C# - 간단한 API 요청 & JSON 출력

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

using System.Net;
using Newtonsoft.Json.Linq;

namespace covidView
{
    public partial class Form1 : Form
    {
        private const string URL = "https://api.corona-19.kr/korea/beta/";
        private string api = "?serviceKey={Your_APIKEY}";
        public Form1()
        {
            InitializeComponent();

            Console.WriteLine("Hello world!");
            using (WebClient wc = new WebClient())
            {
                string res = new WebClient().DownloadString(URL + api);

                JObject json = JObject.Parse(res);

                Console.WriteLine(json["API"]);
            }
        }

    }
}

 

참고: 

https://fors.tistory.com/446

C# 주소에 요청 보내고 json 값 받기

https://stackoverflow.com/questions/22870624/convert-json-string-to-json-object-c-sharp

Convert JSON String to JSON Object c#