jsonpath/README.md

Jsonpath

JsonPath Rust 구현

왜?

To enjoy Rust

사용법

With Javascript (WebAssembly)

jsonpath-wasm 라이브리러

(not yet published jsonpath-wasm)

import * as jsonpath from "jsonpath-wasm";

read 함수

jsonpath.read(JSON.parse("{\"a\" : 1}"), "$.a");
jsonpath.read("{\"a\" : 1}", "$.a");

JsonPath 재사용

let template = jsonpath.compile("$.a");

//
// 1. read json string
//
template("{\"a\" : 1}")

//
// 2. read as json object
//
template(JSON.parse("{\"a\" : 1}"));

Json 재사용

//
// 1. read json string
//
let reader1 = jsonpath.reader("{\"a\" : 1}");
reader1("$.a");
reader1("$.b");

//
// 2. read as json object
//
let reader2 = jsonpath.reader(JSON.parse("{\"a\" : 1}"));
reader2("$.a");
reader2("$.b");

데모

Demo: https://freestrings.github.io/jsonpath/

json 데이터 (참고 사이트: https://github.com/json-path/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
        }
    },
    "expensive": 10
}

JsonPath (click link to try)	Result
$.store.book[*].author	The authors of all books
$..author	All authors
$.store.*	All things, both books and bicycles
$.store..price	The price of everything
$..book[2]	The third book
$..book[-2]	The second to last book
$..book[0,1]	The first two books
$..book[:2]	All books from index 0 (inclusive) until index 2 (exclusive)
$..book[1:2]	All books from index 1 (inclusive) until index 2 (exclusive)
$..book[-2:]	Last two books
$..book[2:]	Book number two from tail
$..book[?(@.isbn)]	All books with an ISBN number
$.store.book[?(@.price < 10)]	All books in store cheaper than 10
$..book[?(@.price <= $['expensive'])] (not yet supported)	All books in store that are not "expensive"
$..book[?(@.author =~ /.*REES/i)] (not yet supported)	All books matching regex (ignore case)
$..*	Give me every thing
$..book.length() (not yet supported)	The number of books

With Rust (as library)

With AWS API Gateway

성능테스트