main.rs

  1mod api;
  2mod auth;
  3mod db;
  4mod env;
  5mod rpc;
  6
  7use ::rpc::Peer;
  8use anyhow::{anyhow, Result};
  9use db::{Db, PostgresDb};
 10use hyper::{Body, Request, Server};
 11use routerify::ext::RequestExt as _;
 12use routerify::{Router, RouterService};
 13use serde::Deserialize;
 14use std::{net::TcpListener, sync::Arc};
 15
 16// type Request = tide::Request<Arc<AppState>>;
 17
 18#[derive(Default, Deserialize)]
 19pub struct Config {
 20    pub http_port: u16,
 21    pub database_url: String,
 22    pub api_token: String,
 23}
 24
 25pub struct AppState {
 26    db: Arc<dyn Db>,
 27    config: Config,
 28}
 29
 30impl AppState {
 31    async fn new(config: Config) -> Result<Arc<Self>> {
 32        let db = PostgresDb::new(&config.database_url, 5).await?;
 33
 34        let this = Self {
 35            db: Arc::new(db),
 36            config,
 37        };
 38        Ok(Arc::new(this))
 39    }
 40}
 41
 42trait RequestExt {
 43    fn db(&self) -> &Arc<dyn Db>;
 44}
 45
 46impl RequestExt for Request<Body> {
 47    fn db(&self) -> &Arc<dyn Db> {
 48        &self.data::<Arc<AppState>>().unwrap().db
 49    }
 50}
 51
 52#[tokio::main]
 53async fn main() -> Result<()> {
 54    if std::env::var("LOG_JSON").is_ok() {
 55        json_env_logger::init();
 56    } else {
 57        env_logger::init();
 58    }
 59
 60    if let Err(error) = env::load_dotenv() {
 61        log::error!(
 62            "error loading .env.toml (this is expected in production): {}",
 63            error
 64        );
 65    }
 66
 67    let config = envy::from_env::<Config>().expect("error loading config");
 68    let state = AppState::new(config).await?;
 69    let rpc = Peer::new();
 70    run_server(
 71        state.clone(),
 72        rpc,
 73        TcpListener::bind(&format!("0.0.0.0:{}", state.config.http_port))
 74            .expect("failed to bind TCP listener"),
 75    )
 76    .await?;
 77    Ok(())
 78}
 79
 80fn router(state: Arc<AppState>, peer: Arc<Peer>) -> Result<Router<Body, anyhow::Error>> {
 81    let mut router = Router::builder().data(state);
 82    api::add_routes(&mut router);
 83    router.build().map_err(|error| anyhow!(error))
 84}
 85
 86pub async fn run_server(
 87    state: Arc<AppState>,
 88    peer: Arc<Peer>,
 89    listener: TcpListener,
 90) -> Result<()> {
 91    let service = RouterService::new(router(state, peer)?).map_err(|error| anyhow!(error))?;
 92    Server::from_tcp(listener)?.serve(service);
 93
 94    // let mut app = tide::with_state(state.clone());
 95    // rpc::add_routes(&mut app, &rpc);
 96
 97    // let mut web = tide::with_state(state.clone());
 98    // web.with(CompressMiddleware::new());
 99    // api::add_routes(&mut web);
100
101    // app.at("/").nest(web);
102
103    // app.listen(listener).await?;
104
105    Ok(())
106}