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POSerializing Array of Objects to JSON in WCF to Comply with OpenSearch
 

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    <p>I'm trying to write an OpenSearch Suggestion service that complies with the OpenSearch spec.</p> <p><a href="http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions" rel="nofollow noreferrer">http://www.opensearch.org/Specifications/OpenSearch/Extensions/Suggestions </a></p> <p>This spec requires the service to return a JSON array with the first element being a string and the following elements being arrays of strings. I'm able to get it almost there by returning an array of strings (string[][]) and having WCF serialize this into JSON. However, in order to comply with the spec, I tried to return an array of objects (object[]), with the first one being a string, and the rest being arrays of strings (string[]).</p> <p>Whenever I try to return the array of objects, it doesn't work, such as this:</p> <p>From service:</p> <pre><code>[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class SuggestionService : ISuggestionService { public object[] Search(string searchTerms) { SearchSuggestions = new object[4]; SearchText = searchTerms; SearchSuggestions[0] = SearchText; Text = new string[10]; Urls = new string[10]; Descriptions = new string[10]; // Removed irrelevant ADO.NET code while (searchResultReader.Read() &amp;&amp; index &lt; 10) { Text[index] = searchResultReader["Company"].ToString(); Descriptions[index] = searchResultReader["Company"].ToString(); Urls[index] = "http://dev.localhost/Customers/EditCustomer.aspx?id=" + searchResultReader["idCustomer"]; index++; } SearchSuggestions[1] = Text; SearchSuggestions[2] = Descriptions; SearchSuggestions[3] = Urls; return SearchSuggestions; } [DataMember] public string SearchText { get; set; } [DataMember] public string[] Text { get; set; } [DataMember] public string[] Descriptions { get; set; } [DataMember] public string[] Urls { get; set; } [DataMember] public object[] SearchSuggestions { get; set; } } </code></pre> <p>Here's the entire interface:</p> <pre><code>[ServiceContract] public interface ISuggestionService { [OperationContract] [WebGet(UriTemplate = "/Search?q={searchTerms}", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)] object[] Search(string searchTerms); } </code></pre> <p>This causes the service to return "Error 324 (net::ERR_EMPTY_RESPONSE): Unknown error." This is the only error I've been able to get.</p> <p>Am I not able to use an array of objects to store one string and three arrays? What else could I do in order to use WCF to return the proper JSON that complies with this spec?</p> <p>EDIT: Added lots more of the code</p>
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