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+alias org.eolang.io.stdout
+alias org.eolang.txt.sprintf
+alias org.eolang.fs.json
+alias org.eolang.collections.map

# The first way is to parse the text
json.parse "there should be a json string" > x

# The second way is to wrap the map
json.wrap map > x

{
  "id": 1,
  "books": [
    {
      "title": "Winnie the Pooh",
      "author": "Alexander Milne"
    },
    {
      "title": "Hamlet",
      "author": "William Shakespeare"
    }
  ],
  "description": {
    "color": "black",
    "material": "wood"
  }
}

json.parse data > x

# 'leaf' takes one or more values, and deepens along the specified path
# if an object with this name did not exist, it creates an empty json object
x.leaf "books" > books

# 'write' operation puts the object in the field where we are now
(x.leaf "essence").write "bookcase"

stdout > @
  sprintf
    "In the %s %s I took a book called %s"
    (x.leaf "description" "color").as-string
    (x.leaf "essence").as-string
    ((books.get 0).leaf "title").as-string 

# creating of empty json object
json.parse "{}" > x

(x.leaf "age").write 20
  
(x.leaf "state").write "good"

{
  "age": 20,
  "state": "good"
}