A JS implementation of JSONPath with replacement


npm install jsonpath-rep


var jsonpath = require('jsonpath-rep');
jsonpath.eval(obj, path, args);

With replacement

  jsonpath.eval(obj, path, args, replaceval);


Given the following JSON, taken from http://goessner.net/articles/JsonPath/ :

{ "store": {
    "book": [ 
      { "category": "reference",
        "author": "Nigel Rees",
        "title": "Sayings of the Century",
        "price": 8.95
      { "category": "fiction",
        "author": "Evelyn Waugh",
        "title": "Sword of Honour",
        "price": 12.99
      { "category": "fiction",
        "author": "Herman Melville",
        "title": "Moby Dick",
        "isbn": "0-553-21311-3",
        "price": 8.99
      { "category": "fiction",
        "author": "J. R. R. Tolkien",
        "title": "The Lord of the Rings",
        "isbn": "0-395-19395-8",
        "price": 22.99
    "bicycle": {
      "color": "red",
      "price": 19.95
/store/book/author$.store.book[*].authorthe authors of all books in the store
//author$..authorall authors
/store/*$.store.*all things in store, which are some books and a red bicycle.
/store//price$.store..pricethe price of everything in the store.
//book[3]$..book[2]the third book
//book[last()]$..book[(@.length-1)]the last book in order.
//book[position()<3]$..book[0,1]the first two books
//book[isbn]$..book[+(@.isbn)]filter all books with isbn number
//book[price<10]$..book[+(@.price<10)]filter all books cheapier than 10
//*$..*all Elements in XML document. All members of JSON structure.

See http://www.opensource.org/licenses/mit-license.php for license.