Upload a picture to oData web service

Question

In my oData webservice I have a business object called Ware . This Ware has a property of type Image called Picture . When I want to get the picture in an UWP application using HttpClient I just call http://localhost:8797/Data/Ware(2)/Picture . The code is as follows:

    using (var client = new HttpClient(handler))
    {
        client.BaseAddress = new Uri(DataServiceAddress + "Data/");
        client.DefaultRequestHeaders.Clear();
        client.DefaultRequestHeaders.Accept.Clear();
        using (HttpResponseMessage message = await client.GetAsync(url))
        {
            message.EnsureSuccessStatusCode();
            var content = (StreamContent)message.Content;
            return await content.ReadAsByteArrayAsync();
        }
    }

This is working as expected and return me the picture as byte of array. Now I want to upload new Picture by doing a 'PUT'. I've tried the code bellow:

    public static async Task PutImage(string url, byte[] image)
    {
         var handler = new HttpClientHandler { UseDefaultCredentials = true };
         using (var client = new HttpClient(handler))
         {
            client.BaseAddress = new Uri(DataServiceAddress + "Data/");
            client.DefaultRequestHeaders.Clear();
            client.DefaultRequestHeaders.Accept.Clear();
            using (var ms = new MemoryStream(image))
            {
                using (var message = await client.PutAsync(url, httpContent))
                {
                    message.EnsureSuccessStatusCode();
                }
            }
        }
    }

Then when I'm calling PutImage("Ware(2)/Picture", myFile.toByteArray()) , I'm getting Bad Request response. Interesting thing is that when I try PUT with Postman it's working fine. As you can see in the following picture I got 204 result and my picture has changed successfully.

Screenshot: Postman is successful sending the file with a 'PUT' verb to the odata server

Can anyone please help me with that?

This is the generated code by Postman:

    PUT /Data/Ware(2)/Picture HTTP/1.1
    Host: localhost:8797
    Authorization: Basic QWRtaW46
    Cache-Control: no-cache
    Postman-Token: 37827f09-8841-7ccb-c462-d488ef4c4e9d

    undefined

I did a lot of googling. But there is no hope. :(

Answer 1

Finally It's done :)

   public static async Task PutImage(string url, byte[] image)
   {
        var httpContent = new ByteArrayContent(image);

        var handler = new HttpClientHandler { UseDefaultCredentials = true };
        using (var client = new HttpClient(handler))
        {
            client.BaseAddress = new Uri(DataServiceAddress + "Data/");
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("*/*"));
            client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("gzip"));
            client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("deflate"));

            using (var request = new HttpRequestMessage(HttpMethod.Put, url) { Content = httpContent })
            {

                httpContent.Headers.ContentType = new MediaTypeHeaderValue("text/plain");
                using (var message = await client.SendAsync(request))
                {
                    message.EnsureSuccessStatusCode();
                }
            }
        }
    }

It's working fine.