Android Question JsonPATH

[fabton1963]

Does exists a B4X class similar to XPath fo XML that let me filter and extract json structure as described in Stefan Goessner article https://goessner.net/articles/JsonPath/ ?

 

[BillMeyer]

I took a copy of the JSON Goessner offers as an example, used this tool https://b4x.com:51041/json/index.html and got this result:

Dim parser As JSONParser
parser.Initialize(<text>)
Dim root As Map = parser.NextObject
Dim store As Map = root.Get("store")
Dim bicycle As Map = store.Get("bicycle")
Dim color As String = bicycle.Get("color")
Dim price As Double = bicycle.Get("price")
Dim book As List = store.Get("book")
For Each colbook As Map In book
 Dim author As String = colbook.Get("author")
 Dim price As Double = colbook.Get("price")
 Dim category As String = colbook.Get("category")
 Dim title As String = colbook.Get("title")
Next

And this is how the tool extracts the JSON

Spoiler: JSON Extract

store

• bicycle
  • color: red
  • price: 19.95
• book
  • 0
    • author: Nigel Rees
    • price: 8.95
    • category: reference
    • title: Sayings of the Century
  • 1
    • author: Evelyn Waugh
    • price: 12.99
    • category: fiction
    • title: Sword of Honour
  • 2
    • author: Herman Melville
    • price: 8.99
    • isbn: 0-553-21311-3
    • category: fiction
    • title: Moby Dick
  • 3
    • author: J. R. R. Tolkien
    • price: 22.99
    • isbn: 0-395-19395-8
    • category: fiction
    • title: The Lord of the Rings

Hope this helps