Keith Elder nicely compares ASMX to WCF here. Check it out. Another comparison of ASMX and WCF can be found here – I don’t 100% agree with all the points there, but it might give you an idea. WCF is basically “ASMX on stereoids” – it can be all that ASMX could – plus a … Read more
The usage of Extending Encoders and Serializers (see http://msdn.microsoft.com/en-us/library/ms733092.aspx) or other methods of Extending WCF like usage of DataContractSerializerOperationBehavior is very interesting, but for your special problem there are easier solution ways. If you already use Message type to return the results an use WCF4 you can do something like following: public Message UpdateCity(string code, … Read more
Consuming a web service without a config file is very simple, as I’ve discovered. You simply need to create a binding object and address object and pass them either to the constructor of the client proxy or to a generic ChannelFactory instance. You can look at the default app.config to see what settings to use, … Read more
Using svcutil, you can create interfaces and classes (data contracts) from the WSDL. svcutil your.wsdl (or svcutil your.wsdl /l:vb if you want Visual Basic) This will create a file called “your.cs” in C# (or “your.vb” in VB.NET) which contains all the necessary items. Now, you need to create a class “MyService” which will implement the … Read more
“This error can arise if you are calling the service in a class library and calling the class library from another project.” In this case you will need to include the WS configuration settings into the main projects app.config if its a winapp or web.config if its a web app. This is the way to … Read more
You’ll need to implement a combination of custom ServiceHostFactory, ServiceHost and IInstanceProvider. Given a service with this constructor signature: public MyService(IDependency dep) Here’s an example that can spin up MyService: public class MyServiceHostFactory : ServiceHostFactory { private readonly IDependency dep; public MyServiceHostFactory() { this.dep = new MyClass(); } protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses) … Read more
That is not problem of IIS but the problem of WCF. WCF by default limits messages to 65KB to avoid denial of service attack with large messages. Also if you don’t use MTOM it sends byte[] to base64 encoded string (33% increase in size) => 48KB * 1,33 = 64KB To solve this issue you … Read more
Change the return type of your GetResults to be List<Person>. Eliminate the code that you use to serialize the List to a json string – WCF does this for you automatically. Using your definition for the Person class, this code works for me: public List<Person> GetPlayers() { List<Person> players = new List<Person>(); players.Add(new Person { … Read more
As tweakt said, Amazon S3 is a good model to work with. Their request signatures do have some features (such as incorporating a timestamp) that help guard against both accidental and malicious request replaying. The nice thing about HTTP Basic is that virtually all HTTP libraries support it. You will, of course, need to require … Read more
The advantage to this is that it is applied to every call. Create a class that implements IClientMessageInspector. In the BeforeSendRequest method, add your custom header to the outgoing message. It might look something like this: public object BeforeSendRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel) { HttpRequestMessageProperty httpRequestMessage; object httpRequestMessageObject; if (request.Properties.TryGetValue(HttpRequestMessageProperty.Name, out httpRequestMessageObject)) { httpRequestMessage = … Read more