Wcf post method, returns 400 bad request

Question

0.00/5 (No votes)

See more:

I see there are many answers to the same question but I am unable to resolve mine, can any one of you please go through my code and resolve my issue please. I have created a WCF Service as below The POST Method

Interface (iComplaints.cs)

C#

[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare,     ResponseFormat = WebMessageFormat.Json, UriTemplate = "/insertcomplaint")]
Stream InsertComplaint(ComplaintData data);

Class (Complaints.cs)

C#

public Stream InsertComplaint(ComplaintData data)
{
    //the code
}

DataContract class (ComplaintData)

C#

public class ComplaintData
{
   [DataMember]
    public string ComplaintID { get; set; }
    [DataMember]
    public string EntryBy { get; set; }
}

I have hosted the service locally and when i try to consume it using the below client method it's giving me 400 (Bad Request)

C#

void PostComplaint()
    {
        HttpWebRequest req = null;
        HttpWebResponse res = null;
            string url = "http://localhost:28522/Complaints.svc/insertcomplaint";

            ComplaintData iData = new ComplaintData();
            iData.ComplaintID = txtComplaintID.Text;
            iData.EntryBy = txtEntryBy.Text;

            req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "POST";
            req.ContentType = "application/json"; 
            req.Headers.Add("SOAPAction", url);

            using (var streamWriter = new StreamWriter(req.GetRequestStream()))
            {
                streamWriter.Write(iData);
            }

            res = (HttpWebResponse)req.GetResponse();
            using (var streamReader = new StreamReader(res.GetResponseStream()))
            {
                var result = streamReader.ReadToEnd();
                TextBox1.Text = result;
            }
    }

Web Config of the WCF Service

<service behaviorConfiguration="ServiceBehavior" name="Complaints">
    <endpoint address="" behaviorConfiguration="webHttp" binding="webHttpBinding" contract="IComplaints" />
   <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" />
  </service>

Please anyone help.

What I have tried:

With no success I tried changing the BodyStyle

C#

WebMessageBodyStyle.WrappedRequest

I also tried sending the json request as a string but that resulted in input paramater as null in the post method.

Posted 12-Nov-16 4:55am

NF Khan

Updated 12-Nov-16 23:04pm

v3

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

NF Khan · Accepted Answer · 2016-11-12T23:04:00

I solved this myself
In my client i changed from

C#

void PostComplaint()
    {
        HttpWebRequest req = null;
        HttpWebResponse res = null;
            string url = "http://localhost:28522/Complaints.svc/insertcomplaint";
 
            ComplaintData iData = new ComplaintData();
            iData.ComplaintID = txtComplaintID.Text;
            iData.EntryBy = txtEntryBy.Text;
 
            req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "POST";
            req.ContentType = "application/json"; 
            req.Headers.Add("SOAPAction", url);
 
            using (var streamWriter = new StreamWriter(req.GetRequestStream()))
            {
                streamWriter.Write(iData);
            }
 
            res = (HttpWebResponse)req.GetResponse();
            using (var streamReader = new StreamReader(res.GetResponseStream()))
            {
                var result = streamReader.ReadToEnd();
                TextBox1.Text = result;
            }
    }

to

C#

void PostComplaint()
    {
    string url = "http://localhost:28522/Complaints.svc/insertcomplaint";
               Uri uri = new Uri(url);

               req = (HttpWebRequest)WebRequest.Create(uri);
               req.Method = "POST";
               req.ContentType = "application/json";
               req.Headers.Add("SOAPAction", url);

//Commented
 //ComplaintData iData = new ComplaintData();
            //iData.ComplaintID = txtComplaintID.Text;
            //iData.EntryBy = txtEntryBy.Text;

//Added
               var iData = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(new { ComplaintID = txtComplaintID.Text, EntryBy = txtEntryBy.Text });
//
               using (var streamWriter = new StreamWriter(req.GetRequestStream()))
               {
                   streamWriter.Write(iData);
               }

               res = (HttpWebResponse)req.GetResponse();
               using (var streamReader = new StreamReader(res.GetResponseStream()))
               {
                   var result = streamReader.ReadToEnd();
                   TextBox1.Text = result;
               }
}