Struct AppState 

pub struct AppState { /* private fields */ }

Shared application state passed to all request handlers.

This struct is cloneable and cheap to clone since StandardEngine uses Arc internally. Each handler receives a clone of this state.

Example

let state = AppState::new(engine, QueryConfig::default());

// In an axum handler:
async fn handle_query(State(state): State<AppState>, ...) {
    let engine = state.engine();
    // ...
}

Implementations

impl AppState

pub fn new(engine: StandardEngine, config: QueryConfig) -> Self

Create a new AppState with the given engine and configuration.

pub fn engine(&self) -> &StandardEngine

Get a reference to the database engine.

pub fn engine_clone(&self) -> StandardEngine

Get a clone of the database engine.

This is cheap since StandardEngine uses Arc internally.

pub fn config(&self) -> &QueryConfig

Get a reference to the query configuration.

pub fn query_timeout(&self) -> Duration

Get the query timeout from configuration.

pub fn request_timeout(&self) -> Duration

Get the request timeout from configuration.

pub fn max_connections(&self) -> usize

Get the maximum connections from configuration.

Trait Implementations

impl Clone for AppState

fn clone(&self) -> AppState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.