update examples to v4 (#258)

examples/requests/Cargo.toml

@@ -6,6 +6,6 @@ edition = "2018"
 [dependencies]
 serde = "1.0"
 serde_json = "1.0"
-actix-web = "3"
+actix-web = "4"
 futures = "0.3.1"
 actix-multipart = "0.3"

examples/requests/src/main.rs

@@ -20,7 +20,7 @@ async fn index(info: web::Json<Info>) -> Result<String> {
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
     HttpServer::new(|| App::new().route("/", web::post().to(index)))
-        .bind("127.0.0.1:8080")?
+        .bind(("127.0.0.1", 8080))?
         .run()
         .await
 }

examples/requests/src/manual.rs

@@ -35,7 +35,7 @@ async fn main() -> std::io::Result<()> {
     use actix_web::HttpServer;
 
     HttpServer::new(|| App::new().service(index_manual))
-        .bind("127.0.0.1:8080")?
+        .bind(("127.0.0.1", 8080))?
         .run()
         .await
 }

examples/requests/src/streaming.rs

@@ -20,7 +20,7 @@ async fn main() -> std::io::Result<()> {
     use actix_web::{App, HttpServer};
 
     HttpServer::new(|| App::new().service(index))
-        .bind("127.0.0.1:8080")?
+        .bind(("127.0.0.1", 8080))?
         .run()
         .await
 }

examples/requests/src/urlencoded.rs

@@ -18,7 +18,7 @@ async fn main() -> std::io::Result<()> {
     use actix_web::{App, HttpServer};
 
     HttpServer::new(|| App::new().service(index))
-        .bind("127.0.0.1:8080")?
+        .bind(("127.0.0.1", 8080))?
         .run()
         .await
 }