Trait MetaExtractor 

pub trait MetaExtractor: Sync {
    // Required methods
    fn root(&self, session_id: &str, payload: &Value) -> RootFields;
    fn child(&self, child_id: &str, payload: &Value) -> ChildFields;
}

Decouples index rebuild from the (opaque) session payload shape: the caller knows how to read its own session JSON, the store knows the directory structure.

Required Methods

fn root(&self, session_id: &str, payload: &Value) -> RootFields

fn child(&self, child_id: &str, payload: &Value) -> ChildFields

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors