private void sendPDFFile(string strDocType)
{
    RestClient client = null;
    RestRequest request = null;
    IRestResponse response = null;
 
    string strURL = "https://" + getHost() + "/APEX/Service/APEXPublicServer.svc/user/login";
 
    // Password has to be hashed.
    // New convention uses a Salt value from the user record
 
    string strSalt = GetSalt(tbUserName.Text);
    string strPassword = tbPassword.Password.ToString();
 
    string strHashedPassword = HashPassword(strPassword, strSalt);
 
    string strParms = "{\n\t\"user_name\" : \"";
    strParms += tbUserName.Text;
    strParms += "\",\n\t\"password\" : \"";
    strParms += strHashedPassword;
    strParms += "\"\n}";
 
    client = new RestClient(strURL);
    request = new RestRequest(Method.POST);
 
    request.AddHeader("Cache-Control", "no-cache");
    request.AddHeader("Content-Type", "application/json");
 
    request.AddParameter("Login", strParms, ParameterType.RequestBody);
    response = client.Execute(request);
 
    if (response.IsSuccessful)  // Successful login and token has been received
    {
        var jsonResult1 = JsonConvert.DeserializeObject<dynamic>(response.Content);
        string token = jsonResult1.access_token;
 
        strURL = null;
        client = null;
        request = null;
        response = null;
 
        string strPDFFile = null;
 
        if (strDocType ==  "MOU")
        {
            strPDFFile = tbMOUFile.Text;
        }
        else
        {
            strPDFFile = tbCOIFile.Text;
        }
 
        byte[] bytePDF = File.ReadAllBytes(strPDFFile);
 
        strURL = "https://" + getHost() + "/APEX/Service/APEXPublicServer.svc/postDocument";
        strURL = strURL + "?" + "documentType=" + strDocType;
        strURL = strURL + "&" + "requestID=" + tbRequestID.Text;
 
        client = new RestClient(strURL);
        request = new RestRequest(Method.POST);
 
        request.AddHeader("Cache-Control", "no-cache");
        request.AddHeader("access_token", token);
        request.AddHeader("content-type", "application/pdf");
        request.AddParameter("undefined", bytePDF, ParameterType.RequestBody);
        response = client.Execute(request);
 
        if (response.IsSuccessful)
        {
            var jsonResult2 = JsonConvert.DeserializeObject<dynamic>(response.Content);
 
            string strResult = jsonResult2.result;
        }
    }
 
    return;
}