WCF service - OperationContract - string array

Question

I'm building WCF service where one OperationContact should consume string array on input.

The POST request is build from jQuery with $.toJSON function and looks like

    {"user":"77cae724-d5b3-412d-9499-2cfc175bf66f",
"data1":["ba3be5f2-c65d-4c21-86b1-829cad246746","604c53b1-1e24-42f7-8aba-93314eb0878e"],
"data2":"d15c3cf6-02c8-42f2-9753-ab2f5e10b21e",
"data3":["6449b58c-272c-4c98-a2fd-bd47ca248bb3","595fbefd-411e-40b1-afa1-f1f96495a8c1"]}

I create contract like:

[OperationContract]  
bool function1(string userGuid, List<string> userOrganization, List<string> userCostUnit, List<string> userGroup);

and

 [OperationContract]  
bool function1(string userGuid, string[] userOrganization, string[] userCostUnit, string[] userGroup);

But nothing seems to work. I just get 500 Internal server error. Is problem with input data (json data)?

Can you please tell me how should function deceleration looks like, to makes this work.

Check the web server logs for more info on the error causing the 500 response. — d91-jal
– d91-jal, Commented Oct 15, 2009 at 9:17

Eugene Osovetsky · Accepted Answer · 2009-10-15 19:14:39Z

2

Your contract doesn't match your JSON (for example, the JSON member is called "user" but you use "userGuid" in the contract).

You can do, for example:

[WebInvoke(RequestFormat = WebMessageFormat.Json)] [OperationContract] bool function1(Guid user, List data1, Guid data2, List data3);

You may also need to play with WebInvoke.BodyStyle to make this work - I think it should be "Wrapped".

answered Oct 15, 2009 at 19:14

Eugene Osovetsky

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1 Comment

AnzeR Over a year ago

I implement serializeObject function from this answer stackoverflow.com/questions/1184624/… but in fact it doesn't work with multiple select items :(

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