92 lines
3.4 KiB
Rust
92 lines
3.4 KiB
Rust
use database_service::db::Database;
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use database_service::grpc::character_db_service_server::CharacterDbServiceServer;
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use database_service::grpc::database_service::MyDatabaseService;
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use database_service::grpc::user_service_server::UserServiceServer;
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use dotenv::dotenv;
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use sqlx::postgres::PgPoolOptions;
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use std::collections::HashMap;
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use std::env;
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use std::str::FromStr;
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use std::sync::Arc;
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use tokio::sync::Mutex;
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use tonic::transport::Server;
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use tracing::{info, Level};
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use utils::consul_registration;
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use utils::redis_cache::RedisCache;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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dotenv().ok();
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tracing_subscriber::fmt()
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.with_max_level(
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Level::from_str(&env::var("LOG_LEVEL").unwrap_or_else(|_| "info".to_string()))
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.unwrap_or_else(|_| Level::INFO),
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)
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.init();
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let addr = env::var("LISTEN_ADDR").unwrap_or_else(|_| "0.0.0.0".to_string());
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let port = env::var("DATABASE_SERVICE_PORT").unwrap_or_else(|_| "50052".to_string());
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let database_url = std::env::var("DATABASE_URL").expect("DATABASE_URL must be set");
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let redis_url =
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std::env::var("REDIS_URL").unwrap_or_else(|_| "redis://127.0.0.1:6379".to_string());
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let consul_url = env::var("CONSUL_URL").unwrap_or_else(|_| "http://127.0.0.1:8500".to_string());
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let service_name = env::var("SERVICE_NAME").unwrap_or_else(|_| "database-service".to_string());
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let service_address =
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env::var("DATABASE_SERVICE_ADDR").unwrap_or_else(|_| "127.0.0.1".to_string());
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let service_port = port.clone();
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// Register service with Consul
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let service_id = consul_registration::get_or_generate_service_id(env!("CARGO_PKG_NAME"));
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let version = env!("CARGO_PKG_VERSION").to_string();
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let tags = vec![version, "grpc".to_string()];
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let meta = HashMap::new();
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consul_registration::register_service(
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&consul_url,
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service_id.as_str(),
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service_name.as_str(),
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service_address.as_str(),
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service_port.parse().unwrap_or(50052),
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tags,
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meta,
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None,
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None,
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)
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.await?;
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consul_registration::start_health_check(addr.as_str()).await?;
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let full_addr = format!("{}:{}", &addr, port);
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let address = full_addr.parse().expect("Invalid address");
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let pool = PgPoolOptions::new()
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.max_connections(5)
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.connect(&database_url)
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.await
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.expect("Failed to create PostgreSQL connection pool");
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let redis_cache = Arc::new(Mutex::new(RedisCache::new(&redis_url)));
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let db = Arc::new(Database::new(pool, redis_cache));
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let my_service = MyDatabaseService { db };
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let (mut health_reporter, health_service) = tonic_health::server::health_reporter();
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health_reporter.set_serving::<UserServiceServer<MyDatabaseService>>().await;
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// Pass `shared_cache` into services as needed
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info!("Database Service running on {}", address);
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tokio::spawn(
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Server::builder()
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.add_service(health_service)
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.add_service(UserServiceServer::new(my_service.clone()))
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.add_service(CharacterDbServiceServer::new(my_service))
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.serve(address),
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);
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utils::signal_handler::wait_for_signal().await;
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consul_registration::deregister_service(&consul_url, service_id.as_str())
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.await
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.expect("");
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info!("service {} deregistered", service_name);
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Ok(())
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}
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