add json route

ActixAPI/src/main.rs

@@ -5,7 +5,7 @@ use magick_rust::MagickWand;
 
 #[get("/status/ok")]
 async fn hello() -> impl Responder {
-    HttpResponse::Ok().body("{\"status\": 200}")
+    HttpResponse::Ok()
 }
 
 async fn static_serve(req: HttpRequest) -> Result<NamedFile> {
@@ -29,6 +29,17 @@ async fn simulation_harmonic_progression(req: HttpRequest) -> impl Responder {
     HttpResponse::Ok().body(format!("{}", sum))
 }
 
+#[get("/simulation/json")]
+async fn simulation_json() -> impl Responder {
+    // body = {"message": "Hello World"}
+    let body = serde_json::json!({
+        "message": "Hello World!"
+    });
+
+    HttpResponse::Ok()
+        .json(body)
+}
+
 #[get("/image/load-small-image")]
 async fn load_small_image() -> Result<NamedFile> {
     let real_path = "static/small-image.png";
@@ -89,6 +100,7 @@ async fn main() -> std::io::Result<()> {
             .service(save_big_image)
             .service(blur_image)
             .service(simulation_harmonic_progression)
+            .service(simulation_json)
             .app_data(web::PayloadConfig::new(1024 * 1024 * 1024))
     })
     .bind(("0.0.0.0", 5000))?