refactor!: split in modules instead of a single lib file

Cargo.toml

@@ -15,6 +15,18 @@ reqwest = "0.11.20"
 serde = { version = "1.0.188", features = ["derive"] }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
 
+[dependencies.sqlx]
+version = "0.5.7"
+default-features = false
+features = [
+    "runtime-actix-rustls",
+    "macros",
+    "postgres",
+    "uuid",
+    "chrono",
+    "migrate"
+]
+
 [[bin]]
 path = "src/main.rs"
 name = "zero2prod"

src/configurations.rs

@@ -0,0 +1,2 @@
+
+

src/lib.rs

@@ -1,33 +1,3 @@
-use actix_web::{dev::Server, web, App, HttpRequest, HttpResponse, HttpServer, Responder};
-use std::net::TcpListener;
-
-async fn greet(req: HttpRequest) -> impl Responder {
-    let name = req.match_info().get("name").unwrap_or("World");
-    format!("Hello {name}!")
-}
-
-async fn health_check() -> impl Responder {
-    HttpResponse::Ok()
-}
-
-#[derive(serde::Deserialize)]
-struct FormData {
-    email: String,
-    name: String,
-}
-
-async fn subscribe(_form: web::Form<FormData>) -> HttpResponse {
-    HttpResponse::Ok().finish()
-}
-
-pub fn run(listener: TcpListener) -> Result<Server, std::io::Error> {
-    let server = HttpServer::new(|| {
-        App::new()
-            .route("/health_check", web::get().to(health_check))
-            .route("/subscriptions", web::post().to(subscribe))
-    })
-    .listen(listener)?
-    .run();
-
-    Ok(server)
-}
+pub mod configurations;
+pub mod routes;
+pub mod startup;

src/main.rs

@@ -1,6 +1,5 @@
 use std::net::TcpListener;
-
-use zero2prod::run;
+use zero2prod::startup::run;
 
 #[tokio::main]
 async fn main() -> Result<(), std::io::Error> {

src/routes/health_check.rs

@@ -0,0 +1,5 @@
+use actix_web::{HttpResponse, Responder};
+
+pub async fn health_check() -> impl Responder {
+    HttpResponse::Ok()
+}

src/routes/mod.rs

@@ -0,0 +1,5 @@
+mod health_check;
+mod subscriptions;
+
+pub use health_check::*;
+pub use subscriptions::*;

src/routes/subscriptions.rs

@@ -0,0 +1,11 @@
+use actix_web::{web, HttpResponse};
+
+#[derive(serde::Deserialize)]
+pub struct FormData {
+    email: String,
+    name: String,
+}
+
+pub async fn subscribe(_form: web::Form<FormData>) -> HttpResponse {
+    HttpResponse::Ok().finish()
+}

src/startup.rs

@@ -0,0 +1,17 @@
+use std::net::TcpListener;
+
+use actix_web::{dev::Server, web, App, HttpServer};
+
+use crate::routes::{health_check, subscribe};
+
+pub fn run(listener: TcpListener) -> Result<Server, std::io::Error> {
+    let server = HttpServer::new(|| {
+        App::new()
+            .route("/health_check", web::get().to(health_check))
+            .route("/subscriptions", web::post().to(subscribe))
+    })
+    .listen(listener)?
+    .run();
+
+    Ok(server)
+}

tests/health_check.rs

@@ -3,7 +3,7 @@ use std::net::TcpListener;
 fn spawn_app() -> String {
     let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind random port");
     let port = listener.local_addr().unwrap().port();
-    let server = zero2prod::run(listener).expect("Failed to bind address");
+    let server = zero2prod::startup::run(listener).expect("Failed to bind address");
     tokio::spawn(server);
     format!("http://127.0.0.1:{port}")
 }