fixed compilation errors

src/main.rs

@@ -1,12 +1,20 @@
 use actix_web::{web, App, HttpRequest, HttpServer, Responder};
+include!("handlers/locations.rs");
 
-async fn index() -> impl Responder { "Connection successful" }
+async fn index(req: HttpRequest) -> impl Responder { "Connection successful" }
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
     HttpServer::new(|| {
         App::new()
-            .service(web::resource("/").to(index))
+            .route("/", web::get().to(index)) 
+            .service(
+                web::scope("/api/v1")
+                    .service(web::resource("/locations").to(|| {
+                        get_locations()
+                    }))
+                    .service(web::resource("/locations").route(web::post().to(create_location)))
+            )
     })
     .bind("127.0.0.1:8080")?
     .run()