Консольное приложение поиска - C#

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Формулировка задачи:

Дали задание по программированию: "Написать консольное приложение поиска музыкальных альбомов исполнителя. При вводе пользователем названия группы, программа должна запрашивать сервер в поисках списка её альбомов. При отсутствии соединения с сервером, список (если он был загружен ранее) должен подгружаться из локального кэша. Допускается использование любого сервера с любым API (рекомендуется сервис iTunes как не требующий авторизации). Для хранения кэша допускается использование любого носителя (файл, любая база данных). Допускается использование любых сторонних библиотек." Но я абсолютно не знаю как это сделать, даже с чего начать. Помогите, пожалуйста!

Решение задачи: «Консольное приложение поиска»

textual
Листинг программы 
  1. string json = "{\r\n \"resultCount\":33,\r\n \"results\": [\r\n{\"wrapperType\":\"artist\", \"artistType\":\"Arti" +
  2.     "st\", \"artistName\":\"The Beatles\", \"artistLinkUrl\":\"https://itunes.apple.com/us/ar" +
  3.     "tist/the-beatles/id136975?uo=4\", \"artistId\":136975, \"amgArtistId\":3644, \"primary" +
  4.     "GenreName\":\"Rock\", \"primaryGenreId\":21}, \r\n{\"wrapperType\":\"artist\", \"artistType\"" +
  5.     ":\"Artist\", \"artistName\":\"Beatles Celebration\", \"artistLinkUrl\":\"https://itunes.a" +
  6.     "pple.com/us/artist/beatles-celebration/id369309908?uo=4\", \"artistId\":369309908, " +
  7.     "\"primaryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"arti" +
  8.     "stType\":\"Artist\", \"artistName\":\"Blues Beatles\", \"artistLinkUrl\":\"https://itunes." +
  9.     "apple.com/us/artist/blues-beatles/id1177076976?uo=4\", \"artistId\":1177076976, \"pr" +
  10.     "imaryGenreName\":\"Blues\", \"primaryGenreId\":2}, \r\n{\"wrapperType\":\"artist\", \"artist" +
  11.     "Type\":\"Artist\", \"artistName\":\"Bornagen Beatles\", \"artistLinkUrl\":\"https://itunes" +
  12.     ".apple.com/us/artist/bornagen-beatles/id417746653?uo=4\", \"artistId\":417746653, \"" +
  13.     "primaryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artis" +
  14.     "tType\":\"Artist\", \"artistName\":\"The Beatles Symphonic Orchestra\", \"artistLinkUrl\"" +
  15.     ":\"https://itunes.apple.com/us/artist/the-beatles-symphonic-orchestra/id410698389" +
  16.     "?uo=4\", \"artistId\":410698389}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\"," +
  17.     " \"artistName\":\"The Platinum Beatles\", \"artistLinkUrl\":\"https://itunes.apple.com/" +
  18.     "us/artist/the-platinum-beatles/id371061808?uo=4\", \"artistId\":371061808, \"primary" +
  19.     "GenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType\":" +
  20.     "\"Artist\", \"artistName\":\"3 Normal Beatles\", \"artistLinkUrl\":\"https://itunes.apple" +
  21.     ".com/us/artist/3-normal-beatles/id269076416?uo=4\", \"artistId\":269076416, \"primar" +
  22.     "yGenreName\":\"Alternative\", \"primaryGenreId\":20}, \r\n{\"wrapperType\":\"artist\", \"art" +
  23.     "istType\":\"Artist\", \"artistName\":\"Songs The Beatles Gave Away\", \"artistLinkUrl\":\"" +
  24.     "https://itunes.apple.com/us/artist/songs-the-beatles-gave-away/id321298056?uo=4\"" +
  25.     ", \"artistId\":321298056, \"primaryGenreName\":\"Rock\", \"primaryGenreId\":21}, \r\n{\"wra" +
  26.     "pperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"#1 Beatles Lovers\", \"ar" +
  27.     "tistLinkUrl\":\"https://itunes.apple.com/us/artist/1-beatles-lovers/id370331152?uo" +
  28.     "=4\", \"artistId\":370331152, \"primaryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"w" +
  29.     "rapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"Savage Young Beatles\"" +
  30.     ", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/savage-young-beatles/id796" +
  31.     "23511?uo=4\", \"artistId\":79623511, \"amgArtistId\":877930, \"primaryGenreName\":\"Danc" +
  32.     "e\", \"primaryGenreId\":17}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"art" +
  33.     "istName\":\"Beatles Revival Band\", \"artistLinkUrl\":\"https://itunes.apple.com/us/ar" +
  34.     "tist/beatles-revival-band/id215066533?uo=4\", \"artistId\":215066533, \"primaryGenre" +
  35.     "Name\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Arti" +
  36.     "st\", \"artistName\":\"The Rolling Beatles\", \"artistLinkUrl\":\"https://itunes.apple.c" +
  37.     "om/us/artist/the-rolling-beatles/id439964146?uo=4\", \"artistId\":439964146, \"prima" +
  38.     "ryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType" +
  39.     "\":\"Artist\", \"artistName\":\"The Beatles Revival Band & Orchestra\", \"artistLinkUrl\"" +
  40.     ":\"https://itunes.apple.com/us/artist/the-beatles-revival-band-orchestra/id443425" +
  41.     "560?uo=4\", \"artistId\":443425560, \"primaryGenreName\":\"Pop\", \"primaryGenreId\":14}," +
  42.     " \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The Beatles Con" +
  43.     "nection\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-beatles-connec" +
  44.     "tion/id911648932?uo=4\", \"artistId\":911648932, \"primaryGenreName\":\"Britpop\", \"pri" +
  45.     "maryGenreId\":1132}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistNam" +
  46.     "e\":\"The Philharmonic Beatles Experience\", \"artistLinkUrl\":\"https://itunes.apple." +
  47.     "com/us/artist/the-philharmonic-beatles-experience/id410698395?uo=4\", \"artistId\":" +
  48.     "410698395}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The " +
  49.     "Savage Young Beatles\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-s" +
  50.     "avage-young-beatles/id304600324?uo=4\", \"artistId\":304600324, \"amgArtistId\":87793" +
  51.     "0, \"primaryGenreName\":\"Rock\", \"primaryGenreId\":21}, \r\n{\"wrapperType\":\"artist\", \"" +
  52.     "artistType\":\"Artist\", \"artistName\":\"The Bootleg Beatles\", \"artistLinkUrl\":\"https" +
  53.     "://itunes.apple.com/us/artist/the-bootleg-beatles/id165911529?uo=4\", \"artistId\":" +
  54.     "165911529}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Software Artist\", \"artistNa" +
  55.     "me\":\"Beat-les Group IKE\", \"artistLinkUrl\":\"https://itunes.apple.com/us/developer" +
  56.     "/beat-les-group-ike/id1195719806?uo=4\", \"artistId\":1195719806}, \r\n{\"wrapperType\"" +
  57.     ":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The Savage Young Beatles featuri" +
  58.     "ng Tony Sheridan\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-savag" +
  59.     "e-young-beatles-featuring-tony-sheridan/id288180269?uo=4\", \"artistId\":288180269," +
  60.     " \"primaryGenreName\":\"Rock\", \"primaryGenreId\":21}, \r\n{\"wrapperType\":\"artist\", \"ar" +
  61.     "tistType\":\"Artist\", \"artistName\":\"The Beatles Acoustic Trio\", \"artistLinkUrl\":\"h" +
  62.     "ttps://itunes.apple.com/us/artist/the-beatles-acoustic-trio/id976631872?uo=4\", \"" +
  63.     "artistId\":976631872, \"primaryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapper" +
  64.     "Type\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The New York Beatles Show\"," +
  65.     " \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-new-york-beatles-show/i" +
  66.     "d370546235?uo=4\", \"artistId\":370546235, \"primaryGenreName\":\"Pop\", \"primaryGenreI" +
  67.     "d\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The Sava" +
  68.     "ge Young Beatles with Tony Sheridan\", \"artistLinkUrl\":\"https://itunes.apple.com/" +
  69.     "us/artist/the-savage-young-beatles-with-tony-sheridan/id984990630?uo=4\", \"artist" +
  70.     "Id\":984990630}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"" +
  71.     "The Ukulele Beatles\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-uk" +
  72.     "ulele-beatles/id606182486?uo=4\", \"artistId\":606182486, \"primaryGenreName\":\"Pop\"," +
  73.     " \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artist" +
  74.     "Name\":\"#1 Beatles Fantasy Band\", \"artistLinkUrl\":\"https://itunes.apple.com/us/ar" +
  75.     "tist/1-beatles-fantasy-band/id370546167?uo=4\", \"artistId\":370546167}, \r\n{\"wrappe" +
  76.     "rType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"Memphis Loves The Beatles " +
  77.     "Studio Band\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/memphis-loves-" +
  78.     "the-beatles-studio-band/id673285434?uo=4\", \"artistId\":673285434, \"primaryGenreNa" +
  79.     "me\":\"R&B/Soul\", \"primaryGenreId\":15}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"A" +
  80.     "rtist\", \"artistName\":\"The Tape-Beatles\", \"artistLinkUrl\":\"https://itunes.apple.c" +
  81.     "om/us/artist/the-tape-beatles/id1165121174?uo=4\", \"artistId\":1165121174, \"primar" +
  82.     "yGenreName\":\"Electronic\", \"primaryGenreId\":7}, \r\n{\"wrapperType\":\"artist\", \"artis" +
  83.     "tType\":\"Artist\", \"artistName\":\"Bootleg Beatles\", \"artistLinkUrl\":\"https://itunes" +
  84.     ".apple.com/us/artist/bootleg-beatles/id370627110?uo=4\", \"artistId\":370627110}, \r" +
  85.     "\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"Tampere Beatles H" +
  86.     "appening\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/tampere-beatles-h" +
  87.     "appening/id1082950038?uo=4\", \"artistId\":1082950038, \"primaryGenreName\":\"Pop\", \"p" +
  88.     "rimaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistNam" +
  89.     "e\":\"Japanese Beatles\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/japan" +
  90.     "ese-beatles/id453677615?uo=4\", \"artistId\":453677615, \"primaryGenreName\":\"Alterna" +
  91.     "tive\", \"primaryGenreId\":20}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"" +
  92.     "artistName\":\"Beatle\'s Wart\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist" +
  93.     "/beatles-wart/id577701203?uo=4\", \"artistId\":577701203, \"amgArtistId\":2992181, \"p" +
  94.     "rimaryGenreName\":\"Pop\", \"primaryGenreId\":14}, \r\n{\"wrapperType\":\"artist\", \"artist" +
  95.     "Type\":\"Artist\", \"artistName\":\"BPC - Beatles Para CrianГ§as\", \"artistLinkUrl\":\"htt" +
  96.     "ps://itunes.apple.com/us/artist/bpc-beatles-para-crian%C3%A7as/id1134646093?uo=4" +
  97.     "\", \"artistId\":1134646093, \"primaryGenreName\":\"Children\'s Music\", \"primaryGenreId" +
  98.     "\":4}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"artistName\":\"The Beatle" +
  99.     "s etcetera\", \"artistLinkUrl\":\"https://itunes.apple.com/us/artist/the-beatles-etc" +
  100.     "etera/id388195904?uo=4\", \"artistId\":388195904, \"primaryGenreName\":\"Spoken Word\"," +
  101.     " \"primaryGenreId\":50000061}, \r\n{\"wrapperType\":\"artist\", \"artistType\":\"Artist\", \"" +
  102.     "artistName\":\"Los Beatles De Cadiz\", \"artistLinkUrl\":\"https://itunes.apple.com/us" +
  103.     "/artist/los-beatles-de-cadiz/id255880236?uo=4\", \"artistId\":255880236, \"primaryGe" +
  104.     "nreName\":\"Pop\", \"primaryGenreId\":14}]\r\n}";
  105. JObject j = JObject.Parse(json);
  106. int resultCount = (int)j["resultCount"];
  107. JArray jArtists = (JArray)j["results"];
  108. for (int i=0; i<resultCount; i++)
  109. {
  110.     string artistName = (string)jArtists[i]["artistName"];
  111.     int artistId = (int)jArtists[i]["artistId"];
  112.     Console.WriteLine("{0}, {1}", artistName, artistId);
  113. }

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