A JS implementation of JSONPath

npm install JSONPath
873 downloads in the last day
3 730 downloads in the last week
11 277 downloads in the last month

JSONPath build status

Analyse, transform, and selectively extract data from JSON documents (and JavaScript objects).


npm install JSONPath


In node.js:

var jsonPath = require('JSONPath');
jsonPath.eval(obj, path);

For browser usage you can directly include lib/jsonpath.js, no browserify magic necessary:

<script type="text/javascript" src="lib/jsonpath.js"></script>
<script type="text/javascript">
    jsonPath.eval(obj, path);


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
XPath JSONPath Result
/store/book/author $.store.book[*].author the authors of all books in the store
//author $..author all authors
/store/* $.store.* all things in store, which are some books and a red bicycle.
/store//price $.store..price the 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
//*[price>19]/.. $..[?(@.price>19)]^ categories with things more expensive than 19
//* $..* all Elements in XML document. All members of JSON structure.


Running the tests on node: npm test. For in-browser tests:

  • Ensure that nodeunit is browser-compiled: cd node_modules/nodeunit; make browser;
  • Serve the js/html files:
    node -e "require('http').createServer(function(req,res) { \
        var s = require('fs').createReadStream('.' + req.url); \
        s.pipe(res); s.on('error', function() {}); }).listen(8082);"


MIT License.

npm loves you