Newtonsoft.cs

[HttpPost]
public async Task<IActionResult> GenerateImage([FromBody] input input)
{
var resp = new ResponseModel();
using (var client = new HttpClient())
{
   client.DefaultRequestHeaders.Clear();
   client.DefaultRequestHeaders.Authorization = 
        new AuthenticationHeaderValue("Bearer", APIKEY);
   var Message= await client.
         PostAsync("https://api.openai.com/v1/images/generations",
         new StringContent(JsonConvert.SerializeObject(input),
         Encoding.UTF8, "application/json"));if (Message.IsSuccessStatusCode)
   {
     var content = await Message.Content.ReadAsStringAsync();
     resp = JsonConvert.DeserializeObject<ResponseModel>(content);
   }
}
  return Json(resp);
}