Trait JsonPathQuery

pub trait JsonPathQuery {
    // Required method
    fn path(self, query: &str) -> Result<Value, JsonPathParserError>;
}

the trait allows to query a path on any value by just passing the &str of as JsonPath.

It is equal to

use jsonpath_rust::JsonPath;

let query = "$.hello";
let json_path = JsonPath::from_str(query).unwrap();
json_path.find(&json!({"hello": "world"}));

It is default implemented for Value.

#Note: the result is going to be cloned and therefore it can be significant for the huge queries. if the same &str is used multiple times, it’s more efficient to reuse a single JsonPath.

Examples:

use std::str::FromStr;
use serde_json::{json, Value};
use jsonpath_rust::jp_v;
use jsonpath_rust::{JsonPathQuery, JsonPath, JsonPathValue};

fn test() -> Result<(), Box<dyn std::error::Error>> {
    let json: Value = serde_json::from_str("{}")?;
    let v = json.path("$..book[?(@.author size 10)].title")?;
    assert_eq!(v, json!([]));

    let json: Value = serde_json::from_str("{}")?;
    let path = json.path("$..book[?(@.author size 10)].title")?;

    assert_eq!(path, json!(["Sayings of the Century"]));

    let json: Value = serde_json::from_str("{}")?;
    let path = JsonPath::try_from("$..book[?(@.author size 10)].title")?;

    let v = path.find_slice(&json);
    let js = json!("Sayings of the Century");
    assert_eq!(v, jp_v![&js;"",]);
}

Required Methods

fn path(self, query: &str) -> Result<Value, JsonPathParserError>

Implementations on Foreign Types

impl JsonPathQuery for Value

fn path(self, query: &str) -> Result<Value, JsonPathParserError>

Implementors