c2is/json-iterator

Library for Iterate over JSON from a string or an array

dev-master / 0.1.x-dev 2015-10-02 15:45 UTC

README

This library allows you to iterate over Json from a string or an array. Uses JsonPath to identify which nodes should be iterated upon.

JSONPath Examples

JSONPath Result
$.store.books[\*].author the authors of all books in the store
$..author all authors
$.store..price the price of everything in the store.
$..books[2] the third book
$..books[(@.length-1)] the last book in order.
$..books[0,1] the first two books
$..books[:2] the first two books
$..books[?(@.isbn)] filter all books with isbn number
$..books[?(@.price<10)] filter all books cheapier than 10
$..* all elements in the data (recursively extracted)

Expression syntax

Symbol Description
$ The root object/element (not strictly necessary)
@ The current object/element
. or [] Child operator
.. Recursive descent
* Wildcard. All child elements regardless their index.
[,] Array indices as a set
[start:end:step] Array slice operator borrowed from ES4/Python.
?() Filters a result set by a script expression
() Uses the result of a script expression as the index