json-pluck

Pluck a single value out of a serde_json::Value by dotted path or a tiny subset of JSONPath. Forgiving, built for LLM-emitted JSON where the answer is buried under unpredictable wrappers.

use json_pluck::pluck;
use serde_json::json;

let v = json!({ "result": { "items": [{ "value": 1 }, { "value": 42 }] } });
assert_eq!(pluck(&v, "result.items[1].value"), Some(&json!(42)));
assert_eq!(pluck(&v, "result.items[-1].value"), Some(&json!(42)));
assert_eq!(pluck(&v, "**.value"), Some(&json!(1)));

**.field BFS-searches the whole tree for the first match. MIT or Apache-2.0.