mod api; mod auth; mod db; mod env; mod rpc; use axum::{body::Body, http::StatusCode, response::IntoResponse, Router}; use db::{Db, PostgresDb}; use opentelemetry::sdk::metrics::PushController; use serde::Deserialize; use std::{ net::{SocketAddr, TcpListener}, sync::Arc, }; use tokio_stream::wrappers::IntervalStream; use tracing::metadata::LevelFilter; #[derive(Default, Deserialize)] pub struct Config { pub http_port: u16, pub database_url: String, pub api_token: String, pub honeycomb_api_key: Option, pub honeycomb_dataset: Option, pub trace_level: Option, } pub struct AppState { db: Arc, api_token: String, } impl AppState { async fn new(config: &Config) -> Result> { let db = PostgresDb::new(&config.database_url, 5).await?; let this = Self { db: Arc::new(db), api_token: config.api_token.clone(), }; Ok(Arc::new(this)) } } #[tokio::main] async fn main() -> Result<()> { env_logger::init(); if let Err(error) = env::load_dotenv() { log::error!( "error loading .env.toml (this is expected in production): {}", error ); } let config = envy::from_env::().expect("error loading config"); let _metrics_push_controller = init_telemetry(&config); let state = AppState::new(&config).await?; let listener = TcpListener::bind(&format!("0.0.0.0:{}", config.http_port)) .expect("failed to bind TCP listener"); let app = Router::::new() .merge(api::routes(state.clone())) .merge(rpc::routes(state)); axum::Server::from_tcp(listener)? .serve(app.into_make_service_with_connect_info::()) .await?; Ok(()) } pub type Result = std::result::Result; pub enum Error { Http(StatusCode, String), Internal(anyhow::Error), } impl From for Error where E: Into, { fn from(error: E) -> Self { Self::Internal(error.into()) } } impl IntoResponse for Error { fn into_response(self) -> axum::response::Response { match self { Error::Http(code, message) => (code, message).into_response(), Error::Internal(error) => { (StatusCode::INTERNAL_SERVER_ERROR, format!("{}", &error)).into_response() } } } } impl std::fmt::Debug for Error { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { Error::Http(code, message) => (code, message).fmt(f), Error::Internal(error) => error.fmt(f), } } } impl std::fmt::Display for Error { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { Error::Http(code, message) => write!(f, "{code}: {message}"), Error::Internal(error) => error.fmt(f), } } } pub fn init_telemetry(config: &Config) -> Option { use opentelemetry::KeyValue; use opentelemetry_otlp::WithExportConfig; use std::str::FromStr; use tracing_opentelemetry::OpenTelemetryLayer; use tracing_subscriber::layer::SubscriberExt; let (honeycomb_api_key, honeycomb_dataset) = config .honeycomb_api_key .clone() .zip(config.honeycomb_dataset.clone())?; let mut metadata = tonic::metadata::MetadataMap::new(); metadata.insert("x-honeycomb-team", honeycomb_api_key.parse().unwrap()); let service_name = KeyValue::new("service.name", honeycomb_dataset.clone()); let tracer = opentelemetry_otlp::new_pipeline() .tracing() .with_exporter( opentelemetry_otlp::new_exporter() .tonic() .with_endpoint("https://api.honeycomb.io") .with_metadata(metadata.clone()), ) .with_trace_config( opentelemetry::sdk::trace::config() .with_resource(opentelemetry::sdk::Resource::new([service_name.clone()])), ) .install_batch(opentelemetry::runtime::Tokio) .expect("failed to initialize tracing"); let subscriber = tracing_subscriber::Registry::default() .with(OpenTelemetryLayer::new(tracer)) .with(tracing_subscriber::fmt::layer()) .with( config .trace_level .as_ref() .map_or(LevelFilter::INFO, |level| { LevelFilter::from_str(level).unwrap() }), ); tracing::subscriber::set_global_default(subscriber).unwrap(); // metadata.insert("x-honeycomb-dataset", "collab_metrics".parse().unwrap()); // let push_controller = opentelemetry_otlp::new_pipeline() // .metrics(tokio::spawn, |duration| { // IntervalStream::new(tokio::time::interval(duration)) // }) // .with_exporter( // opentelemetry_otlp::new_exporter() // .tonic() // .with_endpoint("https://api.honeycomb.io") // .with_metadata(metadata.clone()), // ) // .with_resource([service_name]) // .build() // .unwrap(); let push_controller = opentelemetry::sdk::export::metrics::stdout(tokio::spawn, |duration| { IntervalStream::new(tokio::time::interval(duration)) }) .init(); Some(push_controller) }