using (var client = new WebClient())
{
client.Proxy = new WebProxy("Enter IP Address of proxy", Enter PORT);
client.Proxy.Credentials = new NetworkCredential(@"UserName", "Password");
client.Headers.Add("Content-Type:application/json");
client.Headers.Add("Accept:application/json");
var response = client.UploadString("Enter API URL", JsonConvert.SerializeObject(classobject));
}
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