private async Task CargarPublicaciones()
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("192.168.1.59");
//se debe declarar el metodo async
var request = await client.GetAsync("/api/Publicaciones");
if (request.IsSuccessStatusCode)
{
var responseJson = await request.Content.ReadAsStringAsync();
var response = JsonConvert.DeserealizeObject <List <Publicacion> >(responseJson);
listPublicacion.ItemSource = response;
}
}