AlphaVantage - Retrieve Prices

main.cs

using System;
using System.Collections.Generic;
using System.Linq;
using ServiceStack;
using ServiceStack.Text;

public class AlphaVantageData
{
      public DateTime Timestamp { get; set; }
      public decimal Open { get; set; }

      public decimal High { get; set; }
      public decimal Low { get; set; }

      public decimal Close { get; set; }
      public decimal Volume { get; set; }
}

// retrieve monthly prices for Microsoft
var symbol = "MSFT";
var apiKey = "demo"; // retrieve your api key from https://www.alphavantage.co/support/#api-key
var monthlyPrices = $"https://www.alphavantage.co/query?function=TIME_SERIES_MONTHLY&symbol={symbol}&apikey={apiKey}&datatype=csv"
                .GetStringFromUrl().FromCsv<List<AlphaVantageData>>();

monthlyPrices.PrintDump();

// some simple stats
var maxPrice = monthlyPrices.Max(u => u.Close);
var minPrice = monthlyPrices.Min(u => u.Close);

packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="System.Memory" version="4.5.2" targetFramework="net45" />
  <package id="ServiceStack.Text" version="5.5.0" targetFramework="net45" />
  <package id="ServiceStack.Client" version="5.5.0" targetFramework="net45" />
  <package id="ServiceStack.Interfaces" version="5.5.0" targetFramework="net45" />
</packages>