所以我在这一点上陷入困境。我正在尝试与JanRain的“auth_info”服务进行通信。事实上,首先,我只是试图获得你在浏览器中直接浏览它时得到的“错误”消息/ object /'。jsthingy':
https://rpxnow.com/api/v2/auth_info
但是我希望通过WCF调用来恢复它。
根据Fiddler的说法,该网址信息的内容类型为 text / javascript 。但是,据我所知,WCF在通过WCF调用它时没有给我这个选项。我有两个选项:WebMessageFormat.Json
或WebMessageFormat.Xml
。
我在Visual Studio中收到以下错误:
用户代码未处理InvalidOperationException - 传入消息具有意外的消息格式“原始”。操作的预期消息格式是'Xml','Json'。这可能是因为尚未在绑定上配置WebContentTypeMapper。有关更多详细信息,请参阅WebContentTypeMapper的文档。
WTF?那么WCF甚至可以做这个吗? (我怀疑会有更多的手动解决方案)
Jan Rain的在线代码示例在C#示例中有点缺乏。
他们在auth_info上的文档链接在https://rpxnow.com/docs#auth_info
他们的auth_info服务的地址在这里:
https://rpxnow.com/api/v2/auth_info
[TestMethod]
public void CallJanRain()
{
var x = new JanRainProxy("https://rpxnow.com/api/v2");
x.GetAuthInfo("", ""); //the params are apiKey, and token. not passing either at the moment as I want to be able to know how to at least handle the error first. After all, the *browser* at least got it..
}
[ServiceContract]
public interface IJanRainContract
{
[OperationContract(Name="auth_info")]
[WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Xml)]
JanRainAuthInfo GetAuthInfo(string apiKey, string token);
}
[DataContract]
public class JanRainAuthInfo
{
[DataMember(Name="identifier")]
public string Identifier { get; set; }
}
public class JanRainProxy: ClientBase<IJanRainContract>
{
public JanRainProxy(string url, WebHttpSecurityMode securityMode = WebHttpSecurityMode.Transport)
: base(ConstructEndpoint(url, securityMode))
{
}
//JanRainContract
public JanRainAuthInfo GetAuthInfo(string apiKey, string token)
{
return base.Channel.GetAuthInfo(apiKey, token);
}
// This method constructs a WebHttpBinding endpoint with all the appropriate
// settings for talking to our services.
private static ServiceEndpoint ConstructEndpoint(string serviceUri, WebHttpSecurityMode securityMode)
{
var contract = ContractDescription.GetContract(typeof(IJanRainContract));
var binding = new WebHttpBinding(securityMode);
//{
// MaxBufferPoolSize = 524288000,
// MaxReceivedMessageSize = 65536000
//};
var address = new EndpointAddress(serviceUri);
var endpoint = new ServiceEndpoint(
contract,
binding,
address);
var webHttpBehavior = new WebHttpBehavior()
{
DefaultBodyStyle = WebMessageBodyStyle.Wrapped,
DefaultOutgoingRequestFormat = WebMessageFormat.Json,
DefaultOutgoingResponseFormat = WebMessageFormat.Json,
AutomaticFormatSelectionEnabled = true,
FaultExceptionEnabled = true
};
endpoint.Behaviors.Add(webHttpBehavior);
return endpoint;
}
}
我在想,也许我应该将内容类型保留在json中并调整行为或绑定。
答案 0 :(得分:0)
好吧..看起来我需要在绑定
上添加自定义contentTypeMapper 声明我的绑定后,我添加了以下内容: WebContentTypeMapper customMapper = new JsonContentTypeMapper();
binding.ContentTypeMapper = customMapper;
这是自定义Mapper:
public class JsonContentTypeMapper : WebContentTypeMapper
{
public override WebContentFormat
GetMessageFormatForContentType(string contentType)
{
if (contentType == "text/javascript")
{
return WebContentFormat.Raw;
}
else
{
return WebContentFormat.Json;
}
}
}
答案 1 :(得分:0)
凯文,
以下是有关如何处理您可能会发现有用的auth_info响应的C#示例:
//C# Helper Class for Janrain Engage
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using System.Web;
using System.Xml;
using System.Xml.XPath;
public class Rpx
{
private string apiKey;
private string baseUrl;
public Rpx(string apiKey, string baseUrl) {
while (baseUrl.EndsWith("/"))
baseUrl = baseUrl.Substring(0, baseUrl.Length - 1);
this.apiKey = apiKey;
this.baseUrl = baseUrl;
}
public string getApiKey() { return apiKey; }
public string getBaseUrl() { return baseUrl; }
public XmlElement AuthInfo(string token) {
Dictionary<string,string> query = new Dictionary<string,string>();
query.Add("token", token);
return ApiCall("auth_info", query);
}
public List<string> Mappings(string primaryKey) {
Dictionary<string,string> query = new Dictionary<string,string>();
query.Add("primaryKey", primaryKey);
XmlElement rsp = ApiCall("mappings", query);
XmlElement oids = (XmlElement)rsp.FirstChild;
List<string> result = new List<string>();
for (int i = 0; i < oids.ChildNodes.Count; i++) {
result.Add(oids.ChildNodes[i].InnerText);
}
return result;
}
public Dictionary<string,ArrayList> AllMappings() {
Dictionary<string,string> query = new Dictionary<string,string>();
XmlElement rsp = ApiCall("all_mappings", query);
Dictionary<string,ArrayList> result = new Dictionary<string,ArrayList>();
XPathNavigator nav = rsp.CreateNavigator();
XPathNodeIterator mappings = (XPathNodeIterator) nav.Evaluate("/rsp/mappings/mapping");
foreach (XPathNavigator m in mappings) {
string remote_key = GetContents("./primaryKey/text()", m);
XPathNodeIterator ident_nodes = (XPathNodeIterator) m.Evaluate("./identifiers/identifier");
ArrayList identifiers = new ArrayList();
foreach (XPathNavigator i in ident_nodes) {
identifiers.Add(i.ToString());
}
result.Add(remote_key, identifiers);
}
return result;
}
private string GetContents(string xpath_expr, XPathNavigator nav) {
XPathNodeIterator rk_nodes = (XPathNodeIterator) nav.Evaluate(xpath_expr);
while (rk_nodes.MoveNext()) {
return rk_nodes.Current.ToString();
}
return null;
}
public void Map(string identifier, string primaryKey) {
Dictionary<string,string> query = new Dictionary<string,string>();
query.Add("identifier", identifier);
query.Add("primaryKey", primaryKey);
ApiCall("map", query);
}
public void Unmap(string identifier, string primaryKey) {
Dictionary<string,string> query = new Dictionary<string,string>();
query.Add("identifier", identifier);
query.Add("primaryKey", primaryKey);
ApiCall("unmap", query);
}
private XmlElement ApiCall(string methodName, Dictionary<string,string> partialQuery) {
Dictionary<string,string> query = new Dictionary<string,string>(partialQuery);
query.Add("format", "xml");
query.Add("apiKey", apiKey);
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<string, string> e in query) {
if (sb.Length > 0) {
sb.Append('&');
}
sb.Append(System.Web.HttpUtility.UrlEncode(e.Key, Encoding.UTF8));
sb.Append('=');
sb.Append(HttpUtility.UrlEncode(e.Value, Encoding.UTF8));
}
string data = sb.ToString();
Uri url = new Uri(baseUrl + "/api/v2/" + methodName);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
// Write the request
StreamWriter stOut = new StreamWriter(request.GetRequestStream(),
Encoding.ASCII);
stOut.Write(data);
stOut.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream ();
XmlDocument doc = new XmlDocument();
doc.PreserveWhitespace = false;
doc.Load(dataStream);
XmlElement resp = doc.DocumentElement;
if (resp == null || !resp.GetAttribute("stat").Equals("ok")) {
throw new Exception("Unexpected API error");
}
return resp;
}
public static void Main(string[] args) {
Rpx r = new Rpx(args[0], args[1]);
if (args[2].Equals("mappings")) {
Console.WriteLine("Mappings for " + args[3] + ":");
foreach(string s in r.Mappings(args[3])) {
Console.WriteLine(s);
}
}
if (args[2].Equals("all_mappings")) {
Console.WriteLine("All mappings:");
foreach (KeyValuePair<string, ArrayList> pair in r.AllMappings()) {
Console.WriteLine(pair.Key + ":");
foreach (string identifier in pair.Value) {
Console.WriteLine(" " + identifier);
}
}
}
if (args[2].Equals("map")) {
Console.WriteLine(args[3] + " mapped to " + args[4]);
r.Map(args[3], args[4]);
}
if (args[2].Equals("unmap")) {
Console.WriteLine(args[3] + " unmapped from " + args[4]);
r.Unmap(args[3], args[4]);
}
}
}
代码来源:https://github.com/janrain/Janrain-Sample-Code/blob/master/c-sharp/csharp-helper-class.cs