chore: adding some way to read the env variable and run the app with the setted port

Author: igorvieira

src/handler.rs

@@ -1,6 +1,6 @@
 use crate::{
     model::NoteModel,
-    schema::{CreateNoteSchema, FilterOptions, UpdateNoteSchema},
+    schema::{ CreateNoteSchema, FilterOptions, UpdateNoteSchema },
     AppState,
 };
 use actix_web::{delete, get, patch, post, web, HttpResponse, Responder};

src/main.rs

@@ -7,6 +7,7 @@ use actix_web::middleware::Logger;
 use actix_web::{ http::header, web, App, HttpServer };
 use dotenv::dotenv;
 use sqlx::{ postgres::PgPoolOptions, Pool, Postgres };
+use std::env;
 
 pub struct AppState {
     db: Pool<Postgres>,
@@ -20,6 +21,11 @@ async fn main() -> std::io::Result<()> {
     dotenv().ok();
     env_logger::init();
 
+    let port: u16 = env::var("PORT")
+        .unwrap_or_else(|_| "8080".to_string())
+        .parse()
+        .expect("PORT must be a number");
+
     let database_url = std::env::var("DATABASE_URL").expect("DATABASE_URL must be set");
     let pool = match PgPoolOptions::new().max_connections(10).connect(&database_url).await {
         Ok(pool) => {
@@ -46,6 +52,6 @@ async fn main() -> std::io::Result<()> {
             .wrap(cors)
             .wrap(Logger::default())
     })
-        .bind(("127.0.0.1", 8000))?
+        .bind(("127.0.0.1", port))?
         .run().await
 }