Handling HTTP 303 Redirect in HTTP

When working with IPWorks HTTP-based components, a server may return a 303 See Other response after a request is made. This indicates that the original request was processed, but the client must retrieve the result from a different URL provided by the server.

A 303 response includes a Location header that specifies the URL to request next using a GET operation. To handle this, check the response status and follow the redirect by issuing a GET request to the value of the Location header.

Http client = new Http();
try
{
  client.Post("http://www.a-server.com/some-resource");
}
catch (IPWorksHttpException ex)
{
  if (ex.Code == 151) // 151 means there was an error in the HTTP response.
  {
    if (client.StatusLine.Contains("303")) // 303 is the HTTP response error.
    {
      foreach(Header header in client.ParsedHeaders)
      {
        if(header.Field.ToLower() == "location") // Location has the URL to GET next.
        {
          client.Get(header.Value);
        }
      }
    }
  }
}

This ensures the client correctly retrieves the resource specified by the server after the redirect.