DataTypeLambda

//Ex 1: https://exceljet.net/functions/webservice-function
Eval=LAMBDA(x,EVALUATE(x));
xml=Eval("WEBSERVICE(""https://www.nasa.gov/rss/dyn/breaking_news.rss"")");

//Ex 2: https://www.w3resource.com/JSON/introduction.php
Book=LAMBDA(index1,[index2],[index3],
    SWITCH(index1,
        "Title", "The Cuckoo's Calling",
        "Author", "Robert Galbraith",
        "Genre", "classic crime novel",
        "Detail", 
        SWITCH(index2,
            "Publisher", "Little Brown",
            "Publication_Year", 2013,
            "ISBN-13", 9781408704004,
            "Language", "English",
            "Pages", 494,
        ),
        "Price",
        CHOOSE(index2, 
            SWITCH(index3,
                "type", "Hardcover",
                "price", 16.65,
            ),
            SWITCH(index3,
                "type", "Kidle Edition",
                "price", 7.03,
            )
        )
    )
);

Price=MAP({1,1;2,2},
    {"type","price";"type","price"},
   LAMBDA(index2,index3,
       DataTypes.Book("Price",index2,index3)
    )
)


// JSON 
// {
//     "Title": "The Cuckoo's Calling",
//     "Author": "Robert Galbraith",
//     "Genre": "classic crime novel",
//     "Detail": {
//         "Publisher": "Little Brown",
//         "Publication_Year": 2013,
//         "ISBN-13": 9781408704004,
//         "Language": "English",
//         "Pages": 494
//     },
//     "Price": [
//         {
//             "type": "Hardcover",
//             "price": 16.65
//         },
//         {
//             "type": "Kindle Edition",
//             "price": 7.03
//         }
//     ]
// }