As part of a pretty large application I need to provide a REST Service that uploads an image. Since the whole application is .NET, I've been trying to find an working example of a WCF RESTFul Service that does that but couldn't (Which defines the whole configurations). There are handful of examples online but I couldn't (thanks to my lack of knowledge in WCF) make none of them work. (I keep getting exceptions thrown).
I'll be happy to get linked to a working one.
Please find a sample below:
On Server:
Interface:
[WebInvoke]
string PostImage(Stream stream);
My Implementation class:
public string PostImage(Stream stream)
{
byte[] buffer = new byte[10000];
stream.Read(buffer, 0, 10000);
FileStream f = new FileStream("C:\\temp\\sample.jpg", FileMode.OpenOrCreate);
f.Write(buffer, 0, buffer.Length);
f.Close();
stream.Close();
return "Recieved the image on server";
}
NOTE: Make sure that your WCF Service application app pools identity has write access to the c:\Temp location to write the file. Alternatively you can replace the logic to save the image to db or any other way you want it to.
My web.config on server:
<services>
<service name="XMLService.Service1" behaviorConfiguration="default">
<endpoint address="" behaviorConfiguration="web" binding="webHttpBinding" bindingConfiguration="RestBinding" name="Service1" contract="XMLService.IService1" />
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp />
</behavior>
<serviceBehaviors>
<behavior name="default">
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<webHttpBinding>
<binding name="RestBinding">
<readerQuotas maxStringContentLength="5242880" maxArrayLength="16384" maxBytesPerRead="4096" />
<security mode="None">
</security>
</binding>
</webHttpBinding>
Now on my client i have the following code:
var client = new RestClient();
client.BaseUrl = "http://localhost/XMLService/Service1.svc";
var request = new RestRequest(method) { DateFormat = DataFormat.Xml.ToString(), Resource = resourceUrl };
if(requestBody !=null)
request.AddParameter("objCompositeType", requestBody);
request.AddFile("stream", image, "Array.png");
var response = client.Execute(request);
string responseString;
if (response.StatusCode == HttpStatusCode.OK)
{
responseString = HttpUtility.HtmlDecode(response.Content);
}
else
{
responseString = response.StatusDescription + " --------------------" + HttpUtility.HtmlDecode(response.Content);
}
I am using a 3rd party tool RestSharp to post my request to the REST Service.
My request in fiddler looks as shown:
POST http://localhost/XMLService/Service1.svc/PostImage HTTP/1.1
Accept: application/json, application/xml, text/json, text/x-json, text/javascript, text/xml
User-Agent: RestSharp 102.0.0.0
Host: rajeshwin7
Content-Type: multipart/form-data; boundary=-----------------------------28947758029299
Content-Length: 2300
Accept-Encoding: gzip, deflate
Connection: Keep-Alive
-------------------------------28947758029299
Content-Disposition: form-data; name="stream"; filename="download.jpg"
Content-Type: application/octet-stream
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-------------------------------28947758029299--
And when i perform a POST of the above request i get the below response:
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 105
Content-Type: application/xml; charset=utf-8
Server: Microsoft-IIS/7.5
Set-Cookie: ASP.NET_SessionId=fdbg45tergdsfg434t; path=/; HttpOnly
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 27 Feb 2012 12:05:32 GMT
<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">Recieved the image on server</string>