我已经完成了使用基本身份验证创建http帖子的任务。 我在asp.net MVC应用程序中使用C＃进行开发。
我也得到了这个例子。
{
POST /v2/token_endpoint HTTP/1.1
Authorization: Basic Y2xpZW50X2lkOmNsaWVudF9zZWNyZXQ=
Accept: application/json
Content-Type: application/x-www-form-urlencoded
User-Agent: Java/1.6.0_33
Host: api.freeagent.com
Connection: close
Content-Length: 127
grant_type=authorization_code&code=12P3AsFZXwXjd7SLOE1dsaX8oCgix&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Foauth
}
我的问题是我如何在C＃中编码？ 如果需要更多信息，请提前致谢
编辑：我已取得一些进展，但我没有添加grant_type
public void AccessToken(string code)
{
string url = @"https://api.freeagent.com/v2/token_endpoint";
WebClient client = new WebClient();
string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(ApiKey + ":" + ApiSecret));
client.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
client.Headers[HttpRequestHeader.Accept] = "application/json";
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
client.Headers[HttpRequestHeader.UserAgent] = "Java/1.6.0_33";
client.Headers[HttpRequestHeader.Host] = "api.freeagent.com";
client.Headers[HttpRequestHeader.Connection] = "close";
client.Headers["grant_type"] = "authorization_code";
var result = client.DownloadString(url);
}
那么我如何添加：grant_type = authorization_code＆amp; code = 12P3AsFZXwXjd7SLOE1dsaX8oCgix＆amp; redirect_uri = http％3A％2F％2Flocalhost％3A8080％2Foauth到帖子？
答案 0 :(得分：2)
您可以在此处找到两个示例，了解如何使用WebRequest和WebClient类进行基本身份验证请求：
http://grahamrhay.wordpress.com/2011/08/22/making-a-post-request-in-c-with-basic-authentication/ http://anishshenoy57.wordpress.com/2013/01/22/basic-http-authentication-using-c/
基本上是基本的身份验证它只是Base64(username:password)，因此很容易实现它。
<强> UPDATE1
以下是基于您的方法的示例：
public void AccessToken(string code)
{
string url = @"https://api.freeagent.com/v2/token_endpoint";
WebClient client = new WebClient();
string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(ApiKey + ":" + ApiSecret));
client.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
client.Headers[HttpRequestHeader.Accept] = "application/json";
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
client.Headers[HttpRequestHeader.UserAgent] = "Java/1.6.0_33";
client.Headers[HttpRequestHeader.Host] = "api.freeagent.com";
client.Headers[HttpRequestHeader.Connection] = "close";
client.Headers["grant_type"] = "authorization_code";
string data = string.Format(
"grant_type=authorization_code&code={0}&redirect_uri=http%3A%2F%2Flocalhost%3A8080",
code);
var result = client.UploadString(url, data);
}
WebClient中调用方法的唯一不同之处。 DownloadString将执行GET请求，但对于POST，您需要使用UploadString方法
答案 1 :(得分：0)
我也一直在努力，但我现在已经把它带到了另一边！
最让我感到满意的是，如果您在Auth Token请求中指定了重定向网址，则还必须在访问令牌请求中使用相同的网址指定它，即使它是没用过。
我开始使用某些部分包装器，并且几乎无法识别它。希望这个包装器（包含auth和访问令牌代码）将帮助其他人。到目前为止，我只使用它来创建发票和发票项目，其他功能未经测试，但它应该为您提供令牌，并且可以调试请求。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Web.Script.Serialization;
namespace ClientZone.External
{
public class FreeAgent
{
public enum Methods
{
POST = 1,
PUT
}
public enum Status
{
Draft = 1,
Sent,
Cancelled
}
private string _subDomain;
private string _identifier;
private string _secret;
private string _redirectURI;
public static string AuthToken = "";
private static string _accessToken = "";
private static string _refreshToken = "";
private static DateTime _refreshTime;
public FreeAgent(string identifier, string secret, string subdomain, string redirectURI)
{
_subDomain = subdomain;
_identifier = identifier;
_secret = secret;
_redirectURI = redirectURI; // If this was specified in the Auth Token call, you must specify it here, and it must be the same
}
public bool GetAccessToken()
{
try
{
string url = @"https://api.freeagent.com/v2/token_endpoint";
WebClient client = new WebClient();
string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(_identifier + ":" + _secret));
client.Headers[HttpRequestHeader.Host] = "api.freeagent.com";
client.Headers[HttpRequestHeader.KeepAlive] = "true";
client.Headers[HttpRequestHeader.Accept] = "application/json";
client.Headers[HttpRequestHeader.UserAgent] = "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36";
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded;charset=UTF-8";
client.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
System.Net.ServicePointManager.Expect100Continue = false;
client.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate";
client.Headers[HttpRequestHeader.AcceptLanguage] = "en-US,en;q=0.8";
var result = "";
if (!(_accessToken == "" && _refreshToken != ""))
{
string data = string.Format("grant_type=authorization_code&code={0}&redirect_uri={1}", AuthToken, _redirectURI);
result = client.UploadString(url, data);
}
else
{
// Marking the access token as blank and the refresh token as not blank
// is a sign we need to get a refresh token
string data = string.Format("grant_type=refresh_token&refresh_token={0}", _refreshToken);
result = client.UploadString(url, data);
}
JavaScriptSerializer json_serializer = new JavaScriptSerializer();
var results_list = (IDictionary<string, object>)json_serializer.DeserializeObject(result);
_accessToken = results_list["access_token"].ToString();
int secondsUntilRefresh = Int32.Parse(results_list["expires_in"].ToString());
_refreshTime = DateTime.Now.AddSeconds(secondsUntilRefresh);
if (results_list.Any(x => x.Key == "refresh_token"))
{
_refreshToken = results_list["refresh_token"].ToString();
}
if (_accessToken == "" || _refreshToken == "" || _refreshTime == new DateTime())
{
return false;
}
}
catch
{
return false;
}
return true;
}
private HttpStatusCode SendWebRequest(Methods method, string URN, string request, out string ResponseData)
{
if (_accessToken == "")
{
// The access token has not been retrieved yet
GetAccessToken();
}
else
{
if (_refreshTime != new DateTime() && _refreshTime < DateTime.Now) {
// The token has expired and we need to refresh it
_accessToken = "";
GetAccessToken();
}
}
if (_accessToken != "")
{
try
{
WebClient client = new WebClient();
string url = "https://api.freeagentcentral.com/v2/" + URN;
client.Headers[HttpRequestHeader.UserAgent] = "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36";
client.Headers[HttpRequestHeader.Authorization] = "Bearer " + _accessToken;
client.Headers[HttpRequestHeader.ContentType] = "application/json";
client.Headers[HttpRequestHeader.Accept] = "application/json";
if (method == Methods.POST || method == Methods.PUT)
{
string data = request;
var result = client.UploadString(url, method.ToString(), data);
ResponseData = result;
return HttpStatusCode.Created;
}
else
{
var result = client.DownloadString(url);
ResponseData = result;
return HttpStatusCode.OK;
}
}
catch (WebException e)
{
if (e.GetType().Name == "WebException")
{
WebException we = (WebException)e;
HttpWebResponse response = (System.Net.HttpWebResponse)we.Response;
ResponseData = response.StatusDescription;
return response.StatusCode;
}
else
{
ResponseData = e.Message;
if (e.InnerException != null)
{
ResponseData = ResponseData + " - " + e.InnerException.ToString();
}
return HttpStatusCode.SeeOther;
}
}
}
else
{
ResponseData = "Access Token could not be retrieved";
return HttpStatusCode.SeeOther;
}
}
private int ExtractNewID(string resp, string URN)
{
if (resp != null && resp.Trim() != "")
{
JavaScriptSerializer json_serializer = new JavaScriptSerializer();
var results_list = (IDictionary<string, object>)json_serializer.DeserializeObject(resp);
if (results_list.Any(x => x.Key == "invoice"))
{
var returnInvoice = (IDictionary<string, object>)results_list["invoice"];
if (returnInvoice["created_at"].ToString() != "")
{
string returnURL = returnInvoice["url"].ToString();
if (returnURL.Contains("http"))
{
return int.Parse(returnURL.Remove(0, ("https://api.freeagentcentral.com/v2/" + URN).Length + 1));
}
else
{
return int.Parse(returnURL.Remove(0, URN.Length + 2));
}
}
}
}
return -1;
}
public int CreateContact(string firstName, string lastName, string emailAddress, string street, string city, string state, string postcode, string country)
{
StringBuilder request = new StringBuilder();
request.Append("{\"contact\":{");
request.Append("\"first-name\":");
request.Append(firstName);
request.Append("\",");
request.Append("\"last-name\":");
request.Append(lastName);
request.Append("\",");
request.Append("\"email\":");
request.Append(emailAddress);
request.Append("\",");
request.Append("\"address1\":");
request.Append(street);
request.Append("\",");
request.Append("\"town\":");
request.Append(city);
request.Append("\",");
request.Append("\"region\":");
request.Append(state);
request.Append("\",");
request.Append("\"postcode\":");
request.Append(postcode);
request.Append("\",");
request.Append("\"country\":");
request.Append(country);
request.Append("\"");
request.Append("}");
string returnData = string.Empty;
HttpStatusCode responseCode = SendWebRequest(Methods.POST, "contacts", request.ToString(), out returnData);
if (responseCode == HttpStatusCode.OK || responseCode == HttpStatusCode.Created)
{
return ExtractNewID(returnData, "contacts");
}
else
{
return -1;
}
}
public int CreateInvoice(int contactID, DateTime invoiceDate, int terms, string reference, string comments, string currency = "GBP")
{
StringBuilder request = new StringBuilder();
request.Append("{\"invoice\":{");
request.Append("\"dated_on\": \"");
request.Append(invoiceDate.ToString("yyyy-MM-ddTHH:mm:00Z"));
request.Append("\",");
if (!string.IsNullOrEmpty(reference))
{
request.Append("\"reference\": \"");
request.Append(reference);
request.Append("\",");
}
if (!string.IsNullOrEmpty(comments))
{
request.Append("\"comments\": \"");
request.Append(comments);
request.Append("\",");
}
request.Append("\"payment_terms_in_days\": \"");
request.Append(terms);
request.Append("\",");
request.Append("\"contact\": \"");
request.Append(contactID);
request.Append("\",");
if (currency == "EUR")
{
request.Append("\"ec_status\": \"");
request.Append("EC Services");
request.Append("\",");
}
request.Append("\"currency\": \"");
request.Append(currency);
request.Append("\"");
request.Append("}}");
string returnData = string.Empty;
HttpStatusCode responseCode = SendWebRequest(Methods.POST, "invoices", request.ToString(), out returnData);
if (responseCode == HttpStatusCode.OK || responseCode == HttpStatusCode.Created)
{
return ExtractNewID(returnData, "invoices");
}
else
{
return -1;
}
}
public bool ChangeInvoiceStatus(int invoiceID, Status status)
{
string returnData = string.Empty;
HttpStatusCode resp = SendWebRequest(Methods.PUT, "invoices/" + invoiceID.ToString() + "/transitions/mark_as_" + status.ToString().ToLower(), string.Empty, out returnData);
return false;
}
public int CreateInvoiceItem(int invoiceID, string itemType, float price, int quantity, float taxRate, string description)
{
StringBuilder request = new StringBuilder();
request.Append("{\"invoice\":{");
request.Append("\"invoice_items\":[{");
request.Append("\"item_type\": \"");
request.Append(itemType);
request.Append("\",");
request.Append("\"price\": \"");
request.Append(price.ToString("0.00"));
request.Append("\",");
request.Append("\"quantity\": \"");
request.Append(quantity);
request.Append("\",");
request.Append("\"sales_tax_rate\": \"");
request.Append(taxRate.ToString("0.00"));
request.Append("\",");
request.Append("\"description\": \"");
request.Append(description);
request.Append("\"");
request.Append("}]");
request.Append("}");
request.Append("}");
string returnData = string.Empty;
HttpStatusCode responseCode = SendWebRequest(Methods.PUT, "invoices/" + invoiceID.ToString(), request.ToString(), out returnData);
if (responseCode == HttpStatusCode.OK || responseCode == HttpStatusCode.Created)
{
// Invoice items is an update call to an invoice, so we just get a 200 OK with no response body to extract an ID from
return 0;
}
else
{
return -1;
}
}
}
}
要在MVC设置中使用它，您需要在索引中检测登录是否必要。如果是，你告诉FreeAgent回到另一个ActionResult（我使用过Auth）来捕获重定向并存储代码。
public ActionResult Index()
{
if (MyNamespace.External.FreeAgent.AuthToken == "")
{
return Redirect("https://api.freeagent.com/v2/approve_app?redirect_uri=" + Request.Url.Scheme + "://" + Request.Url.Authority + "/Invoice/Auth" + "&response_type=code&client_id=1234567890123456789012");
}
else
{
return View();
}
}
public ActionResult Auth()
{
if (Request.Params.Get("code").ToString() != "")
{
ClientZone.External.FreeAgent.AuthToken = Request.Params.Get("code").ToString();
}
return View("Index");
}
然后使用所需的功能
MyNameSpace.External.FreeAgent FA = new ClientZone.External.FreeAgent("abcdefghhijklmnopqrstu", "1234567890123456789012", "acme", "http://localhost:52404/Invoice/Auth");
int newID = FA.CreateInvoice(54321, InvoiceDate, 30, "", "", "GBP");
if (newID != -1)
{
FA.CreateInvoiceItem(newID, unit, rate, quantity, number, description);
}
CreateInvoice中有一些英国/欧盟特定的编码。我不确定这是多么自定义或标准，但我已将其保留，因为删除它比重新创建它更容易。