uri is too long when I try to send a base64 using xamarin forms - http

Question

I am working with xamarin.forms and System.Net.Http;
I am sending a photo using a post function which is this:
public static async Task<String> PostImagemAsync(User user)
{
using (var client = new HttpClient())
{
try
{
var values = new List<KeyValuePair<string, string>>(0);
values.Add(new KeyValuePair<string, string>("email", user.usua_login));
values.Add(new KeyValuePair<string, string>("senha", user.usua_senha));
values.Add(new KeyValuePair<string, string>("foto", user.cont_imagem));
values.Add(new KeyValuePair<string, string>("json", "1"));
var content = new FormUrlEncodedContent(values);
HttpResponseMessage response = await client.PostAsync("http://ws.neosuite.com.br/login.asmx/foto", content);
var json = response.Content.ReadAsStringAsync().Result;
json = json.Substring(json.IndexOf('['));
json = json.Substring(0, json.LastIndexOf(']') + 1);
var userImage = JsonConvert.DeserializeObject<List<User>>(json);
return userImage[0].cont_imagem;
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return null;
}
}
}
My image (foto) is a base64 And it does I get this error when I try to send it:
Invalid URI: The Uri string is too long.
How to solve that?

Answer 1

Without adding your POST content into url, add that to body using following code
var uri = new Uri (string.Format ("http://ws.neosuite.com.br/login.asmx/foto", string.Empty));
var json = JsonConvert.SerializeObject (user);//user object or you can create your own jason here
var content = new StringContent (json, Encoding.UTF8, "application/json");
var response = await client.PostAsync (uri, content);