Skip to content
essegisolutions edited this page Jan 13, 2018 · 8 revisions

What TRANGE does?

This API returns the true range (TRANGE) values. The related REST API documentation is here


Including the TRANGE namespace

The very first thing to do before diving into TRANGE calls is to include the right namespace.


using Avapi.AvapiTRANGE

How to get a TRANGE object?

The TRANGE object is retrieved from the Connection object.

The snippet below shows how to get the Connection object:


...
IAvapiConnection connection = AvapiConnection.Instance
connection.Connect("Your Alpha Vantage API Key !!!!");
...

Once you got the Connection object you can extract the TRANGE from it.


...
Int_TRANGE trange = 
	connection.GetQueryObject_TRANGE();

Perform a TRANGE Synchronous Request

To perform a TRANGE request you have 2 options:

  1. The request with constants:

IAvapiResponse_TRANGE Query(string symbol,
		TRANGE_interval interval);

  1. The request without constants:

IAvapiResponse_TRANGE QueryPrimitive(string symbol,
		string interval);

Perform an TRANGE Asynchronous Request

To perform an TRANGE asynchronous request you have 2 options:

  1. The request with constants:

async Task<IAvapiResponse_TRANGE> QueryAsync(string symbol,
		TRANGE_interval interval);

  1. The request without constants:

async Task<IAvapiResponse_TRANGE> QueryAsync(string symbol,
		string interval);

Parameters

The parameters below are needed to perform the TRANGE request.

  • symbol: The name of the equity
  • interval: The time interval between two consecutive data points in the time series.

Please notice that the info above are copied from the official alphavantage documentation, that you can find here.


The request with constants

The request with constants implies the use of different enums:

  • TRANGE_interval

TRANGE_interval: The time interval between two consecutive data points in the time series.


public enum TRANGE_interval
{
	none,
	n_1min,
	n_5min,
	n_15min,
	n_30min,
	n_60min,
	daily,
	weekly,
	monthly
}


TRANGE Response

The response of a TRANGE request is an object that implements the IAvapiResponse_TRANGE interface.


public interface IAvapiResponse_TRANGE
{
    string RawData
    {
        get;
    }
    IAvapiResponse_TRANGE_Content Data
    {
        get;
    }
}

The IAvapiResponse_TRANGE interface has two members: RawData and Data.

  • RawData: represents the json response in string format.
  • Data: It represents the parsed response in an object implementing the interface IAvapiResponse_TRANGE_Content.

Complete Example of a Console App: Display the result of a TRANGE request by using the method Query (synchronous request)


using System;
using System.IO;
using Avapi.AvapiTRANGE;

namespace Avapi
{
    public class Example
    {
        static void Main()
        {
            // Creating the connection object
            IAvapiConnection connection = AvapiConnection.Instance;

            // Set up the connection and pass the API_KEY provided by alphavantage.co
            connection.Connect("Your Alpha Vantage API Key !!!!");

            // Get the TRANGE query object
            Int_TRANGE trange =
                connection.GetQueryObject_TRANGE();

            // Perform the TRANGE request and get the result
            IAvapiResponse_TRANGE trangeResponse = 
            trange.Query(
                 "MSFT",
                 Const_TRANGE.TRANGE_interval.n_1min);

            // Printout the results
            Console.WriteLine("******** RAW DATA TRANGE ********");
            Console.WriteLine(trangeResponse.RawData);

            Console.WriteLine("******** STRUCTURED DATA TRANGE ********");
            var data = trangeResponse.Data;
            if (data.Error)
            {
                Console.WriteLine(data.ErrorMessage);
            }
            else
            {
                Console.WriteLine("Symbol: " + data.MetaData.Symbol);
                Console.WriteLine("Indicator: " + data.MetaData.Indicator);
                Console.WriteLine("LastRefreshed: " + data.MetaData.LastRefreshed);
                Console.WriteLine("Interval: " + data.MetaData.Interval);
                Console.WriteLine("TimeZone: " + data.MetaData.TimeZone);
                Console.WriteLine("========================");
                Console.WriteLine("========================");
                foreach (var technical in data.TechnicalIndicator)
                {
                    Console.WriteLine("TRANGE: " + technical.TRANGE);
                    Console.WriteLine("DateTime: " + technical.DateTime);
                    Console.WriteLine("========================");
                }
            }
        }
    }
}

Complete Example of a Windows Form App: Display the result of a TRANGE request by using the method QueryAsync (asynchronous request)


using Avapi;
using Avapi.AvapiTRANGE
using System;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        private IAvapiConnection m_connection = AvapiConnection.Instance;
        private Int_TRANGE m_trange;
        private IAvapiResponse_TRANGE m_trangeResponse;

        public Form1()
        {
            InitializeComponent();
        }

        protected override void OnLoad(EventArgs e)
        {
            // Set up the connection and pass the API_KEY provided by alphavantage.co
            m_connection.Connect("Your Alpha Vantage Key");

            // Get the TRANGE query object
            m_trange = m_connection.GetQueryObject_TRANGE();

            base.OnLoad(e);
        }

        private async void TRANGEAsyncButton_Click(object sender, EventArgs e)
        {
            // Perform the TRANGE request and get the result
            m_trangeResponse = 
                await m_trange.QueryAsync(
                     "MSFT",
                     Const_TRANGE.TRANGE_interval.n_1min);

             // Show the results
            resultTextBox.AppendText("******** RAW DATA TRANGE ********" + "\n");
            resultTextBox.AppendText(m_trangeResponse.RawData + "\n");

            resultTextBox.AppendText("******** STRUCTURED DATA TRANGE ********" + "\n");
            var data = m_trangeResponse.Data;
            if (data.Error)
            {
                resultTextBox.AppendText(data.ErrorMessage + "\n");
            }
            else
            {
                resultTextBox.AppendText("Symbol: " + data.MetaData.Symbol + "\n");
                resultTextBox.AppendText("Indicator: " + data.MetaData.Indicator + "\n");
                resultTextBox.AppendText("LastRefreshed: " + data.MetaData.LastRefreshed + "\n");
                resultTextBox.AppendText("Interval: " + data.MetaData.Interval + "\n");
                resultTextBox.AppendText("TimeZone: " + data.MetaData.TimeZone + "\n");
                resultTextBox.AppendText("========================" + "\n");
                resultTextBox.AppendText("========================" + "\n");
                foreach (var technical in data.TechnicalIndicator)
                {
                    resultTextBox.AppendText("TRANGE: " + technical.TRANGE + "\n");
                    resultTextBox.AppendText("DateTime: " + technical.DateTime + "\n");
                    resultTextBox.AppendText("========================" + "\n");
                }
            }
        }
    }
}

Clone this wiki locally