JSONPath for Rust

The library is in hard development stage.

Example

extern crate jsonpath;
extern crate serde_json;
use jsonpath::Selector; use serde_json::Value;
fn main() {     let jsondoc = r#"         {              "books": [                  {                      "title": "Der schwarze Obelist",                      "author": "Erich Maria Remarque"                  },                  {                      "title": "Le mur",                      "author": "Jean-Paul Sartre"                  }              ]         }     "#;
// Parse JSON document     let json: Value = serdejson::fromstr(jsondoc).unwrap();
// Create a JSONPath selector     let selector = Selector::new("$.books.*.title").unwrap();
// Apply the selector to the JSON and convert Vec<&Value> into Vec<&str>     let titles: Vec<&str> = selector.find(&json)         .map(|t| t.as_str().unwrap())         .collect();
assert_eq!(titles, vec!["Der schwarze Obelist", "Le mur"]); }

Roadmap

[ ] Operators:

* [x] $ - root element * [x] .<name> - named child element [x] - wildcard (any child item) * [x] [<number>] - indexed element in array * [x] [<start>:<end>] - slice * [x] [:<end>] - slice (to) * [x] [<start>:] - slice (from)

[ ] Handy test helpers
[ ] Good integration test coverage
[ ] Benchmarks
[ ] Refactor
[ ] Improve error messages
[ ] Review unwraps
[ ] Review the public API (rename Selector -> Path ?)
[ ] Publish a new version
[ ] Mutable iterator
[x] Support filters

* [x] [?(<expression>)] - Filter expression. Expression must evaluate to a boolean value. * [x] @ - current element * [x] operator == * [x] operator != * [x] operator > * [x] operator < * [x] operator >= * [x] operator <= * [ ] operator =~ * [x] filter comparison with expression on the right side [?(<exporession> <operator> <expression>)] * [x] string * [x] float * [x] integer * [x] array of string * [ ] array of float * [ ] array of number * [ ] sub script expression () * [ ] and operator && * [ ] or operator ||

Supported Rust versions

Jsonpath requires rust version 1.26 or higher.

License

Contributors

greyblake Sergey Potapov - creator, maintainer.
MarcAntoine-Arnaud Marc-Antoine ARNAUD - filters support

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