I have created a WCF service which is hosted in IIS and that tries to call another web service (3rd party) to return some data. When trying to connect the service fails with the following error:
There was no endpoint listening at https://xxx (3rd party ws) that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
And this is while, my service is up (i know from my echo method) and it works successfully if it is self hosted.
I have the whole and sections copied to the model of web.config exactly as it is for the self hosting test but something still is missing.
I have been through other similar problems reported but mine is little bit specific in that the service is kind-of hosting another one and that one is causing the issue.
I can try to exlain better with a real example:
There is a simple web service here: http://www.dneonline.com/calculator.asmx which I want to wrap inside our library and provide access to via an IIS hosted WCF.
So, a class library is created (Calculator project) to with one method, add to take two int arguments and use them to call the web service add method. The webservice is referenced as a Service Reference inside the library and is being addressed inside from within the config library app.config file like below:
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="CalculatorSoap" />
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://www.dneonline.com/calculator.asmx"
binding="basicHttpBinding" bindingConfiguration="CalculatorSoap"
contract="Service.CalculatorSoap" name="CalculatorSoap" />
</client>
</system.serviceModel>
</configuration>
Then there is a WCF class library (CalcService project) which uses the first class library to enable http endpoints. Again, the app.config file includes endpoints both as for the service itself and as a client of the class library. The app.config file looks almost like this:
<configuration>
<system.serviceModel>
<services>
<service name="CalcService.Calc">
<host>
<baseAddresses>
<add baseAddress = "http://localhost:8733/Design_Time_Addresses/CalcService/Calc/" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<endpoint address="" binding="basicHttpBinding" contract="CalcService.ICalc">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<!-- Client endpoint, i.e. to be able to use the calculator.asmx service addressed in the class library -->
<client>
<endpoint address="http://www.dneonline.com/calculator.asmx"
binding="basicHttpBinding"
contract="Service.CalculatorSoap" name="CalculatorSoap" />
</client>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
<serviceDebug includeExceptionDetailInFaults="True" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
I am able to test the whole thing via a console application that makes a call to the WCF service and receives an answer. The console application config file has only one client endpoint to the WCF like below:
<configuration>
<system.serviceModel>
<client>
<endpoint address="http://localhost:8733/Design_Time_Addresses/CalcService/Calc/"
binding="basicHttpBinding" contract="Calculator.ICalc" name="BasicHttpBinding_ICalc" />
</client>
</system.serviceModel>
</configuration>
My question is now how I can host the WCF service inside IIS? I have tried different ways but neither one worked. My current IIS project (which doen't work) looks like this:
1-Has project references to both prevoius projects (Class Library and WCF Service) so two dll files are being added to the references:
CalcService.dll
Calculator.dll
2-Has a CalcService.svc file which creates a ServiceHost toward the CalcService:
<%# ServiceHost Language="C#" Debug="true" Service="CalcService.Calc"%>
3-Has a web.config with cliend endpoint to calculator.asmx:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="CalculatorSoap" />
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://www.dneonline.com/calculator.asmx"
binding="basicHttpBinding" bindingConfiguration="CalculatorSoap"
contract="Service.CalculatorSoap" name="CalculatorSoap" />
</client>
<!-- some other settings -->
</system.serviceModel>
Now, when tested with a simple client to make a call to the calculator add method it fails with the following error:
There was no endpoint listening at http://www.dneonline.com/calculator.asmx that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
I don't know which message the endpoint is expecting, I could just assumed it has to be Service.CalculatorSoap as it worked before from the console application.
On the other hand, what confuses me is that a self hosted WCF also works (via http://localhost:8733/Design_Time_Addresses/CalcService/Calc/ from the config file in the WCF class library project).
I don't know what is missing here, is it something from the IIS configuration or permissions?
Or someting else like the windows firewall setting like explained in this post:
https://social.msdn.microsoft.com/Forums/vstudio/en-US/bec3ab7a-310e-415f-b538-6d5681e5e53c/there-was-no-endpoint-listening-at?forum=wcf
Just note that since I am using a company computer, I'm not able to shut down the firewall. I can just turn on/off some of the rules.
I hope it is clear now what we are after.
We tested the solution on a cloud based machine and it worked fine. In the end it looked to be some firewall rules blocking the IIS outgoing calls and nothing was wrong in the configuration files or in the code.
I have been trying to resolve a problem that I am having with a WCF service hosted on our cloud platform. Service is written targeting .NET 4.0. I can access the service using both wsHttpBinding and basicHttpBinding over just plain http. However, when I try and access the service over a https end point it consistently gives me an endpoint not found exception which is odd because on the client I add a service reference pointing at the https end point and this should be sufficient to build a compatible proxy?
The web site has a SSL certificate setup which is valid, and the site hosting the service has a binding in IIS that uses this certificate. I can browse to the https URL from within the IIS snap-in and it finds the service with no problems, and I can use the same url from my desktop and get the normal "you have created a service page". IIS has anonymous authentication enabled only.
Here is where I get a bit hazy on what I have to do in terms of the WCF configuration.
In the server web.config I have security mode of Transport and
client credentials of None (Think I need this because of the
anonymous authentication on the host service)
Also in the server web.config I have set up mex end points for each
of the server's end points that are defined.
Is there anything else I need to do here?
On the client side
I have created a basic console app, and create a service
reference pointing at the https url and this is found
In the code I instantiate the proxy and call a method that invokes
the service.
When I run the code I get the end point not found exception.
I have created a really basic ASP.NET web site on my local IIS that hosts a really simple service. I have added a self-signed certificate and in the mmc snap-in I have imported this as a trusted certificate. I have set up a wsHttp end point for both secure and non-secure and when I create a simple client that references the service I get the same problem when using a https end point.So I can replicate the problem I am seeing in the live environment.
The event viewer doesn't shed any light on anything untoward happening.On my various searches I found references to re-registering asp.net and the WCF runtime components. Tried all this to no avail. Getting really stuck. I've included the config from my local asp.net web site, and the client config so people can scan what I have. Any suggestions on what else I could try would be great. I'm hoping I have overlooked something obvious that another pair of eyes with more experience with WCF can spot.
Thanks in advance.
Server config:
<system.serviceModel>
<diagnostics>
<messageLogging logEntireMessage="true" logMalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" maxMessagesToLog="500" />
</diagnostics>
<services>
<service name="NorthwindServices.ProductService">
<host>
<baseAddresses>
<add baseAddress="http://localhost:8732/Design_Time_Addresses/NorthwindServices/ProductService/" />
</baseAddresses>
</host>
<endpoint address="" binding="wsHttpBinding" contract="NorthwindServices.IProducts">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="wsHttpBinding" contract="IMetadataExchange" />
</service>
</services>
<bindings>
<wsHttpBinding>
<binding name="Secure">
<security mode="TransportWithMessageCredential">
<transport clientCredentialType="Basic">
</transport>
</security>
</binding>
</wsHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
</
==================================================================================
Client config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_IProducts">
<security mode="Transport"></security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="https://localhost/Northwind.svc" binding="wsHttpBinding"
bindingConfiguration="WSHttpBinding_IProducts" contract="ProductProxy.IProducts"
name="WSHttpBinding_IProducts">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
BindingConfiguration is optional since an endpoint is primarily composed of address, binding and contract. If no wsHttpBinding is defined under bindings, the default configuration will be used; if there's one under wsHttpBinding without name or with empty name, the binding configuration will be used if the endpoint does not declare a named one. And you may have multiple named binding configuration under wsHttpBinding, and each endpoint may pick one accordingly. The problems so far according to your config files listed has nothing to do with bindingConfiguration as they all look fine. However, the baseAddress in service side and the client endpoint address do not seem to match, and I presume you are using svc files for service activation. Then you need to make sure the svc files are located in the right place through proper routing. Alternatively you may use config activation without using svc files.
I have been using stackoverflow.com as a resource as a professional programmer for years now. I would say 8 out of 10 times when I search for something on google, I get pointed to a question and answer here, and I am always relieved when that happens, because I know I am about to find the information I need.
I have been pulling my hair out trying to figure (what I think to be) a simple problem out, concerning setting up a routing service using WCF technology. I have browsed through the questions with similar titles here, and I have consulted a great many resources (both actual books on the subject, as well as websites) trying to figure this out, to no avail.
In a nutshell, I want to setup a system with the following layout:
{client}<-basicHTTP->{portal/router}<-fullWCF-WS*->{end-point-services1..n}
client: gets service reference to portal, able to call functions at end-point service
portal/router: gets requests from client, and sends them on to end-point services in a multi-cast setup
end-point-services1..n: gets request from client, routed through portal, processes request to search for things, and either responds, or logs data in a database to be checked later
I am, 100%, able to get a routing service up and running. The most successful models I have been able to follow, were outlined in the "What's new in WCF4: exercises 8 & 9, content bridging & routing" (msdn.microsoft.com/en-us/gg465212) and "Hello World with the Routing Service" (msdn.microsoft.com/en-us/library/dd795218.aspx) But I have used bits and pieces from all of the sources I have consulted (listed below).
Basically, what is frustrating me, is that I want a client (a 3rd party) to be able to just add a web service reference to the portal service (or, worst case scenario, use the svcutil.exe method), and be done with setup on their part. With that reference, they will have references to all the functions/methods they would want to call in all scenarios. The models I have looked at that do this require 2 references, one to the actual service, and one to the router, and then force the client to specifically call the router in their setup. None of my other attempts to make this particular setup work, have worked.
Your help with this would be greatly appreciated.
Here is a simplified version of my working model that almost is doing what I want:
(note, all services are being hosted in IIS)
PORTAL SERVICE (and IIS Host)
Portal.svc:
<%# ServiceHost Service="System.ServiceModel.Routing.RoutingService, System.ServiceModel.Routing, version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
Web.config:
<configuration>
<system.serviceModel>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
<bindings>
...
</bindings>
<client>
<endpoint address="http://searcher1/Searcher.svc/general" binding="basicHttpBinding" contract="*" name="regularSearchServiceEndpoint" />
<endpoint address="http://searcher2/Searcher.svc/general" binding="basicHttpBinding" contract="*" name="regularSearchServiceEndpoint2" />
</client>
<behaviors>
...
</behaviors>
<routing>
<filters>
<filter name="MatchAllFilter" filterType="MatchAll" />
</filters>
<filterTables>
<filterTable name="filterTable1">
<add filterName="MatchAllFilter" endpointName="regularSearchServiceEndpoint" backupList="backupList1" priority="0"/>
</filterTable>
</filterTables>
<backupLists>
<backupList name="backupList1">
<add endpointName="regularSearchServiceEndpoint2"/>
</backupList>
</backupLists>
</routing>
<services>
<service behaviorConfiguration="routingConfiguration" name="System.ServiceModel.Routing.RoutingService">
<endpoint address="general" binding="basicHttpBinding" name="routerEndpoint1" contract="System.ServiceModel.Routing.IRequestReplyRouter" />
</service>
</services>
</system.serviceModel>
</configuration>
SEARCH SERVICE
ISearch.cs:
namespace SearchService
{
[ServiceContract]
public interface ISearch
{
[OperationContract]
string Ping();
[OperationContract]
string searchByInput(string input);
}
}
App.config:
<configuration>
<!-- When deploying the service library project, the content of the config file must be added to the host's
app.config file. System.Configuration does not support config files for libraries. -->
<system.serviceModel>
<bindings>
<basicHttpBinding>
...
</basicHttpBinding>
<customBinding>
...
</customBinding>
</bindings>
<client>
...
</client>
<services>
<service name="SearchService.Search">
<endpoint address="general" binding="basicHttpBinding" contract="SearchService.ISearch" name="SearchService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost:8732/Design_Time_Addresses/SearchService/Service1/"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="True"/>
<serviceDebug includeExceptionDetailInFaults="False"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
SEARCH SERVICE HOST
Search.svc:
<%# ServiceHost Service="SearchService.Search" %>
Web.config:
<configuration>
<system.serviceModel>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
<bindings>
<basicHttpBinding>
<!--copied over from SearchService.App.config-->
</basicHttpBinding>
<customBinding>
<!--copied over from SearchService.App.config-->
</customBinding>
</bindings>
<client>
<!--copied over from SearchService.App.config-->
</client>
<services>
...
</services>
<behaviors>
...
</behaviors>
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>
CLIENT (where it all goes wrong)
Only way I have been able to get it to do what I want, is to add a web service reference to the searcher service (named "remotehost"), and then manually add client endpoints to the app.config file for the router, and force the client code to use that, INSTEAD of the direct link it already has to the searcher
Main.cs:
namespace Client
{
public partial class Main : Form
{
remotehost.SearchClient proxy;
public Main()
{
InitializeComponent();
proxy = new remotehost.SearchClient("RouterService");//("BasicHttpBinding_ISearch")
}
private void button1_Click(object sender,EventArgs e)
{
string response = string.Empty;
//uses method exposed by the SearchService service
response = proxy.Ping();
MessageBox.Show("Response from remote service:\n" + response
"Ping Response",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
}
}
App.config:
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
...
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://searcher1/Searcher.svc/general" binding="basicHttpBinding" bindingConfiguration="SearchService" contract="remotehost.ISearch" name="SearchService" />
<!--I manually added this-->
<endpoint address="http://portal/Portal.svc/general" binding="basicHttpBinding" contract="remotehost.ISearch" name="RouterService" />
</client>
</system.serviceModel>
</configuration>
I want to emphasize, this all WORKS, but it doesn't work the WAY I want it to. I am fairly certain I can push/pull/cajole this into the elegant setup I am envisioning, but I can't seem to find a resource or guide that will walk me through it for the first time.
Help?
Sources I have consulted, before coming here:
Learning WCF: A Hands-on Guide, by Bustamante, Michele Leroux {978-0-5961-0162-6} (read cover to cover, and did all exercises)
Windows Communication Foundation 4: Step By Step {978-0-7356-4556-1} (focused on chapter 14: Discovering Services and Routing Messages)
msdn.microsoft.com/en-us/library/ms734712.aspx {WCF: Getting Started Tutorial}
msdn.microsoft.com/en-us/gg465212 {what's new in WCF4: exercises 8 & 9, content bridging & routing}
codeproject.com/Articles/146835/How-to-create-scalable-services-with-WCF-4-0-Route {How to create scalable services with WCF 4.0 Router and Discovery services}
msdn.microsoft.com/en-us/library/dd795218.aspx {Hello World with the Routing Service}
msdn.microsoft.com/en-us/library/ee517421.aspx {routing}
msdn.microsoft.com/en-us/library/ee517423.aspx {routing service overview}
msdn.microsoft.com/en-us/library/ee517418.aspx {routine service features}
msdn.microsoft.com/en-us/library/ee517422.aspx {routing intro}
msdn.microsoft.com/en-us/library/ee517420.aspx {routing contracts}
msdn.microsoft.com/en-us/library/bb332338.aspx {wcf routing}
msdn.microsoft.com/en-us/library/ms730158.aspx {more wcf routing}
msdn.microsoft.com/en-us/library/ee354381.aspx {more wcf routing}
dandcohen.wordpress.com/2010/03/02/wcf-4-routing-service-multicast-sample/ {WCF 4 Routing Service Multicast sample}
UPDATE: 2012-04-28:
I figured out a way to do what I wanted. It still isn't as elegant as I wanted, but it get the job done and has allowed me to move forward.
Basically, take the interface from the main service, and implement it in a new service, call it router or portal, or whatever. In the new router/portal service, add a new service reference to the main service.
Now, both services are using the same interface, and have the same signatures for all their methods, so you can then just give the portal/router service wsdl to the 3rd party client, and only allow your portal/router service to communicate with the main service.
Additionally, if you have more than one main service, you can use the portal/router service to decide which of the main services to send requests to, using multiple service references to them, and proxies to send the jobs onward. It works really well.
It is basically a manual front-end routing service, but the beauty is, the detailed work can be done in the main services on a threading model, while the gatekeeping work can be done at the portal/router, so only actual requests are sent to the main services, allowing them to only do work, and the portal services to decide how or if they get that work. The next step I want to add it automatic discovery of new services, but for now, manual configuration is working fine.
I can post the source code for what I came up with, if anyone wants to see it and requests it.
The fundamental problem is that the router knows nothing about the service contract that the service is using - it uses a universal contract (one which uses the Message type). Therefore, there is no way for the router to auto-generate the metadata for the client.
What you will need to do is provide the metadata yourself, maybe as a static WSDL document, with the correct addresses in it and point clients to this
I have seen loads of questions about this, I've spent over a day researching and trying to fix it but I've drawn a blank.
I want to deploy a WCF service onto a server connecting with HTTPS and using basic authentication. Here is my service web.config
I am using an extremely simple Calculator as a test which has a single method which adds together two numbers.
<configuration>
<system.web>
<compilation debug="false" targetFramework="4.0" />
<customErrors mode="Off" />
</system.web>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="UsernameWithTransport">
<security mode="Transport">
<transport clientCredentialType="Basic" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<services>
<service name="Service">
<endpoint address="https://myserver.mydomain.co.uk/CalculatorService"
binding="wsHttpBinding"
bindingConfiguration="UsernameWithTransport"
name="BasicEndpoint"
contract="TestCalculator" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
In IIS 6.0 I have enabled basic authentication and required HTTPS.
I can browse to the .svc file and it asks for my credentials. I provide them and it displays the default page. However it says:
You have created a service.
To test this service, you will need to create a client and use it to
call the service. You can do this using the svcutil.exe tool from the
command line with the following syntax:
svcutil.exe
http://myserver.mydomain.co.uk/CalculatorService/Service.svc?wsdl
This will generate a configuration file and a code file that contains
the client class. Add the two files to your client application and use
the generated client class to call the Service. For example: ......
Basically, the issue seems to be that the path to the .wsdl is a http:// not an https:// and I don't think I understand why.
I am now trying to create a C# console application to test consuming the service. I cannot add the reference to the .svc path directly because it just goes around and around in a loop asking me for my username and password. If I add the reference to the .svc?wsdl then that did work but then invoking the service gives a "Method not allowed" because it is trying to use HTTP not HTTPS.
Hope I have expained this well enough. Thanks for any help.
You requires HTTPS but in the same time you allow WSDL only over HTTP. Change this:
<serviceMetadata httpGetEnabled="true"/>
To this:
<serviceMetadata httpsGetEnabled="true"/>
Now you will be able to access WSDL over https://..../....svc?wsdl but you will still have to authenticate because authentication is global for your deployed site.
Has anyone ever tried to use custom binding with SSL in a WCF web service? I've seen a number of examples on how to do this with basicHttpBinding and wsHttpBinding but the equivalent always fails for customBinding. Specifically what I'm currently working with (the most successful configuration yet) looks something like this:
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true">
</serviceHostingEnvironment>
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceBehavior">
<serviceMetadata httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<customBinding>
<binding name="binaryHttps">
<binaryMessageEncoding />
<httpsTransport />
</binding>
</customBinding>
</bindings>
<services>
<service behaviorConfiguration="MyServiceBehavior" name="MyService">
<host>
<baseAddresses>
<add baseAddress="https://(myserver)/"/>
</baseAddresses>
</host>
<endpoint address=""
binding="customBinding" bindingConfiguration="binaryHttps"
contract="MyService" />
<endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
</service>
</services>
</system.serviceModel>
This actually allows us to access the service from the web, get it's WSDL and add a service reference inside visual studio alright, but when we actually try and use it live in our silverlight-3 application, it just sits there indefinitely waiting for a response and never times out. It actually ends up giving me low memory problems after a while on my machine (with 6GB of memory). The odd thing is that all this worked (and still does) perfectly in the development environment (using strictly the VS application hosts), it wasn't until we tried to deploy it to an actual server with a real SSL certificate that all these issues popped up.
I've searched fairly exhaustively for a solution to this problem but have so far not found anything and have tried just about everything - Is there anyone out there that's encountered this before and got around it?
So it turns out the problem wasn't with our web.config at all, it had to do with an issue with IIS 7 and Wildcard SSL certificates.
Namely, IIS 7 doesn't allow you to specify the hostname when binding an IP to an SSL connection and certificate. I'd guess that this is because it expects a non-wildcard SSL certificate that it can extract the explicit hostname from. What we ended up having to do was to go into the applicationHost.config file in {WindowsDir}\{System32}\{Inetsrv}\{config} and find the entry with our web service's bound IP address and change it explicitly to (ip):(hostname). It was then even displayed properly in the IIS config GUI.
After doing this we were to completely turn off all but SSL channels on all our servers and everything worked beautifully.
Thank god that's over!
AFAIK, using SSL has performance problem. We are using WCF behiovr to do the authentication. The way that we are using is that Silverlight => ASP.NET => WCF. We configured the Endpoint behivor in both Silverlight and WCF. Whenever we call the service, we passed the token for authentication.
Are you saying that you can use custom binding in ClientConfig of Silverlight?