src/api/health.rs


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//! `GET /health` and `GET /ready`: unauthenticated, for supervisors and load balancers.
//! They say whether the node is up and whether it serves the store, nothing more.

use axum::{extract::State, http::StatusCode};

use crate::state::AppState;

/// The HTTP API is up.
pub(crate) async fn health() -> &'static str {
    "ok\n"
}

/// The node serves reads and writes: ready, not joining or rejoining.
pub(crate) async fn ready(State(state): State<AppState>) -> (StatusCode, &'static str) {
    if state.is_ready().await {
        (StatusCode::OK, "ready\n")
    } else {
        (StatusCode::SERVICE_UNAVAILABLE, "not ready\n")
    }
}