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POIssue with object as parameter in REST API Service
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copied!<p>EDIT: Apparently what I have is working. I had been testing using the xml generated from the serialized object, which wasn't working. I was messing with it more just now and decided to try using the dynamic XML that I am creating (same as posted here), and it worked. I think maybe it was because when i was trying it that way before I wasn't using the same namespaces... However, how come using the xml from the serialized object doesn't work? I noticed it uses different namespace in the xml when it is created from the object. Why is that?</p> <p><strong>Original post:</strong> I am having an issue with passing a custom object to a REST API I'm creating. Right now I am just trying to test it by posting an object of type Lead to a WebInvoke method. My service is written with WCF. The Lead object is in a separate class library project that will by my business logic layer.</p> <p>I'm posting using a regular ASP .net page. You'll see in that section of code below that I tried building the xml in two ways, manually, and also by Serializing the object as xml and using that as the POST data. Neither work, and I'm getting this error: The remote server returned an error: (400) Bad Request.</p> <p>I know the service is configured correctly, as I'm able to call and get a response from the other WebInvoke method I have written, which is a GET method.</p> <p>Here is the releveant code: Service interface code:</p> <pre><code>[ServiceContract(Namespace = "http://www.mytestnamespace.com/test")] public interface IRESTService { [OperationContract] [WebInvoke(Method = "POST", UriTemplate = "leads", RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Xml)] string AddLead(Lead lead); [OperationContract] [WebInvoke(Method = "GET", UriTemplate = "lead/{id}", ResponseFormat = WebMessageFormat.Xml)] string LeadData(string id); } </code></pre> <p>Service code:</p> <pre><code>public class RESTService : IRESTService { public string AddLead(Lead lead) { return "AddLead Hit"; } public string LeadData(string id) { return "LeadData was hit, id=" + id; } } </code></pre> <p>Lead object Code:</p> <pre><code>[DataContract(Name="Lead", Namespace = "http://www.mytestnamespace.com/test")] public class Lead { [DataMember(Name="FirstName")] public string FirstName { get; set; } [DataMember(Name = "LastName")] public string LastName { get; set; } [DataMember(Name = "Email")] public string Email { get; set; } [DataMember(Name = "Phone")] public string Phone { get; set; } } </code></pre> <p>And finally the code i'm using on the aspx page to post the data:</p> <pre><code>try { Lead l = new Lead(); l.FirstName = "John"; l.LastName = "Doe"; l.Email = "John.Doe@gmail.com"; l.Phone = "5555551234"; XmlSerializer ser = new XmlSerializer(typeof(Lead)); StringWriter sw = new StringWriter(); ser.Serialize(sw, l); string s = sw.ToString(); /*XmlDocument doc = new XmlDocument(); XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "utf-8", null); XmlElement root = doc.CreateElement("Lead"); root.SetAttribute("xmlns", "http://www.mytestnamespace.com/test"); //root.SetAttribute("xmlns:xsd", "http://www.w3.org/2001/XMLSchema"); doc.InsertBefore(dec, doc.DocumentElement); doc.AppendChild(root); XmlElement firstName = doc.CreateElement("FirstName"); XmlElement lastName = doc.CreateElement("LastName"); XmlElement email = doc.CreateElement("Email"); XmlElement phone = doc.CreateElement("Phone"); firstName.AppendChild(doc.CreateTextNode("John")); lastName.AppendChild(doc.CreateTextNode("Doe")); email.AppendChild(doc.CreateTextNode("John.Doe@gmail.com")); phone.AppendChild(doc.CreateTextNode("8885551234")); root.AppendChild(firstName); root.AppendChild(lastName); root.AppendChild(email); root.AppendChild(phone);*/ HttpWebRequest req = (HttpWebRequest)WebRequest.Create(new Uri("http://localhost:54966/RESTService.svc/leads")); req.Method = "POST"; req.ContentType = "application/xml"; //byte[] formData = UTF8Encoding.UTF8.GetBytes(doc.InnerXml); byte[] formData = UTF8Encoding.UTF8.GetBytes(s); req.ContentLength = formData.Length; using (Stream post = req.GetRequestStream()) { post.Write(formData, 0, formData.Length); } string result = null; using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) { StreamReader reader = new StreamReader(resp.GetResponseStream()); result = reader.ReadToEnd(); } } catch (Exception exc) { throw exc; } </code></pre>

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