How to pass parameters by POST to an Azure function?

Question

I'm trying to do a simple Azure Function to learn about it. There will be 3 functions:

• 1 function to insert a row into a table of a database. This table will contain the current date and a string parameters typed by the user and passed by GET.
• 1 function similar to the previous one, but passing the parameter by POST.
• 1 function to read the table and show its content.

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

Answer 1

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);                      }