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  • wcf web service in post method, object properties are null, although the object is not null

    - by Abdalhadi Kolayb
    i have this problem in post method when i send object parameter to the method, then the object is not null, but all its properties have the default values. here is data module: [DataContract] public class Products { [DataMember(Order = 1)] public int ProdID { get; set; } [DataMember(Order = 2)] public string ProdName { get; set; } [DataMember(Order = 3)] public float PrpdPrice { get; set; } } and here is the interface: [OperationContract] [WebInvoke( Method = "POST", UriTemplate = "AddProduct", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json)] string AddProduct([MessageParameter(Name = "prod")]Products prod); public string AddProduct(Products prod) { ProductsList.Add(prod); return "return string"; } here is the json request: Content-type:application/json {"prod":[{"ProdID": 111,"ProdName": "P111","PrpdPrice": 111}]} but in the server the object received: {"prod":[{"ProdID": 0,"ProdName": NULL,"PrpdPrice": 0}]}

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  • WCF/webservice architecture question

    - by M.R.
    I have a requirement to create a webservice to expose certain items from a CMS as a web service, and I need some suggestions - the structure of the items is as such: item - field 1 - field 2 - field 3 - field 4 So, one would think that the class for this will be: public class MyItem { public string ItemName { get; set; } public List<MyField> Fields { get; set; } } public class MyField { public string FieldName { get; set; } public string FieldValue { get; set; } //they are always string (except - see below) } This works for when its always one level deep, but sometimes, one of the fields is actually a point to ANOTHER item (MyItem) or multiple MyItem (List<MyItem>), so I thought I would change the structure of MyField as follows, to make FieldValue as object; public class MyField { public string FieldName { get; set; } public object FieldValue { get; set; } //changed to object } So, now, I can put whatever I want in there. This is great in theory, but how will clients consume this? I suspect that when users make a reference to this web service, they won't know which object is being returned in that field? This seems like a not-so-good design. Is there a better approach to this?

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  • Http 400 'Bad Request' and win32status 1450 when larger messages are sended to a WCF service

    - by Tim Mahy
    Hi all, we sometimes receive Http 400 bad request resultcodes when posting a large file (10mb) to a WCF service hosted in IIS 6. We can reproduce this using SOAP UI and it seems that it is unpredictable when this happens. In our WCF log the call is not received, so we believe that the request does not reach the ASP.NET nor WCF runtime. This happens on multiple websites on the same machine each having their own application pool. All IIS settings are default, only in ASP.NET and WCF we allow bigger readerQuota's etc.... The win32status that is logged in the IIS log is 1450 which we think means "error no system resources". So now the question: a) how can we solve this b) (when a is not applicable :) ) which performance counters or logs are usefull to learn more about this problem? greetings, Tim

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  • Http 400 'Bad Request' and win32status 1450 when larger messages are sended to a WCF service

    - by Tim Mahy
    we sometimes receive Http 400 bad request resultcodes when posting a large file (10mb) to a WCF service hosted in IIS 6. We can reproduce this using SOAP UI and it seems that it is unpredictable when this happens. In our WCF log the call is not received, so we believe that the request does not reach the ASP.NET nor WCF runtime. This happens on multiple websites on the same machine each having their own application pool. All IIS settings are default, only in ASP.NET and WCF we allow bigger readerQuota's etc.... The win32status that is logged in the IIS log is 1450 which we think means "error no system resources". So now the question: a) how can we solve this b) (when a is not applicable :) ) which performance counters or logs are usefull to learn more about this problem? greetings, Tim

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  • WCF vs ASMX web service

    - by shailesh
    I am totally confused between WCF and ASMX web service. I have used lot of web service in earlier stage and now there is new thing introduced WCF. I can still create WCF that function as a web service. I think there will be more stuff in WCF. Can any one provide me any article or difference between WCF and Web service? Which one to use and when?

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  • Sharing an Apache configuration between testing vs. production

    - by Kevin Reid
    I have a personal web site with a slightly nontrivial Apache configuration. I test changes on my personal machine before uploading them to the server. The path to the files on disk and the root URL of the site are of course different between the test and production conditions, and they occur many places in the configuration (especially <Directory blocks for special locations which have scripts or no directory listing or ...). What is the best way to share the common elements of the configuration, to make sure that my production environment matches my test environment as closely as possible? What I've thought of is to use SetEnv to store the paths for the current machine in environment variables, then Include a common configuration file with ${} everywhere there's something machine specific. Any hazards of this method?

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  • Where can I find WebSphere configuration files?

    - by Nicholas Key
    Hi there, I would like to know where are the WebSphere configuration details saved? Specifically, configuration details that are shown in the Administrative Console (from the web) or from the console using wsadmin. Some of the examples would be: Java and Process Management: Class loader, Process definition, Process execution Container Settings: Session management, SIP Container Settings, Web Container Settings, Portlet Container Settings Are there XML files that persist these configuration details? Nicholas

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  • Checking the configuration of two systems to determine changes

    - by None
    We are standing up a replicant data center at work and need to ensure that the new data center is configured (nearly) identically to the original. The new data center will be differently addressed and named than the original and will have differing user accounts, but all the COTS, patches, and configurations should be the same. We would normally ghost the original servers and install those images onto the new machines, however, we have a few problematic pieces of COTS that require we install them outside of an image due to how they capture the setup of the network during their installation and maintain it within their configuration information (in some cases storing it in various databases). We have tried multiple times and this piece of COTS cannot be captured within a ghost image unless the destination machine will have an identical network setup (all the same IPs, hostnames, user accounts, etc across the entire network) as the original. In truth, it is the setup of these special COTS that I want to audit the most because they are difficult to install and configure in the first place. In light of the fact that we can’t simply ghost, I’m trying to find a reasonable manner to audit the new data center and check to see if it is setup like the original (some sort of system wide configuration audit or integrity check). I’m considering using something like Tripwire for Servers to capture the configuration on the source machines and then run an audit on the destination machines. I understand that it will still show some differences due to the minor config changes, but I’m hoping that it will eliminate the majority of the work. Here are some of the constraints I’m working under: Data center is comprised of multiple Windows and Linux machines of differing versions (about 20 total) I absolutely cannot ghost or snap any other type of image of these machines … at least not in their final configuration I want to audit the final configuration to ensure all of the COTS, patches, configurations, etc are installed and setup properly (as compared to the original data center) I would rather not install any additional tools on these machines … I’d much rather run it from a standalone machine or off a DVD Price of tools is important but not an impossible burden, however, getting a solution soon is important (I can’t take the time to roll my own tools to do this) For the COTS that stores the network information, I don’t know all of the places it stores the network information … so it would be unlikely I could find a way in the near future to adjust its setup after the installation has occurred Anyone have any thoughts or alternate approaches? Can anyone recommend tools that would be usable for system wide configuration audits?

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  • Apache configuration file visualization/testing

    - by Matt Holgate
    Is there a tool available (or a debug mode built into Apache) that will allow me to interactively test and explain an Apache configuration for a given request? In particular, I'd like to be able to see which directives will apply when requesting a specific URL. For example, the output for the URL http://myserver.com/foo/bar/bar.html might look something like: Allow from 192.168.0.3 <-- From <Location /foo/bar> in myserver.com vhost Require valid user <-- From <Directory /var/www/foo> in global configuration Satisfy any <-- From <File bar.html> in global configuration [Background: why do I want this? The apache merging rules for configuration directives are quite complex to get right. It would be great to have a tool which allows you to check that your rules are doing exactly what you want, and would be a good learning tool]. If there isn't such a tool, is there a debug option in Apache that will log such information for each incoming request?

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  • Install Oracle Configuration Manager's Standalone Collector

    - by Get Proactive Customer Adoption Team
    Untitled Document The Why and the How If you have heard of Oracle Configuration Manager (OCM), but haven’t installed it, I’m guessing this is for one of two reasons. Either you don’t know how it helps you or you don’t know how to install it. I’ll address both of those reasons today. First, let’s take a quick look at how My Oracle Support and the Oracle Configuration Manager work together to gain a good understanding of what their differences and roles are before we tackle the install.   Oracle Configuration Manger is the tool that actually performs the data collection task. You deploy this lightweight piece of software into your system to collect configuration information about the system and OCM uploads that data to Oracle’s customer configuration repository. Oracle Support Engineers then have the configuration data available when you file a service request. You can also view the data through My Oracle Support. The real value is that the data Oracle Configuration Manager collects can help you avoid problems and get your Service Requests solved more quickly. When you view the information in My Oracle Support’s user interface to OCM, it may help you avoid situations that create problems. The proactive tools included in Oracle Configuration Manager help you avoid issues before they occur. You also save time because you didn’t need to open a service request. For example, you can use this capability when you need to compare your system configuration at two points in time, or monitor the system health. If you make the configuration data available to Oracle Support Engineers, when you need to open a Service Request the data helps them diagnose and resolve your critical system issues more quickly, which means you get answers more quickly too. Quick Installation Process Overview Before we dive into the step-by-step details, let me provide a quick overview. For some of you, this will be all you need. Log in to My Oracle Support and download the data collector from Collector tab. If you don’t see the Collector tab, click the More tab gain access. On the Collector tab, you will find a drop-down list showing which platforms are available. You can also see more ways to the Collector can help you if you click through the carousel of benefits. After you download the software for your platform, use FTP to move that file (.zip) from your PC to the server that hosts the Oracle software. Once you have that file on the server, locate the $ORACLE_HOME directory, and unzip the file within that directory. You can then use the command line tool to start the installation process. The installation process requires the My Oracle Support credential (Support Identifier, username, and password) Proxy specification (Host IP Address, Port number, username and password) Installation Step-by-Step Download the collector zip file from My Oracle Support and place it into your $Oracle_Home Unzip the zip file you downloaded from My Oracle Support – this will create a directory named CCR with several subdirectories Using the command line go to “$ORACLE_HOME/CCR/bin” and run the following command “setupCCR” Provide your My Oracle Support credential: login, password, and Support Identifier The installer will start deploying the collector application You have installed the Collector Post Installation Now that you have installed successfully, the scheduler is ready to collect configuration information for the software available in your Oracle Home. By default, the first collection will take place the day after the installation. If you want to run an instrumentation script to start the configuration collection of your Oracle Database server, E-Business Suite, or Enterprise Manager, you will find more details on that in the Installation and Administration Guide for My Oracle Support Configuration Manager. Related documents available on My Oracle Support Oracle Configuration Manager Installation and Administration Guide [ID 728989.5] Oracle Configuration Manager Prerequisites [ID 728473.5] Oracle Configuration Manager Network Connectivity Test [ID 728970.5] Oracle Configuration Manager Collection Overview [ID 728985.5] Oracle Configuration Manager Security Overview [ID 728982.5] Oracle Software Configuration Manager: Disconnected Mode Collection [ID 453412.1]

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  • Handling Configuration Changes in Windows Azure Applications

    - by Your DisplayName here!
    While finalizing StarterSTS 1.5, I had a closer look at lifetime and configuration management in Windows Azure. (this is no new information – just some bits and pieces compiled at one single place – plus a bit of reality check) When dealing with lifetime management (and especially configuration changes), there are two mechanisms in Windows Azure – a RoleEntryPoint derived class and a couple of events on the RoleEnvironment class. You can find good documentation about RoleEntryPoint here. The RoleEnvironment class features two events that deal with configuration changes – Changing and Changed. Whenever a configuration change gets pushed out by the fabric controller (either changes in the settings section or the instance count of a role) the Changing event gets fired. The event handler receives an instance of the RoleEnvironmentChangingEventArgs type. This contains a collection of type RoleEnvironmentChange. This in turn is a base class for two other classes that detail the two types of possible configuration changes I mentioned above: RoleEnvironmentConfigurationSettingsChange (configuration settings) and RoleEnvironmentTopologyChange (instance count). The two respective classes contain information about which configuration setting and which role has been changed. Furthermore the Changing event can trigger a role recycle (aka reboot) by setting EventArgs.Cancel to true. So your typical job in the Changing event handler is to figure if your application can handle these configuration changes at runtime, or if you rather want a clean restart. Prior to the SDK 1.3 VS Templates – the following code was generated to reboot if any configuration settings have changed: private void RoleEnvironmentChanging(object sender, RoleEnvironmentChangingEventArgs e) {     // If a configuration setting is changing     if (e.Changes.Any(change => change is RoleEnvironmentConfigurationSettingChange))     {         // Set e.Cancel to true to restart this role instance         e.Cancel = true;     } } This is a little drastic as a default since most applications will work just fine with changed configuration – maybe that’s the reason this code has gone away in the 1.3 SDK templates (more). The Changed event gets fired after the configuration changes have been applied. Again the changes will get passed in just like in the Changing event. But from this point on RoleEnvironment.GetConfigurationSettingValue() will return the new values. You can still decide to recycle if some change was so drastic that you need a restart. You can use RoleEnvironment.RequestRecycle() for that (more). As a rule of thumb: When you always use GetConfigurationSettingValue to read from configuration (and there is no bigger state involved) – you typically don’t need to recycle. In the case of StarterSTS, I had to abstract away the physical configuration system and read the actual configuration (either from web.config or the Azure service configuration) at startup. I then cache the configuration settings in memory. This means I indeed need to take action when configuration changes – so in my case I simply clear the cache, and the new config values get read on the next access to my internal configuration object. No downtime – nice! Gotcha A very natural place to hook up the RoleEnvironment lifetime events is the RoleEntryPoint derived class. But with the move to the full IIS model in 1.3 – the RoleEntryPoint methods get executed in a different AppDomain (even in a different process) – see here.. You might no be able to call into your application code to e.g. clear a cache. Keep that in mind! In this case you need to handle these events from e.g. global.asax.

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  • Does WCF always use SOAP to send information over your binding?

    - by SLC
    I understand you can choose from a range of bindings, such as TCP, HTTP, HTTPS etc. Am I correct in thinking it always uses SOAP to send data over this connection? I am watching a guide to WCF and it is talking about how exceptions are serialized into SOAP and sent to the client. I would have thought that not all bindings would use SOAP to send data, so I am a bit confused about how it works. Although I understand the fundamentals of WCF, how to set up services and use a proxy on the client, it doesn't seem to have explained exactly how the data is packaged up to send. Perhaps the answer is obvious, that it just uses XML / SOAP, but I would love to know for sure!

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  • How to limit a request execution time of WCF service?

    - by Kamarey
    Is there something in WCF configuration that defines a timeout for executing a request at service side? E.g. WCF service will stop executing request after some time period. I have a service which make some work depending on client input. In some cases a such call may take too much time. I want to limit the execution time of such requests on service side, not client one using SendTimeout. I know about OperationTimeout property, but it doesn't abort the service request, it just tells a client that the request is timed out.

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  • Create kickstart configuration file from existing configuration.

    - by ÜMineiro
    Is there a script or another way to automatically generate a kickstart configuration file from the system state of an existing server so that the file can be use to replicate (not clone) the configuration of the system in another install? I know that the anaconda-ks.cfg file is stored on the /root dir. but the system in question have been extensively changed since it's installation, and the file is of no use now.

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  • Linq to SQl over WCF Timesout after several calls

    - by Redeemed1
    I have a L2S Repository class which instantiates the L2S DataContext in its constructor. The repository is instantiated at run time (using Unity) in a service hosted in IIS with WCF. When I run up the client MVC applicaton the calls to the backend WCF service work for a while and then timeout. I suspected perhaps a database issue as I was depending on IIS garbage collection to dispose of unused DataContext instances in the IIS host but when I checked the characteristics of the problem I notice the following: The client makes the call to WCF but the WCF service does not respond. Next, the client times out Some time later (several minutes) the service actually executes the request by instantiating the repository and servicing the call. I have checked both client and server traces logs and only the client shows WCF errors (the timeout error). Where should I look? Is it something in WCF or is L2S possibly blocking with unfreed conenctions, resources etc.? Many thanks Brian

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  • WCF - Compact Framework - Pull data from mobile client

    - by jagse
    Hello guys, I want to communicate xml serialized objects from the server to the client and the other way arround. Now it is (probably) easy to invoke methods from a mobile client (compact framework) using WCF, but is there a way so that the server can invoke methods on the client side or some other way to pull data from the client? I know that callback contracts are not available in the compact framework as you can see here: http://blogs.msdn.com/andrewarnottms/archive/2007/09/13/calling-wcf-services-from-netcf-3-5-using-compact-wcf-and-netcfsvcutil-exe.aspx Originally I thought of socket programming and of developing this by myself, then someone here mentioned WCF. But it seems like WCF only would work in a non mobile environment as I need callbacks. Anyone can help me with this? Is it possible to develop a two way communication with a desktop server and multiple mobile clients using WCF, or will I have to do socket programming? Thanks for any advice or any kind of help!

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  • Why is my WCF Rest Service on IIS7 Authenticating TWICE!?!?

    - by TheAggie
    Ok, if someone could shed some light on this for me, I would greatly appreciate it. So here we go. I had a rest service running fine the other day but after I accidentally overwrote the web.config all hell broke loose. I've spent the past day and a half trying to sort things out but I can't seem to figure out what is missing or misplaced. So, I've designed this service around WCF Rest Contrib (http://wcfrestcontrib.codeplex.com)'s authentication process. Now, I can get this working fine on my localhost w/ the current web.config (minus the endpoint entry) but once I upload it to discountasp and select "basic authorization" in the ISS7 Manager, it appears that I'm getting authenticated twice! Once using my discount asp.net user/pass and then the next time using the application user/pass. Unfortunately I only provide one set of credentials and don't want to hard code my discountasp account info into the app. Like I said before, this worked fine a few days ago. Anyway. here is my web.config as it is now: <?xml version="1.0"?> <configuration> <connectionStrings> <add name="SQL2008_ConnectionString" connectionString="Data Source=sql2k8xx.discountasp.net;Initial Catalog=SQL2008_xx;Persist Security Info=True;User ID=SQL2008_xx_user;Password=myPass" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web> <httpRuntime maxRequestLength="204800" executionTimeout="3600"/> <compilation debug="true"> <assemblies> <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> </assemblies> </compilation> <httpModules> <add name="ServiceAnonymityModule" type="WcfRestContrib.Web.ServiceAnonymityModule, WcfRestContrib"/> </httpModules> </system.web> <system.codedom> <compilers> <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5"/> <providerOption name="WarnAsError" value="false"/> </compiler> </compilers> </system.codedom> <system.webServer> <validation validateIntegratedModeConfiguration="false"/> <modules> <remove name="ServiceAnonymityModule"/> <add name="ServiceAnonymityModule" type="WcfRestContrib.Web.ServiceAnonymityModule, WcfRestContrib"/> </modules> <handlers> <remove name="WebServiceHandlerFactory-Integrated"/> </handlers> </system.webServer> <system.diagnostics> <trace autoflush="true" /> </system.diagnostics> <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="false"> <baseAddressPrefixFilters> <add prefix="http://www.mydomain.com/myServiceBaseAddress"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> <extensions> <behaviorExtensions> <add name="webAuthentication" type="WcfRestContrib.ServiceModel.Configuration.WebAuthentication.ConfigurationBehaviorElement, WcfRestContrib, Version=1.0.5.0, Culture=neutral, PublicKeyToken=89183999a8dc93b5"/> <add name="errorHandler" type="WcfRestContrib.ServiceModel.Configuration.ErrorHandler.BehaviorElement, WcfRestContrib, Version=1.0.5.0, Culture=neutral, PublicKeyToken=89183999a8dc93b5"/> <add name="webFormatter" type="WcfRestContrib.ServiceModel.Configuration.WebDispatchFormatter.ConfigurationBehaviorElement, WcfRestContrib, Version=1.0.5.0, Culture=neutral, PublicKeyToken=89183999a8dc93b5"/> <add name="webErrorHandler" type="WcfRestContrib.ServiceModel.Configuration.WebErrorHandler.ConfigurationBehaviorElement, WcfRestContrib, Version=1.0.5.0, Culture=neutral, PublicKeyToken=89183999a8dc93b5"/> </behaviorExtensions> </extensions> <bindings> <customBinding> <binding name="HttpStreamedRest"> <httpTransport maxReceivedMessageSize="209715200" manualAddressing="true" /> </binding> <binding name="HttpsStreamedRest"> <httpsTransport maxReceivedMessageSize="209715200" manualAddressing="true" /> </binding> </customBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="Rest"> <webAuthentication requireSecureTransport="false" authenticationHandlerType="WcfRestContrib.ServiceModel.Dispatcher.WebBasicAuthenticationHandler, WcfRestContrib" usernamePasswordValidatorType="MyLibrary.Runtime.SecurityValidator, MyLibrary" source="MyRESTServiceRealm"/> <webFormatter> <formatters defaultMimeType="application/xml"> <formatter mimeTypes="application/xml,text/xml" type="WcfRestContrib.ServiceModel.Dispatcher.Formatters.PoxDataContract, WcfRestContrib"/> <formatter mimeTypes="application/json" type="WcfRestContrib.ServiceModel.Dispatcher.Formatters.DataContractJson, WcfRestContrib"/> <formatter mimeTypes="application/x-www-form-urlencoded" type="WcfRestContrib.ServiceModel.Dispatcher.Formatters.FormUrlEncoded, WcfRestContrib"/> </formatters> </webFormatter> <errorHandler errorHandlerType="WcfRestContrib.ServiceModel.Web.WebErrorHandler, WcfRestContrib"/> <webErrorHandler returnRawException="true" logHandlerType="MyLibrary.Runtime.LogHandler, MyLibrary" unhandledErrorMessage="An error has occured processing your request. Please contact technical support for further assistance."/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> So, whenever I upload this and change the ISS setting to Basic Authentication, it looks like it is trying to use the default handler for authentication as if I try to enter my web app user/pass, I get an error screen which has the following detailed information about the moduel/handler Detailed Error Information Module: IIS Web Core Notification: AuthenticateRequest Handler: svc-ISAPI-2.0 Error Code: 0x80070005 Requested URL: http://www.mydomain.com:80/MyService.../MyService.svc Physical Path: E:\web\xxxxxx\htdocs\MyServiceBaseAddress\MyService.svc Logon Method: Not yet determined Logon User: Not yet determined Now for the fun stuff... i tried providing my discountasp.net account username/password for kicks and sure enough it responded properly for any [OperationContract] which doesn't have [OperationAuthentication] defined (which is only one or two of the operations I have). I thought this was strange, so I looked at fiddler and saw something interesting. Whenever I try request a procedure with [OperationAuthentication] defined and provide my discountasp.net username/pass I get two different "WWW-Authenticate" headers back in Fiddler: WWW-Authenticate: Basic realm="MyRESTServiceRealm" WWW-Authenticate: Basic realm="www.mydomain.com" On the other hand, if I try to access the same procedures with only my application's user/pass, I only get the site's header: WWW-Authenticate: Basic realm="www.mydomain.com" My hypothesis is that for some reason I'm having to pass through the default "Basic Authorization" layer set by IIS before I can get to the application's "Custom Basic Authorization" layer. After verifying this by created an identical user/pass for my service that I use for my discountasp.net account, I was able to successfully pass both layers of authentication without any issues... so I think I can conclude that this is indeed the issue. Now how do I disable the default one? Do I need to do this in the IIS Manager, or in the web.config? Anyway, I have absolutely no idea how this is possible or what I need to do to resolve the issue, but I know that something is seriously out of whack. Any suggestions would be greatly appreciated! Thanks.

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  • Allowing Access to HttpContext in WCF REST Services

    - by Rick Strahl
    If you’re building WCF REST Services you may find that WCF’s OperationContext, which provides some amount of access to Http headers on inbound and outbound messages, is pretty limited in that it doesn’t provide access to everything and sometimes in a not so convenient manner. For example accessing query string parameters explicitly is pretty painful: [OperationContract] [WebGet] public string HelloWorld() { var properties = OperationContext.Current.IncomingMessageProperties; var property = properties[HttpRequestMessageProperty.Name] as HttpRequestMessageProperty; string queryString = property.QueryString; var name = StringUtils.GetUrlEncodedKey(queryString,"Name"); return "Hello World " + name; } And that doesn’t account for the logic in GetUrlEncodedKey to retrieve the querystring value. It’s a heck of a lot easier to just do this: [OperationContract] [WebGet] public string HelloWorld() { var name = HttpContext.Current.Request.QueryString["Name"] ?? string.Empty; return "Hello World " + name; } Ok, so if you follow the REST guidelines for WCF REST you shouldn’t have to rely on reading query string parameters manually but instead rely on routing logic, but you know what: WCF REST is a PITA anyway and anything to make things a little easier is welcome. To enable the second scenario there are a couple of steps that you have to take on your service implementation and the configuration file. Add aspNetCompatibiltyEnabled in web.config Fist you need to configure the hosting environment to support ASP.NET when running WCF Service requests. This ensures that the ASP.NET pipeline is fired up and configured for every incoming request. <system.serviceModel>     <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> </system.serviceModel> Markup your Service Implementation with AspNetCompatibilityRequirements Attribute Next you have to mark up the Service Implementation – not the contract if you’re using a separate interface!!! – with the AspNetCompatibilityRequirements attribute: [ServiceContract(Namespace = "RateTestService")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class RestRateTestProxyService Typically you’ll want to use Allowed as the preferred option. The other options are NotAllowed and Required. Allowed will let the service run if the web.config attribute is not set. Required has to have it set. All these settings determine whether an ASP.NET host AppDomain is used for requests. Once Allowed or Required has been set on the implemented class you can make use of the ASP.NET HttpContext object. When I allow for ASP.NET compatibility in my WCF services I typically add a property that exposes the Context and Request objects a little more conveniently: public HttpContext Context { get { return HttpContext.Current; } } public HttpRequest Request { get { return HttpContext.Current.Request; } } While you can also access the Response object and write raw data to it and manipulate headers THAT is probably not such a good idea as both your code and WCF will end up writing into the output stream. However it might be useful in some situations where you need to take over output generation completely and return something completely custom. Remember though that WCF REST DOES actually support that as well with Stream responses that essentially allow you to return any kind of data to the client so using Response should really never be necessary. Should you or shouldn’t you? WCF purists will tell you never to muck with the platform specific features or the underlying protocol, and if you can avoid it you definitely should avoid it. Querystring management in particular can be handled largely with Url Routing, but there are exceptions of course. Try to use what WCF natively provides – if possible as it makes the code more portable. For example, if you do enable ASP.NET Compatibility you won’t be able to self host a WCF REST service. At the same time realize that especially in WCF REST there are number of big holes or access to some features are a royal pain and so it’s not unreasonable to access the HttpContext directly especially if it’s only for read-only access. Since everything in REST works of URLS and the HTTP protocol more control and easier access to HTTP features is a key requirement to building flexible services. It looks like vNext of the WCF REST stuff will feature many improvements along these lines with much deeper native HTTP support that is often so useful in REST applications along with much more extensibility that allows for customization of the inputs and outputs as data goes through the request pipeline. I’m looking forward to this stuff as WCF REST as it exists today still is a royal pain (in fact I’m struggling with a mysterious version conflict/crashing error on my machine that I have not been able to resolve – grrrr…).© Rick Strahl, West Wind Technologies, 2005-2011Posted in ASP.NET  AJAX  WCF  

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  • Is it possible to force the WCF test client to accept a self-signed certificate?

    - by Lawrence Johnston
    I have a WCF web service running in IIS 7 using a self-signed certificate (it's a proof of concept to make sure this is the route I want to go). It's required to use SSL. Is it possible to use the WCF Test Client to debug this service without needing a non-self-signed certificate? When I try I get this error: Error: Cannot obtain Metadata from https:///Service1.svc If this is a Windows (R) Communication Foundation service to which you have access, please check that you have enabled metadata publishing at the specified address. For help enabling metadata publishing, please refer to the MSDN documentation at http://go.microsoft.com/fwlink/?LinkId=65455.WS-Metadata Exchange Error URI: https:///Service1.svc Metadata contains a reference that cannot be resolved: 'https:///Service1.svc'. Could not establish trust relationship for the SSL/TLS secure channel with authority ''. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. The remote certificate is invalid according to the validation procedure.HTTP GET Error URI: https:///Service1.svc There was an error downloading 'https:///Service1.svc'. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. The remote certificate is invalid according to the validation procedure.

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  • Can a WCF Service provide publish/subscribe activity to a Linux-based C++ client application?

    - by Jeremy Roddingham
    I have a WCF service written to provide certain functionality to intranet-based clients. This is easy when a client is running Windows. I want to implement the same functionality for my Windows clients that is available to my linux clients. My questions are? How can I communicate to a linux c++ based client (supporting callback operations for a publish subscribe) type situation? I am aware of using SOAP over the HTTPBinding but is that the only way (does not support callbacks I believe)? Would the same apply if I were using TCPBinding on the service-side? Currently, the service is set up using TCP but what are my options for the linux client communcation? I read somewhere that messages can also be sent (via webservices I believe) in XML rather than SOAP? Which would be a better approach or how to determine which is a better approach? I am trying to understand the options I would have for a WCF data service if I wanted to communicate with it from a linux client. I appreciate all your help. Thank You, Jeremy

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  • WCF Service in Windows Services

    - by sivakumar
    I create WCF service library and i test that working fine on WCF Test client(default). when i host the WCF service in winodws service that time i got the error. I am using windows XP sp3, .Net 3.5 and Visual Studio 2008. i got error. Error opening host : HTTP could not register URL "http://+:8731/WCFServerDLL/Service1/." Your process does not have access rights to this namespace (see "http://go.microsoft.com/fwlink/?LinkId=70353" for details). the above link for microsoft i implement the httpcfg. Here i run the "httpcfg.exe set urlacl /u http://localhost:8731/WCFServerDLL/Service1/ /a" i get the result HttpSetServiceConfiguration completed with 0. what is the problem i got same error. can you give me a suggation.

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  • Working WCF WebServices with NLB server

    - by gguth
    Im starting the architecture of a new project using WCF, but im not the right person to make some network considerations, so im doing some research but cannot find the answers to these questions: We´ll host the WCF service in a common Windows Service app in 2 servers and we´ll have another server to make the Load-Balancing job using the WNLB. The fact that we are hosting the WCF in a Windows Service app can disturb the NLB job? Before my research i thought the load balancing was tought to configure, but with NLB it seems to be very simple, its really that simple? Note: The binding will be basicHttpBinding

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  • Windows Server Configuration Management Best Practices

    - by Anton Gogolev
    Chef/Pupper/Ansible are cool and all, but they are second-class citizens on Windows at best. We have a bunch of "snowflake" (one of a kind) machines (baremetal and virtual) that nobody really know what's going on with. What I want is to start establishing basic configuration management for said servers, starting from installing Windows, installing and enabling various Roles and Features, setting up Services, Shares, Users and deploying webapps. PowerShell DSC looks promising, but it's not yet here and appears to be over-engineered, Puppet and the like are again not first-class. There's a bunch of tooks and TLAs like Windows ADK, DISM, OCSetup, etc. and it seems to me that the "Configuration Management" story on Windows is not precisely rainbows and unicorns. What I want is a Puppet/Chef-like, lightweight tool (no System Center Configuration Management, please) which would allow us to "version-control our server infrastructure" and bring all the benefits of CM. So, where do I look for the tool that does this kind of thing?

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