52 lines
1.7 KiB
Rust
52 lines
1.7 KiB
Rust
//! Used by admins for health checks and inspecting global statistics.
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//!
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//! For ease of development, users can currently access these endponts.
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//! They will eventually move to another port.
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use crate::app::Web3ProxyApp;
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use axum::{http::StatusCode, response::IntoResponse, Extension, Json};
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use moka::future::ConcurrentCacheExt;
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use serde_json::json;
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use std::sync::Arc;
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use axum_macros::debug_handler;
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/// Health check page for load balancers to use.
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#[debug_handler]
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pub async fn health(Extension(app): Extension<Arc<Web3ProxyApp>>) -> impl IntoResponse {
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// TODO: also check that the head block is not too old
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if app.balanced_rpcs.synced() {
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(StatusCode::OK, "OK")
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} else {
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(StatusCode::SERVICE_UNAVAILABLE, ":(")
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}
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}
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/// Prometheus metrics.
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///
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/// TODO: when done debugging, remove this and only allow access on a different port
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#[debug_handler]
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pub async fn prometheus(Extension(app): Extension<Arc<Web3ProxyApp>>) -> impl IntoResponse {
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app.prometheus_metrics()
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}
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/// Very basic status page.
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///
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/// TODO: replace this with proper stats and monitoring
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#[debug_handler]
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pub async fn status(Extension(app): Extension<Arc<Web3ProxyApp>>) -> impl IntoResponse {
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app.pending_transactions.sync();
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app.user_key_cache.sync();
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// TODO: what else should we include? uptime, cache hit rates, cpu load
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let body = json!({
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"pending_transactions_count": app.pending_transactions.entry_count(),
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"pending_transactions_size": app.pending_transactions.weighted_size(),
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"user_cache_count": app.user_key_cache.entry_count(),
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"user_cache_size": app.user_key_cache.weighted_size(),
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"balanced_rpcs": app.balanced_rpcs,
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"private_rpcs": app.private_rpcs,
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});
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Json(body)
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}
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