jsonpath_lib 0.3.0

It is JsonPath engine written in Rust. it provide a similar API interface in Webassembly and Javascript too. - Webassembly Demo: https://freestrings.github.io/jsonpath
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

extern crate jsonpath_lib as jsonpath;
#[macro_use]
extern crate serde_json;

use common::{read_json, setup};
use jsonpath::{Parser, Selector, SelectorMut};
use serde_json::Value;

mod common;

#[test]
fn selector_mut() {
    setup();

    let mut selector_mut = SelectorMut::default();

    let mut nums = Vec::new();
    let result = selector_mut
        .str_path(r#"$.store..price"#)
        .unwrap()
        .value(read_json("./benchmark/example.json"))
        .replace_with(&mut |v| {
            if let Value::Number(n) = v {
                nums.push(n.as_f64().unwrap());
            }
            Some(Value::String("a".to_string()))
        })
        .unwrap()
        .take()
        .unwrap();

    assert_eq!(
        nums,
        vec![8.95_f64, 12.99_f64, 8.99_f64, 22.99_f64, 19.95_f64]
    );

    let mut selector = Selector::default();
    let result = selector
        .str_path(r#"$.store..price"#)
        .unwrap()
        .value(&result)
        .select()
        .unwrap();

    assert_eq!(
        vec![
            &json!("a"),
            &json!("a"),
            &json!("a"),
            &json!("a"),
            &json!("a")
        ],
        result
    );
}

#[test]
fn selector_node_ref() {
    let node = Parser::compile("$.*").unwrap();
    let mut selector = Selector::default();
    selector.compiled_path(&node);
    assert!(std::ptr::eq(selector.node_ref().unwrap(), &node));
}

#[test]
fn selector_delete() {
    setup();

    let mut selector_mut = SelectorMut::default();

    let result = selector_mut
        .str_path(r#"$.store..price[?(@>13)]"#)
        .unwrap()
        .value(read_json("./benchmark/example.json"))
        .delete()
        .unwrap()
        .take()
        .unwrap();

    let mut selector = Selector::default();
    let result = selector
        .str_path(r#"$.store..price"#)
        .unwrap()
        .value(&result)
        .select()
        .unwrap();

    assert_eq!(
        result,
        vec![
            &json!(8.95),
            &json!(12.99),
            &json!(8.99),
            &Value::Null,
            &Value::Null
        ]
    );
}

#[test]
fn selector_remove() {
    setup();

    let mut selector_mut = SelectorMut::default();

    let result = selector_mut
        .str_path(r#"$.store..price[?(@>13)]"#)
        .unwrap()
        .value(read_json("./benchmark/example.json"))
        .remove()
        .unwrap()
        .take()
        .unwrap();

    let mut selector = Selector::default();
    let result = selector
        .str_path(r#"$.store..price"#)
        .unwrap()
        .value(&result)
        .select()
        .unwrap();

    assert_eq!(
        result,
        vec![
            &json!(8.95),
            &json!(12.99),
            &json!(8.99)
        ]
    );
}