- add: session-service

- move: redis_cache from database service to utils so it can be reused
- update: redis_cache set function to allow creating a key without a lifetime
- update: services to use the new get_or_generate_service_id function

session-service/src/main.rs

@@ -0,0 +1,77 @@
+mod session_service;
+
+use dotenv::dotenv;
+use std::collections::HashMap;
+use std::env;
+use std::str::FromStr;
+use std::sync::Arc;
+use tokio::{select, signal};
+use tokio::sync::Mutex;
+use tonic::transport::Server;
+use tracing::Level;
+use utils::consul_registration;
+use utils::redis_cache::RedisCache;
+use utils::service_discovery::get_service_address;
+use crate::api::session_service_server::SessionServiceServer;
+use crate::session_service::SessionServiceImpl;
+
+pub mod api {
+    tonic::include_proto!("session_service_api");
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    dotenv().ok();
+    tracing_subscriber::fmt()
+        .with_max_level(Level::from_str(&env::var("LOG_LEVEL").unwrap_or_else(|_| "info".to_string())).unwrap_or_else(|_| Level::INFO))
+        .init();
+
+    // Set the gRPC server address
+    let addr = env::var("LISTEN_ADDR").unwrap_or_else(|_| "0.0.0.0".to_string());
+    let port = env::var("SESSION_SERVICE_PORT").unwrap_or_else(|_| "50055".to_string());
+    let health_port = env::var("HEALTH_CHECK_PORT").unwrap_or_else(|_| "8084".to_string());
+    
+    let redis_url = std::env::var("REDIS_URL").unwrap_or_else(|_| "redis://127.0.0.1:6379".to_string());
+    let consul_url = env::var("CONSUL_URL").unwrap_or_else(|_| "http://127.0.0.1:8500".to_string());
+    let service_name = env::var("SERVICE_NAME").unwrap_or_else(|_| "session-service".to_string());
+    let service_address = env::var("SESSION_SERVICE_ADDR").unwrap_or_else(|_| "127.0.0.1".to_string());
+    let service_port = port.clone();
+    let health_check_url = format!("http://{}:{}/health", service_address, health_port);
+
+    // Register service with Consul
+    let service_id = consul_registration::get_or_generate_service_id();
+    let tags = vec!["version-1.0".to_string()];
+    let meta = HashMap::new();
+    consul_registration::register_service(
+        &consul_url,
+        service_id.as_str(),
+        service_name.as_str(),
+        service_address.as_str(),
+        service_port.parse().unwrap_or(50055),
+        tags,
+        meta,
+        &health_check_url,
+    )
+        .await?;
+
+    // Start health-check endpoint
+    consul_registration::start_health_check(addr.as_str()).await?;
+
+    let full_addr = format!("{}:{}", &addr, port);
+    let address = full_addr.parse().expect("Invalid address");
+    let redis_cache = Arc::new(Mutex::new(RedisCache::new(&redis_url)));
+    let session_service =  SessionServiceImpl {
+        redis: redis_cache
+    };
+
+    tokio::spawn(Server::builder()
+        .add_service(SessionServiceServer::new(session_service))
+        .serve(address));
+
+    select! {
+        _ = signal::ctrl_c() => {},
+    }
+
+    consul_registration::deregister_service(&consul_url, service_id.as_str()).await.expect("");
+    Ok(())
+}