CODEWITHSUNDEEP
c#restasp.net-web-apipostman
user7768692
user7768692

Reputation: 76

REST error-The request contain entity body but no Content-Type header.The infered media type application/octet-stream is not support for this resource

I'm trying to send POST request. While sending via POSTMAN all goes well, then I try to send it by C# code:

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

var client = new RestClient(MY-URL);
var request = new RestRequest(Method.POST);
request.Credentials = new System.Net.NetworkCredential(ServerUsername, Password);
request.AddHeader("Cache-Control", "no-cache");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("undefined", My JSON Data, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);

I'm getting this error:

The request contains an entity body but no Content-Type header. The inferred media type 'application/octet-stream' is not supported for this resource

How can I solve it?

Upvotes: 4

Views: 23381

Answers (3)

jrap
jrap

Reputation: 364

In my case, I was using Fiddler and somehow I had an extra carriage return that I could not see within Fiddler.

Fiddler SHOWED this in my scratch pad:

POST https://mywebsite/?api-version=7.3 HTTP/1.1
AnotherHeader: 2413OL

But after pasting into Nodepad I saw this:

POST https://mywebsite/?api-version=7.3 HTTP/1.1

AnotherHeader: 2413OL

After removing the extra carriage return in Notepad and then pasting back into Fiddler's scratch pad, all is well and the 415 status code is gone.

Upvotes: 0

Mahsa Hassankashi
Mahsa Hassankashi

Reputation: 2139

Try to write:

Content-Type: application/json; charset=UTF-8"

Or add to your header:

Accept: application/json

Upvotes: 4

Nkosi
Nkosi

Reputation: 247363

Adding a parameter as body changes the content type of the request.

In your example

request.AddParameter("undefined", My JSON Data, ParameterType.RequestBody);

overrides the content type previously set.

If are you serializing an object model to send, then replace request.AddParameter with 

request.AddJsonBody(model);

which will serialize and include the appropriate header information

Otherwise you need to include type when adding the parameter

request.AddParameter("application/json", "My JSON Data", ParameterType.RequestBody);

Upvotes: 2

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