Front page examples return 'impl Responder'

examples/easy-form-handling/src/main.rs

@@ -1,5 +1,5 @@
 // <easy-form-handling>
-use actix_web::{web, App, HttpResponse, HttpServer};
+use actix_web::{web, App, HttpResponse, HttpServer, Responder};
 use serde::Deserialize;
 
 #[derive(Deserialize)]
@@ -14,11 +14,8 @@ fn index() -> HttpResponse {
         .body(include_str!("../static/form.html"))
 }
 
-fn register(params: web::Form<Register>) -> actix_web::Result<HttpResponse> {
-    Ok(HttpResponse::Ok().body(format!(
-        "Hello {} from {}!",
-        params.username, params.country
-    )))
+fn register(params: web::Form<Register>) -> impl Responder {
+    format!("Hello {} from {}!", params.username, params.country)
 }
 
 fn main() {

examples/main-example/src/main.rs

@@ -1,9 +1,9 @@
 // <main-example>
-use actix_web::{web, App, HttpRequest, HttpResponse, HttpServer};
+use actix_web::{web, App, HttpRequest, HttpServer, Responder};
 
-fn greet(req: HttpRequest) -> HttpResponse {
+fn greet(req: HttpRequest) -> impl Responder {
     let name = req.match_info().get("name").unwrap_or("World");
-    HttpResponse::Ok().body(format!("Hello {}!", &name))
+    format!("Hello {}!", &name)
 }
 
 fn main() {

examples/powerful-extractors/src/main.rs

@@ -1,4 +1,4 @@
-use actix_web::{web, App, HttpResponse, HttpServer};
+use actix_web::{web, App, HttpResponse, HttpServer, Responder};
 use serde::{Deserialize, Serialize};
 
 #[derive(Deserialize, Serialize)]
@@ -20,9 +20,9 @@ fn store_event_in_db(timestamp: f64, kind: String, tags: Vec<String>) -> Event {
     }
 }
 
-fn capture_event(evt: web::Json<Event>) -> actix_web::Result<HttpResponse> {
+fn capture_event(evt: web::Json<Event>) -> impl Responder {
     let new_event = store_event_in_db(evt.timestamp, evt.kind.clone(), evt.tags.clone());
-    Ok(HttpResponse::Ok().json(new_event))
+    format!("got event {}", new_event.id.unwrap())
 }
 
 fn index() -> HttpResponse {

examples/request-routing/src/main.rs

@@ -1,12 +1,12 @@
 // <request-routing>
-use actix_web::{web, App, HttpRequest, HttpResponse, HttpServer};
+use actix_web::{web, App, HttpRequest, HttpServer, Responder};
 
-fn index(_req: HttpRequest) -> HttpResponse {
-    HttpResponse::Ok().body("Hello from the index page.")
+fn index(_req: HttpRequest) -> impl Responder {
+    "Hello from the index page."
 }
 
-fn hello(path: web::Path<String>) -> HttpResponse {
-    HttpResponse::Ok().body(format!("Hello {}!", &path))
+fn hello(path: web::Path<String>) -> impl Responder {
+    format!("Hello {}!", &path)
 }
 
 fn main() {