About WCF REST service

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Hello!
I Created a REST service used by WCF,Like This:
Service1.cs

C#

namespace WcfRestService1
{
    [ServiceContract]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
    public class Service1
    {
        [WebGet(UriTemplate = "")]
        public List<SampleItem> GetCollection()
        {
            return new List<SampleItem>() { new SampleItem() { Id = 1, StringValue = "Hello" } };
        }
        [WebInvoke(UriTemplate = "", Method = "POST")]
        public SampleItem Test(SampleItem instance)
        {
            return new SampleItem() { Id = 123, StringValue = instance.StringValue };
        }
    }
}

SampleItem.cs

C#

namespace WcfRestService1
{
    public class SampleItem
    {
        public int Id { get; set; }
        public string StringValue { get; set; }
    }
}

When I use the POST method ,it has some error :
Request Error
The server encountered an error processing the request. Please see the service help page for constructing valid requests to the service

My english is poor,so sorry i can`t say more!
Best wishes!
You can download my code from here

Posted 6-Jul-10 23:05pm

艾绍荣

Updated 6-Jul-10 23:35pm

v3

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helianthus87 · Answer 1 · 2010-07-07T22:42:00

I haven't much experience in WCF but first thing i found wrong here is SampleItem class.

You can only send basic types throgh services so your class cannot be returned in service method. To do this try something like this:

C#

namespace WcfRestService1
{
    [DataContract]
    public class SampleItem
    {
       [DataMember]
        public int Id { get; set; }
       [DataMember]
        public string StringValue { get; set; }
    }
}

Where [DataContract] defines any object sending throgh service, and [DataMember] for each basic type field of certain object.

I'm not sure if this everything to make it work but you need things i mentioned for sure.

艾绍荣 · Answer 2 · 2010-07-09T04:08:00

First! Thank helianthus87 !
But my Problems still exist,I test the code like here:
Service1.cs

C#

...
[WebInvoke(UriTemplate = "", Method = "POST")]
public string Test(string instance)
{
    return instance;
}
...

When I POST the URL http://localhost/WcfRestService1 and use <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">String content</string> for request_body.
It is not difficult ,but the error is still exist!
VS2010 &.net 4 & win 7

About WCF REST service

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