Completed 3.7.3.1

Signed-off-by: Anthony M. Bonafide <AnthonyMBonafide@gmail.com>

Cargo.toml

@@ -13,6 +13,7 @@ name = "zero2prod"
 [dependencies]
 actix-web = "4"
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
+serde = { version = "1", features = ["derive"] }
 
 [dev-dependencies]
 reqwest = "0.11"

src/lib.rs

@@ -1,15 +1,28 @@
 use std::net::TcpListener;
 
-use actix_web::{dev::Server, web, App, HttpResponse, HttpServer, Responder};
+use actix_web::{dev::Server, web, App, HttpResponse, HttpServer};
+#[derive(serde::Deserialize, serde::Serialize)]
+struct FormData {
+    name: String,
+    email: String,
+}
+
+async fn health_check() -> HttpResponse {
+    HttpResponse::Ok().finish()
+}
 
-async fn health_check() -> impl Responder {
+async fn subscribe(_form: web::Form<FormData>) -> HttpResponse {
     HttpResponse::Ok().finish()
 }
 
 pub fn run(tcp_listener: TcpListener) -> Result<Server, std::io::Error> {
-    let server = HttpServer::new(|| App::new().route("/health_check", web::get().to(health_check)))
-        .listen(tcp_listener)?
-        .run();
+    let server = HttpServer::new(|| {
+        App::new()
+            .route("/health_check", web::get().to(health_check))
+            .route("/subscribe", web::post().to(subscribe))
+    })
+    .listen(tcp_listener)?
+    .run();
 
     Ok(server)
 }

tests/health_check.rs

@@ -16,6 +16,49 @@ async fn health_check_works() {
     assert_eq!(Some(0), response.content_length());
 }
 
+#[tokio::test]
+async fn subscribe_returns_200_for_valid_form_data() {
+    let address = spawn_app();
+    let client = reqwest::Client::new();
+
+    let body = "name=le%20guin&email=ursula_le_guin%40gmail.com";
+    let response = client
+        .post(&format!("{}/subscribe", &address))
+        .header("Content-Type", "application/x-www-form-urlencoded")
+        .body(body)
+        .send()
+        .await
+        .expect("Failed to execute request");
+
+    assert_eq!(200, response.status().as_u16())
+}
+#[tokio::test]
+async fn subscribe_returns_400_for_missing_form_data() {
+    let address = spawn_app();
+    let client = reqwest::Client::new();
+    let test_cases = vec![
+        ("name=le%20guin", "missing email"),
+        ("email=ursla_le_guin%40gmail.com", "missing name"),
+        ("", "missing both name and email"),
+    ];
+
+    for (invalid_body, error_message) in test_cases {
+        let response = client
+            .post(&format!("{}/subscribe", &address))
+            .header("Content-Type", "application/x-www-form-urlencoded")
+            .body(invalid_body)
+            .send()
+            .await
+            .expect("Failed to execute request");
+
+        assert_eq!(
+            400,
+            response.status().as_u16(),
+            "The API did not fail with a 400 when the payload was {}",
+            error_message
+        )
+    }
+}
 fn spawn_app() -> String {
     let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind port");
     let port = listener.local_addr().unwrap().port();