How to Get byte array properly from an Web Api Method in C#?

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I have the following controller method:

C#

[HttpPost]
[Route("SomeRoute")]
  public byte[] MyMethod([FromBody] string ID)
{
  byte[] mybytearray=db.getmybytearray(ID);//working fine,returning proper result.
  return mybytearray;
}

Now in the calling method(thats also another WebApi method!),I have written like this:

C#

private HttpClient client=new HttpClient ();
        private HttpResponseMessage response=new HttpResponseMessage ();
 byte[] mybytearray= null;
  response = client.GetAsync(string.Format("api/ABC/MyMethod/{0}", ID)).Result;
  if (response.IsSuccessStatusCode)
  {
    mybytearray= response.Content.ReadAsByteArrayAsync().Result;//Here is the problem
   }

Now, the problem is the byte arrayMyMethod is sending is of 528 bytes, but here after making ReadAsByteArrayAsync, the size becomes larger(706 bytes) and the values are also goofed up. Kind of banging my head against it, any help will be appreciated.

Thanks

Posted 26-May-14 22:14pm

avishekrc

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avishekrc · Accepted Answer · 2014-05-26T23:07:00

Got the solution:
instead of

C#

mybytearray= response.Content.ReadAsByteArrayAsync().Result;

I am doing:

C#

string result=null;
result = response.Content.ReadAsStringAsync().Result.Replace("\"", string.Empty);
 mybytearray=Convert.FromBase64String(result);

The key point is:
It was returning the byte array as base64encoded.