I learned about the basics of making a web service with Visual Studio 2008 ASP.Net + VB. And I got the "Hello World" working, but for some reason I can't get a function method to work the same way without this error, and I can't any info anywhere what to do about it.
Code:
*Web Service:*
<WebMethod()> _
Public Sub logEvent(ByVal userId As String, ByVal userGroup As String)
'method functions here
End Sub
*Mainpage Code-behind*
Protected Sub webrefTester()
Dim testi As my_dbServer.Service
testi = New my_dbServer.Service
testi.Credentials = System.Net.CredentialCache.DefaultCredentials
'have to include this because i use urls instead of local to simulate
'intended functionality, so there were authorization issues at first
testi.logEvent("userId_0", "Mgmt Services 2010")
End Sub
As said, the hello world works fine, so I have added the web reference to the solution where I need to use the web service etc etc. I just can't seem to pass parameters for the web service, it always throws a soapexception. I need that for logging info into the database.
Any other tips for a first-timer web service user would be welcome too. Basically my project has me doing a service that can be used for various software to log event information such as visitor types, possible error messages etc.
Thanks again!
It just says SoapException, this is the error message:
"Server was unable to process request. ---> Object reference not set to an instance of an object."
Related
We have an application that periodically pulls data from a SharePoint list and integrates with another application. We've been using it for more than a year without a problem. Recently, however, we switched our farm to use claims-based authentication... and there went the app.
My code, at a high level, does the following:
SPWebRefs.Lists spl = new SPWebRefs.Lists();
spl.Credentials = System.Net.CredentialCache.DefaultCredentials;
//Build request here
XmlNode listItems = spl.GetListItems("My list", view, query, viewFields, null, queryOptions, null);
I get an "Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown" exception right there.
I'm looking through Fiddler, and I get the 401 challenge, quickly followed by a 200 response, which I assume means I'm in. But then I get a 500 error as soon as the GetListItems method is invoked.
I've tried this against a 2010 instance as well as a 2013 farm that we're getting ready to deploy. Same situation.
I'm using the 4.0 Framework at this point, but I've considered testing it out against the 4.5 Framework, which includes some new APIs for claims authentication. Would that make any difference?
Any thoughts would be greatly appreciated. Thanks so much in advance!
You must call SharePoint's Authentication WebService first. You will get a cookie from it, which you can pass to the Lists WebService.
See a sample here: http://www.tonytestasworld.com/post/2009/06/04/How-To-Authenticate-and-Use-SharePoint-Web-Services-in-an-FBA-SharePoint-site.aspx
I am trying to learn webservices in .NET mvc4. I tried creating a new Internet application and adding a Web service (asmx) to the project.
By default, the VS adds a "HelloWorld" Webservice. When I try to run it in the browser, I do get the list of operations, service description(WSDL) and the details of the HellowWorld operation. However, when I try invoking the webservice, it gives the following error :
Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its
dependencies) could have been removed, had its name changed, or is
temporarily unavailable. Please review the following URL and make
sure that it is spelled correctly.
I might be missing some basic step/setting I guess. Could some body help please. Thanks.
I got the answer from one of my colleagues :) .
When we invoke the service, the MVC tries to resolve the path as specified in RegisterRoutes.
Hence it tries to find a controller with that name and a method with the name same as that of the operation inside that controller. The resolution, ignore the paths with .asmx extension. You can do that by adding the following line in RouteConfig.cs :
routes.IgnoreRoute("{*x}", new { x = #".*\.asmx(/.*)?" });
and it worked. Thanks.
I've researched the web extensively before posting this questions here, couldn't find anything usefull for me, so here it goes. Sorry in advance for the wall of text.
I have a classic ASP website that needs to call a web service method (not wcf, but an asmx page) on a asp.net website (4.0)
The way I consume the web service is as follows:
I have a webserviceclass.asp that helps me consume web services in classic asp.
code of webserviceclass.asp -> https://docs.google.com/file/d/0B1Wr1Kw74xy3ZkducEtiTWNtWDA/edit?usp=sharing
Then calling the class to consume the method.
Dim strWebServiceResult
Dim ws
Set ws = new webservice
ws.url = "http://www.myurl.com/mywebservice.asmx"
ws.method = "HelloWorld"
ws.parameters.Add "Parameter1", "Test1"
ws.parameters.Add "Parameter2", "Test2"
ws.Execute
strWebServiceResult = ws.response
This works perfectly if www.myurl.com is not encrypted, strWebServiceResult holds the XML returned by mywebservice.asmx, however I really need the data traveling between the users and www.myurl.com to be encrypted (mywebservice.asmx has parameters for login and password to authenticate on the webservice) so I bought an SSL cert and assigned it to www.myurl.com website becoming https://www.myurl.com
So when I set the URL in the class to: ws.url = "https://www.myurl.com/mywebservice.asmx"
and that is the only thing that changes, the method doesn't get called anymore. I have log on pageinit and pageload of the mywebservice.aspx and it doesn't even get called.
Sorry about the long text, and I hope someone can help me. I have no experience with jquery or json and I'd rather not go that way to solve this problem, but if that's the only way, I can try if there's enough info out there to help me out but I'd rather try to fix my current code if that possible. I just don't understand why it works with http but not with https
Many thanks in advance
In this SO question ("Can't use HTTPS with ServerXMLHTTP object"), this issue was addressed.
For a starter, you should be using "MSXML2.ServerXMLHTTP" instead of "Microsoft.XMLHTTP" on the server side. This is discussed here, f.i.: differences between Msxml2.ServerXMLHTTP and WinHttp.WinHttpRequest?
I have an application that calls a Https web service (as it seems created with java, not sure though). I get an error as response:
"Error on verifying message against security policy Error code:1000"
Now I don't exactly understand the error code and currently cannot find any responsible to answer me correctly. I don't ask for the error ofcourse cause this could be something about certificates, security from server etc.
Though I would like to catch the request client call I make, and see the whole envelope message to compare with a couple of samples I have so I might catch something.
How can I do this....I remember there is a tool that u can do such things when debugging a WCF service call, can this tool be used in this situation? Can someone rember me the name of the tool :)
I created the client using Add Service Reference, from VS 2010 and it created some custom bindings. On these bindings it created this a tag with an attribute decompressionEnabled="true" but I deleted because VS was complaining attribute is not allowed!!!
The documentation I have for these services says about authentication credential inside the message transport object that serialized in the request (requestObject) but refers to another couple of password and username properties I cannot seem to find them. Tried to add the in client.ClientCredentials.UserName.UserName and Password properties, but I get a read only error there (strange not always).
They also mention in the specifications about Connect with SOAP Security Extensions (WS-Security) which I don't understand if me, the client, has to do something from it's side, aren't these supposed to extract in the config file when generated?
Any hints and tips are welcome.
Thank you.
I'm trying to built a SharePoint Web Part that has as part of it a service reference to Another SharePoint server that I need to call from within vb code. However when I try to call the remote web service for the first time, I get the following in the log:
Could not find default endpoint element that references contract 'ListReference.ListsSoap' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element. at System.ServiceModel.Description.ConfigLoader.LoadChannelBehaviors(ServiceEndpoint serviceEndpoint, String configurationName)
at System.ServiceModel.ChannelFactory.ApplyConfiguration(String configurationName)
at System.ServiceModel.ChannelFactory.InitializeEndpoint(String configurationName, EndpointAddress address)
at System.ServiceModel.ChannelFactory1..ctor(String endpointConfigurationName, EndpointAddress remoteAddress)
at System.ServiceModel.EndpointTrait1.CreateSimplexFactory()
at System.ServiceModel.ClientBase1.CreateChannelFactoryRef(EndpointTrait1 endpointTrait)
at System.ServiceModel.ClientBase1.InitializeChannelFactoryRef()
at System.ServiceModel.ClientBase1..ctor()
at VSeWSS.ChangeRequestWorkflow.ChangeRequest.SubmitForm(Object sender, EventArgs e)
What is the proper way to deploy a Web Part with a Service Reference, could I be doing something wrong? Thanks!
You need to add the endpoint configuration into the web.config of the SharePoint site that is consuming the webservice.
I found this question that solved my problem.
Basically, I just needed to create a BasicHttpBinding object and populate its properties with the ones the SVC generator made in my app.config.
WCF Configuration without a config file
Actually I solved my problem. My application has many projects, and the config file was in the project calling the WebService, but it seems it has to be in the starting project...
Hm, if I'm understanding what you're asking correctly, I'm doing that. I just added the webservice from one of the correct endpoints to the project in VS, then before I call it in my actual code, I get the URL I want to connect to with this call from the hierarchical object store from Codeplex, then set the Url property. So:
MyService srv = new MyService();
srv.Url = SPContext.Current.Web.Properties["serviceurl"];
Its working like that fine.
hth.