I'm trying to do a simple Azure Function to learn about it. There will be 3 functions:
I've been able to do the first and the third ones. But I can't pass the parameter by POST. I've looked for examples but I couldn't run them with success. The client app is a Windows Forms one.
Could anyone show me an example anout how to pass parameters by POST to the function and how to read them?
Thank's in advance
EDIT:
Here's the code to pass the parameters by GET (this is working fine):
private void button2_Click(object sender, EventArgs e)
{
string cadena = lsql1.Text + "?notas=" + tNotas.Text;
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(cadena);
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res.StatusCode == HttpStatusCode.OK)
{
MessageBox.Show("Grabado");
}
else
{
MessageBox.Show(res.StatusDescription);
}
}catch (WebException ex)
{
using (Stream s = ex.Response.GetResponseStream())
{
StreamReader sr = new StreamReader(s);
string text = sr.ReadToEnd();
text = text.Substring(1, text.Length - 2);
sr.Close();
text = text.Replace("\\", "");
text = "{" + text + "}";
Error mensajeError = JsonConvert.DeserializeObject<Error>(text);
MessageBox.Show(mensajeError.ExceptionMessage);
}
}
}
And here's the code to receive it and do the insert (this is working too):
[FunctionName("sql1")]
public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
try
{
log.Info("C# HTTP trigger function processed a request.");
var cnnString = "Server=SERVIDOR;Database=base_prueba;User ID =azure;Password=0000;Trusted_Connection=False;Encrypt=False;";
using (SqlConnection connection = new SqlConnection(cnnString))
{
connection.Open();
SqlCommand cmd = connection.CreateCommand();
DateTime fecha = DateTime.Today;
string notas = req.GetQueryNameValuePairs()
.FirstOrDefault(q => string.Compare(q.Key, "notas", true) == 0)
.Value;
// insert a log to the database
cmd.CommandText = "INSERT INTO Prueba_Azure (fecha, notas) VALUES ('" + fecha.ToString() + "', '" + notas + "')";
cmd.ExecuteNonQuery();
}
// Get request body
dynamic data = await req.Content.ReadAsAsync<object>();
return name == req.CreateResponse(HttpStatusCode.OK, "Done");
}
catch (Exception ex)
{
HttpResponseMessage res = req.CreateErrorResponse(HttpStatusCode.InternalServerError, ex);
return res;
}
}
What I'm looking for is to to this by POST
In case google took you here, this is how it's done in March 2019 (Azure Functions v3):
public static async void Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req,
ILogger log)
{
var content = await new StreamReader(req.Body).ReadToEndAsync();
MyClass myClass = JsonConvert.DeserializeObject<MyClass>(content);
}