding authorization to the headers
提问by Jimmyt1988
I have the following code:
我有以下代码：
...
AuthenticationHeaderValue authHeaders = new AuthenticationHeaderValue("OAuth2", Contract.AccessToken);
string result = await PostRequest.AuthenticatedGetData(fullUrl, null, authHeaders);
return result;
...
public static async Task<string> AuthenticatedGetData(string url, FormUrlEncodedContent data, AuthenticationHeaderValue authValue)
{
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(authValue.Parameter);
HttpResponseMessage response = await client.PostAsync(new Uri(url), data);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
return responseBody;
}
The response = await part just continues an ongoing loop and nothing happens. Any ideas what I am doing wrong?
response = await 部分只是继续一个持续的循环，什么也没有发生。任何想法我做错了什么？
The question really is, how do I send the following header:
真正的问题是，我如何发送以下标头：
Authorization: OAuth2 ACCESS_TOKEN
to an external web api
到外部 web api
采纳答案by Alaa Masoud
This line
这条线
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue(authValue.Parameter);
Will produce this header value
将产生这个标题值
Authorization: ACCESS_TOKEN
Where ACCESS_TOKENis the value of authValue.Parameter. You want to assign the value you passed instead to get the required header
ACCESS_TOKEN的值在哪里authValue.Parameter。您想分配您传递的值以获取所需的标头
client.DefaultRequestHeaders.Authorization = authValue;
Will produce
会产生
Authorization: OAuth2 ACCESS_TOKEN
回答by John
I struggled with this. I kept getting an error saying "invalid format" because I have a custom implementation and the Authorization header is validated against certain standards. Adding the header this way however worked:
我为此苦苦挣扎。我一直收到一条错误消息，说“格式无效”，因为我有一个自定义实现，并且根据某些标准验证了 Authorization 标头。但是，以这种方式添加标题有效：
var http = new HttpClient();
http.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", "key=XXX");
回答by Yogurt The Wise
Had a similar issue when getting AuthenticationHeaderValue to work with my requests. I was also using JWT JsonWebToken from GitHub. I was able to get a token from the API, but was struggling to use it in other GETs and POSTs.
在让 AuthenticationHeaderValue 处理我的请求时遇到了类似的问题。我还使用了来自 GitHub 的 JWT JsonWebToken。我能够从 API 获取令牌，但在其他 GET 和 POST 中难以使用它。
var jwt = JsonWebToken.Encode(token, APISECRET, JwtHashAlgorithm.HS256);
var tk = GetTokenFromApi(); // basically returns an encrypted string.
Manually using WebRequest: Which worked fine.
手动使用 WebRequest：效果很好。
request.ContentType = "application/json";
request.Method = "POST";
request.Headers.Set("Authorization", string.Format("Bearer {0}", tk));
When we switched to an HttpClient, and used the AuthenticationHeaderValue, could not figure out how to set it up correctly.After looking at the request string, i saw it added the "Authorization" for me. Played around with parameters, and this finally this worked.
当我们切换到一个HttpClient，并使用AuthenticationHeaderValue 时，无法弄清楚如何正确设置它。查看请求字符串后，我看到它为我添加了“授权”。玩弄参数，这终于奏效了。
var authenticationHeaderValue = new AuthenticationHeaderValue("Bearer", tk);
回答by Nico
Maybe intresting for other people. Since I searched on this for a long time. But you have to save your cookies also and give it with your next request. First this is how i got my authentication code and hold my cookies in a static variable (in the first time i call this method I give an empty value to token).
也许对其他人很感兴趣。因为我在这方面搜索了很长时间。但是您也必须保存您的 cookie，并在您的下一个请求中提供它。首先，这是我如何获取我的身份验证代码并将我的 cookie 保存在一个静态变量中（在我第一次调用此方法时，我为令牌提供了一个空值）。
public static CookieContainer CookieContainer;
public static async Task<string> Post<TRequest>( TRequest requestBody, string path, string token = "")
{
var baseUrl = new Uri($"urlFromApi");
CookieContainer = new CookieContainer();
using (var handler = new HttpClientHandler() { CookieContainer = CookieContainer })
using(var client = new HttpClient(handler){BaseAddress = baseUrl})
{
client.DefaultRequestHeaders.ConnectionClose = false;
if (!string.IsNullOrWhiteSpace(token))
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", $"{token}");
}
ServicePointManager.FindServicePoint(client.BaseAddress).ConnectionLeaseTimeout = 60 * 1000; //1 minute using (var content = new ByteArrayContent(GetByteData(requestBody)))
using (var content = new ByteArrayContent(GetByteData(requestBody)))
{
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = await client.PostAsync(String.Empty, content);
return await GetResponseContent(response);
}
}
}
After this if I do any request to the api I include the cookies (token is what you get from the first response as a result) public static async Task Get(string path, string token = "") {
在此之后，如果我对 api 执行任何请求，我将包含 cookie（令牌是您从第一个响应中获得的结果） public static async Task Get(string path, string token = "") {
var baseUrl = $"https://innoviris-ai.collibra.com/rest/2.0{path}";
using (var handler = new HttpClientHandler() { CookieContainer = CookieContainer })
using (var client = new HttpClient(handler) {BaseAddress = new Uri(baseUrl)})
{
client.DefaultRequestHeaders.ConnectionClose = false;
if (!string.IsNullOrWhiteSpace(token))
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", $"{token}");
}
ServicePointManager.FindServicePoint(client.BaseAddress).ConnectionLeaseTimeout = 60 * 1000; //1 minute
var response = await client.GetAsync(String.Empty);
return await GetResponseContent(response);
}
}
