Fix default connection string and set port as environment variable

src/env.rs

@@ -4,6 +4,7 @@ use std::env;
 pub struct Env {
     pub postgres_connection_string: String,
     pub allowed_origins: Vec<String>,
+    pub port: String,
 }
 
 impl Env {
@@ -17,9 +18,13 @@ impl Env {
             .map(|s| s.trim().to_string())
             .collect();
 
+        let port = env::var("PORT")
+            .unwrap_or_else(|_| "3000".to_string());
+
         Env {
             postgres_connection_string,
             allowed_origins,
+            port,
         }
     }
 }

src/main.rs

@@ -12,9 +12,11 @@ async fn main() {
         .with(tracing_subscriber::fmt::layer())
         .init();
 
-    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
+    let state = AppState::new().await;
+    let port = &state.env.port;
+    let listener = tokio::net::TcpListener::bind(format!("0.0.0.0:{port}")).await.unwrap();
     tracing::info!("listening on {}", listener.local_addr().unwrap());
-    axum::serve(listener, upvoters::app(AppState::new().await))
+    axum::serve(listener, upvoters::app(state))
         .await
         .unwrap();
 }

src/test_helpers.rs

@@ -3,7 +3,7 @@ pub mod db {
     use sqlx::PgPool;
 
     const DEFAULT_CONNECTION_STRING: &str =
-        "postgres://uprs:password123@localhost:5432/uprs";
+        "postgres://upvoters:password123@localhost:5432/upvoters";
 
     pub async fn test_pool() -> PgPool {
         let conn = std::env::var("POSTGRES_CONNECTION_STRING")

src/votes/handlers.rs

@@ -141,6 +141,8 @@ mod tests {
             db,
             env: Env {
                 postgres_connection_string: String::new(),
+                allowed_origins: vec![],
+                port: "3000".to_string(),
             },
         }
     }