I have created a WCF POST service with below mentioned signature. This is hosted successfully in IIS and I can see it in the service's help page as:
[OperationContract]
[WebInvoke(BodyStyle = WebMessageBodyStyle.Wrapped,
RequestFormat = WebMessageFormat.Xml,
ResponseFormat = WebMessageFormat.Xml,
Method = "POST",
UriTemplate = "TestMethod/{lang}/{str}/{selectedstring}/")]
string TestMethod(string lang, string str, string selectedstring, string mylist, int testval);
On the service's help page the method shows correctly as
TestMethod/{lang}/{str}/{selectedstring}/ || POST || Service at http://localhost:86/MyRestService.svc/TestMethod/{LANG}/{STR}/{SELECTEDSTRING}/
I am trying to call this service using fiddler with below mentioned options (Based on a few look up on blogs):
Method: Post
URL - 'http://servername:86/MyRestService.svc/TestMethod/en-us/str1/qad11/'
Req. Headers:
User-Agent: Fiddler
Host: servername:86
Content-Type: application/xml
Request Body:
<TestMethod xmlns="http://tempuri.org/"><mylist>string val</mylist><testval>3</testval></TestMethod>
However it always gives me an HTTP result code 411 (Length Required), the same error when I try to call the service from my .net test stub.
Fiddler should calculate the HTTP header named Content-Length for you (at least it does for v2.3.9.3) Check in the raw tab of the request for something like: Content-Length: nnn where nnn is the string length of the request body. If not, then you'll need to add it yourself. Also, you could try a browser plug-in like the POSTMan chrome plug to create your requests.
Related
I have a wcf service hosted on IIS.
Almost all the documents say that to enable cors, you should handle the OPTIONS VERB. (Pre-Flight Requests)
I have a method whose signatures are :
[OperationContract]
[FaultContract(typeof(ExceptionManager))]
[WebInvoke(Method = "POST",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.WrappedRequest,
UriTemplate = "PostLog")]
string PostLog(List<LoginEntry> LoginLog);
I have created an attribute deriving from IServiceBehavior & hooked up this Class to my service & handled BeforeSendReply method to add Acces Control methods as :
public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
var httpHeader = reply.Properties["httpResponse"] as HttpResponseMessageProperty;
httpHeader.Headers.Add("Access-Control-Allow-Origin", "*");
httpHeader.Headers.Add("Access-Control-Request-Method", "POST,GET,PUT,DELETE,OPTIONS");
httpHeader.Headers.Add("Access-Control-Allow-Headers", "X-Requested-With,Content-Type");
}
This did not help me when i created a testcall in firefox. So i took it out from here & added this in Global.asax file as
protected void Application_BeginRequest(object sender, EventArgs e)
{
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.Cache.SetNoStore();
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
{
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS");
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Authorization, Accept");
HttpContext.Current.Response.AddHeader("Access-Control-Max-Age", "1728000");
HttpContext.Current.Response.End();
}
}
I could see in firefox 403 Error & my headers not being present.
so i went ahead & put those headers in IIS settings (Custom headers Tab). (I took the risk of sending those in each response).
Now i can see those headers in response in firefox, but I am still getting 403 Error.
This is the response header :
HTTP/1.1 403 Forbidden
Connection: Keep-Alive
Content-Length: 1758
Date: Thu, 05 Mar 2015 14:47:25 GMT
Content-Type: text/html
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Headers: Content-Type, Authorization, Accept
I also tried Changing to Method="*" in WebInvoke. but still could not get it to work.
Thanks in Advance..
So finally Got it to Work.
This post helped me out.
enabling cross-origin resource sharing on IIS7
Turns out that the problem was in IIS 6 Site settings.
Solved it by the following steps :
In IIS, Select Site -> RightClick (Properties) ->
Under the Directory Tab Select Configuration Button.
Under the Mappings Tab. Search for Extension (.svc)
Click on Edit. Search for Label "Limit Verbs To".
Previous Value was "GET,HEAD,POST,DEBUG"
Replaced It With "GET,HEAD,POST,DEBUG,OPTIONS"
Also, I removed all those headers configs from IIS (coz I was already managing them Global.asax).
I have been struggling with this the past few days. I have researched the issue and tried the solutions posted. However it has not worked. I have REST WCF Post method that has
[OperationContract(Name = "ImportRawJson")]
WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest,
ResponseFormat = WebMessageFormat.Json, RequestFormat=WebMessageFormat.Json,
UriTemplate = "ImportRawJson/username/{username}/password/{password}/fileName/{fileName}")]
string ImportRawJson(string username, string password, string fileName, string jsonStream);
I am able to consume this through web client. However when I try calling through Fiddler like below the body parameter always results in null and I get an exception.
Fiddler :
Post http://localhost/TimesheetService/Timesheet.svc/ImportRawJson/username/user/password/pwd/fileName/testfiddler
Request Headers:
User-Agent: Fiddler
Host: localhost
Content-Length: 32
Content-Type: application/json; charset=utf-8
Request Body:
{ "jsonStream":{ "ImportRaw": {"TestXml": {"xml": "test" } }}}
Error:
HTTP/1.1 400 Bad Request
Cache-Control: private
Content-Length: 127
Content-Type: application/json; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
Set-Cookie: ASP.NET_SessionId=wh4qxcu1x0vmiv45mmzuuaup; path=/; HttpOnly
X-Powered-By: ASP.NET
Date: Tue, 07 May 2013 14:00:58 GMT
{"ErrorCode":"Error","Message":"Procedure or function expects parameter 'jsonStream', which was not supplied."}
Any help as to how I can pass the body parameter. I truly appreciate. I am stuck at this point. Please help!! Thanks in advance
There are a couple of issues in your code. First, if by "JSON stream" you mean any JSON document, you won't be able to use the type string for your code. Instead, you'll need to take it as a Stream (which can basically accept any arbitrary input). If you take the input as a string, you should pass a JSON string to it. And since you set the body type to WrappedRequest, you need to wrap the JSON string in an object, with the parameter name being the member name, and the value you want to pass to your function the value. For example, to pass the string hello world to your operation, you'd need to pass this request body:
{"jsonStream":"hello world"}
But if I guessed correctly, and you want to take any arbitrary JSON, you need to go with the Stream parameter. The blog post at http://blogs.msdn.com/b/carlosfigueira/archive/2008/04/17/wcf-raw-programming-model-receiving-arbitrary-data.aspx has more information about how to implement it.
have created simple Restful service for log in verification. Following are my interface and class definitions.
Interface IDemo:
public interface IDemo
{
[OperationContract]
[WebInvoke(RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "/ValidateUser?Username={UserName}&Password={Password}",
Method = "POST")]
string ValidateUser(string Username, string Password);
}
Class Demo :
public class Demo:IDemo
{
public string ValidateUser(string Username, string Password)
{
Users objUser = new Users();
objUser.UserID = Username;
objUser.Password = Password;
string Msg = LoginDataService.ValidateUser(Username, Password);
return Msg;
}
}
localhost:49922/Demo.svc/ValidateUser?Username=demo&Password=demo (with http:\)
When I try to parse the above URL under the Post Method in Fiddler2 I got Bad Request HTTP400 error.
Can anyone help me what is wrong in my code.
Thanks & Regards,
Vijay
Your URI template looks like you are sending the parameters in the URL. But when you use POST the parameters are sent in the http body.
Note you should not send the username and passord in the url as it can be logged.
For the above REST method the POST from Fiddler needs to be as shown below:
POST http://localhost/Sample/Sample.svc/ValidateUser?Username=demo&Password=demo HTTP/1.1
User-Agent: Fiddler
Content-Type: application/json
Host: rajeshwin7
Content-Length: 0
Doing so i get back a 200 OK HTTP Status as shown below:
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 44
Content-Type: application/json; charset=utf-8
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Thu, 14 Jun 2012 15:35:28 GMT
"Server returns username demo with password demo"
probably something i doing wrong, but i am returning XML from my WCF Rest service which is built with VS 2010. In fiddler you can see here that it returns test/html as the content-type
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 222
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 16 Aug 2010 20:49:55 GMT
So i went ahead and added the following on the webget attribute on my method but it still returns text/html ... I presume that i should return the content type of text/xml because i am in fact returning XML?
Heres my method, i added the ResponseFormat to the attribute... I wasn't sure if i needed bodystyle (i have no idea what it does but saw it in an example :-) )
[WebGet(UriTemplate = "", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Xml)]
public List<SampleItem> GetCollection()
{
// TODO: Replace the current implementation to return a collection of SampleItem instances
return new List<SampleItem>() { new SampleItem() { Id = 1, StringValue = "Hello" } };
}
anyway after the change and rebuilding of the project it still returns the wrong content type ... am i missign somthing?
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 222
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 16 Aug 2010 20:54:15 GMT
EDIT
Ok i got a working solution but the attribute method has NO EFFECT, very strange...but if i put this
WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
Now i check fiddler and the content-type is actually text/xml.
But i need to put this in every method and the attribute method seems to have no effect.
Anybody know why?
According to this the Firefox request headers has a higher priority for text/html than text/xml, resulting in WCF service methods decorated with xml or json returning with the "wrong" response, although I can imagine it is the correct behavior.
You can force a response content type by explicitly setting
WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
or equivalent. I guess this is the only alternative if you truly want to force a specific content type response for all browsers/clients.
See e.g.
WCF ResponseFormat For WebGet
I think you want e.g.
OutgoingWebResponseContext context =
WebOperationContext.Current.OutgoingResponse;
context.ContentType = "image/jpeg";
ResponseFormat controls something else.
Old post, but here is what I found on MSDN's Blog Getting Started with WCF WebHttp Services in .NET 4:
Your project has to use the Full .NET 4 Framework, not the Client Profile.
Once I did that, and restarted the project, I was able to add System.ServiceModel.Web from the list of References.
I hope this helps someone.
I've been banging my head against the wall for the past couple of hours, here's what we're trying to do: a method expects a primitive/simple type as the request body. Originally we tried with a boolean, but that didn't work so we tried with string and object. Same thing.
Here's the server-side code
[OperationContract]
[WebInvoke(UriTemplate = "/foo/{foo_id}/bar", Method = "POST", ResponseFormat=WebMessageFormat.JSON)]
string G(string foo_id, string content);
And here's the request in Fiddler:
Header:
User-Agent: Fiddler
Host: localhost
Content-Type: 'application/json',
Content-Length: 19
Body:
"hello_world"
We tried to wrap "hello_world" in a json object, like {"content":"hello_world"} but no luck.
Any thoughts?
Works fine for me, here's my code:
[OperationContract]
[WebInvoke(UriTemplate = "/foo/{foo_id}/bar", Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
public string G(string foo_id, string content)
{
return content + foo_id;
}
You didn't set the request format (a pain I know :))
Here's my Fiddler request:
User-Agent: Fiddler
Content-Type: application/json
Host: localhost:54287
Content-Length: 7
"Hello"