Function query_first 

pub fn query_first(
    doc: &Document,
    path: &str,
    config: &QueryConfig,
) -> QueryResult<Option<Value>>

Query a HEDL document and return the first match

Convenience function for queries expected to return a single result.

Arguments

• doc - The HEDL document to query
• path - JSONPath expression
• config - Query configuration

Returns

The first matching JSON value, or None if no matches found

Examples

use hedl_json::jsonpath::{query_first, QueryConfig};
use hedl_core::Document;

# fn example() -> Result<(), Box<dyn std::error::Error>> {
let doc = hedl_core::parse_hedl("name: \"Alice\""?;
let config = QueryConfig::default();

let result = query_first(&doc, "$.name", &config)?;
assert!(result.is_some());
# Ok(())
# }