jsonpath-rs

A Rust implementation of JsonPath.

Why

1. Return correct result types (scalar vs. array) based on user queries
2. Support a rich set of filters and functions (WIP), e.g. [?((@.id > 10 || @.id < -1) && @.msg contains 'jsonpath')]

To Use the Library

use json_path::JsonPathQuery;
use serde_json::json;

let object = json!({"greetings": "hello, json_path"});
let result = object.query("$['greetings']");
assert_eq!(Ok(json!("hello, json_path")), result);

To Use the Binary

$ cargo install json_path_bin
$ echo '{"msg": "hello!"}' | json_path_bin -j '$.msg'
"hello!"
$

Features

Operators

1. Can use negative numbers for both array index or array slice. It indicates the evaluator to access an item from the end of the array.
2. Array slice can support notions like:
   • [1:] slice from index 1 (inclusive) to the end
   • [:-1] slice from begining to the last item (exclusive)
   • [1:10] slice from 1 (inclusive) to 10 (exclusive)

Filters

Similar Projects

• freestrings/jsonpath
• besok/jsonpath-rust
• greyblake/jsonpath-rs
• RedisJSON/jsonpath_rs