I have to call a WCF service. The WCF service is on and I can edit its configuration.
I want to create a client that calls the service. I cannot add the service reference to my client, so I am trying to call it with a HttpClient.
The client side code:
using (var client = new HttpClient())
{
//soapString is my input class serialized
var content = new StringContent(soapString, Encoding.UTF8, "text/xml");
using (var postResponse = client.PostAsync("http://localhost:52937/Attempts.svc/", content).Result)
{
string postResult = postResponse.Content.ReadAsStringAsync().Result;
}
}
The server side code:
[ServiceContract]
public interface IAttempts
{
[OperationContract]
void ReceiveAttemptResult(ReceiveAttemptResultInput result);
}
public class Attempts : IAttempts
{
string _backendUrl;
public void ReceiveAttemptResult(ReceiveAttemptResultInput result)
{
//...
}
}
And in the end the web.config server side:
<system.serviceModel>
<services>
<service name="it.MC.Listeners.Attempts">
<endpoint address="" contract="it.MC.Listeners.IAttempts" binding="basicHttpBinding"/>
<endpoint address="mex" contract="IMetadataExchange" binding="mexHttpBinding"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
When I call the service, I just obtain an empty string and I cannot stop in debug inside the service... What's wrong?
Thank you
Just in case this bedevils anyone else. Thank you #Disappointed for your missing piece of the puzzle, it prompted me to run the thing in WCF Test Client with Fiddler open to see what I was missing:
HttpClient httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("SOAPAction", "http://tempuri.org/IMyService/Mymethod_Async");
string soapEnvelope = "<s:Envelope xmlns:s= \"http://schemas.xmlsoap.org/soap/envelope/\"><s:Body><Mymethod_Async xmlns=\"http://tempuri.org/\"/></s:Body></s:Envelope>";
var content = new StringContent(soapEnvelope, Encoding.UTF8, "text/xml");
HttpResponseMessage hrm = httpClient.PostAsync("http://MyService.MyDomain.com/MyService.svc", content).Result;
Related
I have a WCF Service with a SOAP endpoint. I added a REST endpoint and the Get methods are working just fine. I am having trouble with a POST method which takes in an object and returns a different object. When I pass in my object, I get this error back:
"Message":"Object reference not set to an instance of an object."
Here's the code to call the service:
string URL = "http://qa.acct.webservice";
HttpClient client = new HttpClient();
client.BaseAddress = new Uri(URL);
// Add an Accept header for JSON format.
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
// HTTP POST
var request = new RequestGetInventory
{
BrandIDs = new string[] { "4", "42" },
AccountID = "9900003"
};
var resp = client.PostAsJsonAsync("/AxaptaService.svc/rest/GetInventory", request);
response = resp.Result;
if (response.IsSuccessStatusCode)
{
var temp = response.Content.ReadAsStringAsync().Result;
MessageBox.Show(temp); //error message received here.
}
The RequestGetInventory object is defined as follows:
[DataContract]
public class RequestGetInventory
{
[DataMember]
public string[] BrandIDs { get; set; }
[DataMember]
public string AccountID { get; set; }
}
The contract for the webservice is defined as follows:
[OperationContract]
[WebInvoke(Method = "POST",
RequestFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.WrappedRequest,
ResponseFormat = WebMessageFormat.Json)]
ResponseGetInventory GetInventory(RequestGetInventory Request);
I tried playing around with the WebInvoke parameters, but received the same error message for all viable attempts.
And this is how my web.config is set up:
<system.serviceModel>
<services>
<service behaviorConfiguration="" name="Proj.AxaptaUS.WebService.AxaptaService">
<endpoint address="rest" behaviorConfiguration="webBehavior" binding="webHttpBinding" contract="Proj.Interfaces.Axapta3.IAxaptaService"></endpoint>
<endpoint address="" binding="basicHttpBinding" contract="Proj.Interfaces.Axapta3.IAxaptaService"></endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="webBehavior">
<webHttp helpEnabled="true" />
<enableWebScript/>
</behavior>
</endpointBehaviors>
</behaviors>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
I am not entirely sure what I'm doing wrong because I can access this using SOAP just fine. It seems like it is not getting any values for the object which I passed in, thus causing the object reference error.
Any help would be greatly appreciated! Thanks!
#jstreet posted a comment which ended up working.
I changed BodyStyle = WebMessageBodyStyle.WrappedRequest to BodyStyle = WebMessageBodyStyle.Bare and removed <enableWebScript/> from config file.
After doing those things, it started to work correctly! thanks #jstreet!
I wanna upload a file to db by web Service (REST - WCF) but I have WebException (400) bad request, I read many solution but my code still not working!
.config
<system.serviceModel>
<bindings>
<webHttpBinding>
<!--Limits to 10MB-->
<binding name="ApiQuotaBinding"
maxReceivedMessageSize="1048576000"
maxBufferPoolSize="1048576000"
maxBufferSize="1048576000"
closeTimeout="00:03:00"
openTimeout="00:03:00"
receiveTimeout="00:03:00"
sendTimeout="00:03:00"
>
<readerQuotas maxDepth="32"
maxStringContentLength="104857600"
maxArrayLength="1048576000"
maxBytesPerRead="1048576000"
/>
<security mode="None" />
</binding>
</webHttpBinding>
</bindings>
<services>
<service name="TransferService">
<endpoint address=""
binding="webHttpBinding"
bindingConfiguration="ApiQuotaBinding"
contract="ITransferService"
behaviorConfiguration="webHttpBehavior"/>
<endpoint address="mex"
contract="IMetadataExchange"
binding="mexHttpBinding"/>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="webHttpBehavior">
<webHttp/>
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior >
<!--To avoid disclosing metadata information, set the values below to false before deployment-->
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<!--To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information-->
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
this is my web method:
public Guid UploadFile(byte[] ByteStream)
{
Guid id = Guid.Empty;
//upload
using (RepoDbWave dbc = new RepoDbWave())
{
FileItem f = new FileItem();
var count_row = dbc.FileItems.Count(a => a.ID != Guid.Empty);
f.FileContent = ByteStream;
f.FileSize = f.FileContent.Length;
f.Time = DateTime.Now;
FileItem newItem = dbc.FileItems.Add(f);
dbc.SaveChanges();
id = newItem.ID;
}
return id;
}
and my request code:
private void btnUpload_Click(object sender, EventArgs e)
{
OpenFileDialog open = new OpenFileDialog();
open.Filter = "Wave files (*.*)|*.*";
if (open.ShowDialog() == DialogResult.OK)
{
string WaveLocation = open.FileName;
txtUpload.Text = WaveLocation;
byte[] WavebyteArray = File.ReadAllBytes(WaveLocation);
///webClient//////////////////////////////////////////////
WebClient Proxy1 = new WebClient();
Proxy1.Headers["Content-type"] = "application/json";
MemoryStream ms = new MemoryStream();
DataContractJsonSerializer serializerToUplaod = new DataContractJsonSerializer(typeof(byte[]));
serializerToUplaod.WriteObject(ms, WavebyteArray);
byte[] data = Proxy1.UploadData("http://localhost:1866/TransferService.svc/UploadFile", "POST", ms.ToArray());
MemoryStream stream = new MemoryStream(data);
DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(byte[]));
var guID = obj.ReadObject(stream);
lblUpload.Text = guID.ToString();
//////////////////////////////////////////////////////////
}
I think the problem is you are setting the content-type as application/json. But you are passing a byte array in the body. This might confuse the WCF. Instead of using content-type as json try using any stream.
I have a Windows Service which represents the WCF-Host and a WPF-Client-Application wich represents the WCF-Client.
The communication should be duplex so I went with WSDualHttpBinding.
At first I install and start my Service which opens a WCF connection after that I start my WPF app and I get the following error (I translated it):
No default endpoint was found to the contract
\ " WCFCloudManagerFolderWatcherService.Interfaces.IFilesDuplex \ " in the service model client configuration section
refers. This may be caused by: For the purposes of no configuration file was found
or in the client element no endpoint element was found , which corresponded to this contract .
Contracts:
IFilesDuplex-Contract:
[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples", SessionMode = SessionMode.Required,
CallbackContract = typeof(IFilesDuplexCallback))]
public interface IFilesDuplex
{
[OperationContract(IsOneWay = true)]
void Update();
}
IFilesDuplexCallback:
interface IFilesDuplexCallback
{
[OperationContract(IsOneWay = true)]
void Equals(string[] result);
}
ClientSide
CallbackHandler:
class CallbackHandler : IFilesDuplexCallback
{
public event Action<string[]> ReceivedList = delegate { };
public void Equals(string[] result)
{
this.ReceivedList(result);
}
}
The Client itself:
class FilesDuplexClient : DuplexClientBase<IFilesDuplex>, IFilesDuplex
{
public FilesDuplexClient(InstanceContext callbackCntx)
: base(callbackCntx)
{
}
public void Update()
{
base.Channel.Update();
}
}
And the Code from the Main Window, where the error is thrown:
CallbackHandler ch = new CallbackHandler();
ch.ReceivedList += ch_ReceivedList;
// Construct InstanceContext to handle messages on callback interface
InstanceContext instanceContext = new InstanceContext(ch);
// Create a client
FilesDuplexClient client = new FilesDuplexClient(instanceContext);
client.Update();
Serverside (Windows Service)
FileProtocoll-Class (Server code)
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class FileProtocoll : IFilesDuplex
{
IFilesDuplexCallback Callback
{ get { return OperationContext.Current.GetCallbackChannel<IFilesDuplexCallback>(); } }
void IFilesDuplex.Update()
{
//....
Callback.Equals(null);// just a dummy
//...
}
}
Code in the OnStart-Method (in a Thread):
// Step 1 Create a URI to serve as the base address.
Uri baseAddress = new Uri("http://localhost:8899/CloudManager/CommunicationChannel1");
// Step 2 Create a ServiceHost instance
if (selfHost != null)
{
selfHost.Close();
}
selfHost = new ServiceHost(typeof(FileProtocoll), baseAddress);
try
{
// Step 5 Start the service.
selfHost.Open();
}
catch (CommunicationException ce)
{
selfHost.Abort();
}
Code in the OnStop-Method (in a Thread):
if (selfHost != null)
{
if (selfHost.State != CommunicationState.Closed)
{
selfHost.Close();
}
selfHost = null;
}
App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
</startup>
<system.serviceModel>
<services >
<service behaviorConfiguration="ServiceBehavior"
name="WCFCloudManagerFolderWatcherService.Communication.FileProtocoll">
<endpoint address="http://localhost:8899/CloudManager /CommunicationChannel1"
binding="wsDualHttpBinding" contract="WCFCloudManagerFolderWatcherService.Interfaces.IFilesDuplex">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex"
binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true "/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
I finally got it.
Had to make a few changes to my Client app.config and had to turn off security.
app.config(client):
<!-- WCF Client information-->
<system.serviceModel>
<bindings>
<wsDualHttpBinding>
<binding name="WSDualHttpBinding_IFilesDuplex">
<security mode="None"/>
</binding>
</wsDualHttpBinding>
</bindings>
<client>
<endpoint
address="http://localhost:8899/CloudManager/CommunicationChannel1"
binding="wsDualHttpBinding"
bindingConfiguration="WSDualHttpBinding_IFilesDuplex"
contract="WCFCloudManagerFolderWatcherService.Interfaces.IFilesDuplex"
name="WSDualHttpBinding_IFilesDuplex">
<identity>
<userPrincipalName value="localhost"/>
</identity>
</endpoint>
</client>
and in the app.config for the serverside I also hat to set
<security mode="None"/>
Now the connection works.
I am trying to enable https in my WCF service. I've added the SSL certificate to my localhost and I am able to view the WSDL when I use https in the browser. And the WCF service works fine with http without the SSL configuration in the web.config. But as soon as I change it to use https, I get the following error. If anybody can point me to the solution for this issue, it will be helpful as there isn't much reference for this error.
at Microsoft.Http.HttpStageProcessingAsyncResult.Complete(HttpStage stage, Exception e)
at Microsoft.Http.HttpStageProcessingAsyncResult.NextRequest(HttpStageProcessingAsyncResult self)
at Microsoft.Http.HttpStageProcessingAsyncResult..ctor(HttpStageProcessingAsyncState state, AsyncCallback callback, Object user)
at Microsoft.Http.HttpClient.Send(HttpRequestMessage request)
at Microsoft.Http.HttpClient.Send(HttpMethod method, Uri uri, RequestHeaders headers, HttpContent content)
at Microsoft.Http.HttpClient.Send(HttpMethod method, Uri uri)
at Microsoft.Http.HttpMethodExtensions.Method(HttpClient client, HttpMethod method, Uri uri)
at Microsoft.Http.HttpMethodExtensions.Method(HttpClient client, HttpMethod method, String uri)
at Microsoft.Http.HttpMethodExtensions.Get(HttpClient client, String uri)
at MobileScreening.Client.CommonTests.LoginPost(HttpClient client, String username, String password) in c:\TFS Projects\MobileScreening\MobileScreening.Client\CommonTests.cs:line 118
My client code where I am making the request to the service
static string LoginPost(HttpClient client, string username, string password)
{
string key = string.Empty;
try
{
var user = new UserCredentials
{
Email = username,
Password = password
};
Console.WriteLine("User Authentication:");
HttpContent content = HttpContentExtensions.CreateJsonDataContract(user);
using (HttpResponseMessage response = client.Post("AuthenticationService.svc/", content))
{
Console.WriteLine(response.Content.ReadAsString());
Console.WriteLine(response.Headers.ToString());
key = response.Headers["MobileScreening"] ?? string.Empty;
}
}
catch (Exception ex)
{
var stack = ex.StackTrace;
var innerException = ex.InnerException;
var message = ex.Message;
}
return key;
}
My interface with the operation contract
public interface IAuthenticationService
{
[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = "", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
AuthenticationWrapper Authenticate(UserCredentials user);
}
My Service to authenticate users:
public class AuthenticationService : IAuthenticationService
{
public AuthenticationWrapper Authenticate(UserCredentials user)
{
string email = user.Email ?? string.Empty;
string password = user.Password ?? string.Empty;
var authentication = new Authentication();
var authenticationWrapper = new AuthenticationWrapper();
if (!authentication.AuthenticateUser(email, password))
{
const string description = "Authentication failed. Username and/or password is incorrect.";
BLL.Authentication.ThrowAuthorisationFailed(description, email);
WebOperationContext ctx = WebOperationContext.Current;
ctx.OutgoingResponse.StatusCode = HttpStatusCode.Unauthorized;
authenticationWrapper.Code = (short)HttpStatusCode.Unauthorized;
authenticationWrapper.Status = HttpStatusCode.Unauthorized.ToString();
authenticationWrapper.Message = description;
return authenticationWrapper;
}
else
{
const string description = "Authentication: Authenticate User";
LogHandler.LogMessage(email, description, Common.Event.LoginSuccessful);
string authorisationKey = authentication.CreateAuthorisationKey(email);
WebOperationContext ctx = WebOperationContext.Current;
ctx.OutgoingResponse.Headers.Add(Common.AuthorisationHeader, authorisationKey);
ctx.OutgoingResponse.StatusCode = HttpStatusCode.OK;
authenticationWrapper.Code = (short)HttpStatusCode.OK;
authenticationWrapper.Status = HttpStatusCode.OK.ToString();
authenticationWrapper.Message = description;
return authenticationWrapper;
}
}
}
Finally my web.config configuration for the service
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
multipleSiteBindingsEnabled="true" />
<services>
<service name="MobileScreening.ServiceApp.AuthenticationService">
<endpoint address="AuthenticationService" binding="basicHttpBinding" bindingConfiguration="secureHttpBinding" contract="MobileScreening.ServiceApp.IAuthenticationService" />
<endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" />
</service>
<service name="MobileScreening.ServiceApp.ProgrammeService">
<endpoint address="ProgrammeService" binding="basicHttpBinding" bindingConfiguration="secureHttpBinding" contract="MobileScreening.ServiceApp.IProgrammeService" />
<endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" />
</service>
<service name="MobileScreening.ServiceApp.ActivityService">
<endpoint address="ActivityService" binding="basicHttpBinding" bindingConfiguration="secureHttpBinding" contract="MobileScreening.ServiceApp.IActivityService" />
<endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" />
</service>
<service name="MobileScreening.ServiceApp.UserConfigurationService">
<endpoint address="UserConfigurationService" binding="basicHttpBinding" bindingConfiguration="secureHttpBinding" contract="MobileScreening.ServiceApp.IUserConfigurationService" />
<endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" />
</service>
</services>
<bindings>
<basicHttpBinding>
<binding name="secureHttpBinding">
<security mode="Transport">
<transport clientCredentialType="Basic"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpsGetEnabled="true"/>
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
Create a new self signed certificate using your machine name instead of the local host. Configure your solution to use the new certificate and make sure that it is installed in the client machine's under the Trusted Root Certification Authority (in your case, the client is also the server).
Also, you may also try to create the certificate pointing to the machine's fully qualified domain name.
I use visual studio 11 to add service (Add service Reference).
When I added the service Article, I have An articleClient with one constructor:
public RssArticleServiceClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) :
base(binding, remoteAddress) {
}
How can I use this constructor, i don't know which value of binding should I use??
Any example or sample please??
Merci
Best regards
I do this:
BasicHttpSecurityMode securitymode = BasicHttpSecurityMode.Transport; BasicHttpBinding binding = new BasicHttpBinding(securitymode); binding.MaxReceivedMessageSize = int.MaxValue; binding.MaxBufferSize = int.MaxValue; Uri uri = new Uri("adresse/RssArticleService.svc";); _clientArticles = new RssArticleServiceClient(binding, new EndpointAddress("adresse/RssArticleService.svc";)); var result=await _clientArticles.GetRssDataAsync("1", "fr");
And A cath this error:
**here was no endpoint listening at adresse/RssArticleService.svc that could accept the message. This is often caused by an incorrect address or SOAP**
What can i do, should i change the type of binding??
This is my implementation :
BasicHttpSecurityMode securitymode = HostSource.Scheme.Equals("https", StringComparison.InvariantCultureIgnoreCase) ? BasicHttpSecurityMode.Transport : BasicHttpSecurityMode.None;
BasicHttpBinding binding = new BasicHttpBinding(securitymode);
binding.MaxReceivedMessageSize = int.MaxValue;
binding.MaxBufferSize = int.MaxValue;
Uri uri = new Uri(Application.Current.Host.Source, "../service.svc");
_client = new RssArticleServiceClient(binding, new EndpointAddress(uri))
EDIT : you need to add this in your web.config :
<system.serviceModel>
<services>
<service name="namespace.RssArticleService"
behaviorConfiguration="RssArticleServiceBehavior">
<endpoint address=""
binding="basicHttpBinding"
contract="namespace.IRssArticleService"/>
</service>
</services>
<serviceBehaviors>
<behavior name="RssArticleServiceBehavior">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
</system.serviceModel>