v3 examples (#364)

json/Cargo.toml

@@ -2,18 +2,16 @@
 name = "json-example"
 version = "0.1.0"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
-workspace = ".."
 edition = "2018"
 
 [dependencies]
-actix-web = "2.0.0"
-actix-rt = "1.0.0"
+actix-web = "3"
 actix-service = "1.0.0"
-
-bytes = "0.5.2"
 futures = "0.3.1"
 env_logger = "0.7"
-
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 json = "0.12"
+
+[dev-dependencies]
+actix-rt = "1"

json/src/main.rs

@@ -1,7 +1,6 @@
 use actix_web::{
     error, middleware, web, App, Error, HttpRequest, HttpResponse, HttpServer,
 };
-use bytes::{Bytes, BytesMut};
 use futures::StreamExt;
 use json::JsonValue;
 use serde::{Deserialize, Serialize};
@@ -31,7 +30,7 @@ const MAX_SIZE: usize = 262_144; // max payload size is 256k
 /// This handler manually load request payload and parse json object
 async fn index_manual(mut payload: web::Payload) -> Result<HttpResponse, Error> {
     // payload is a stream of Bytes objects
-    let mut body = BytesMut::new();
+    let mut body = web::BytesMut::new();
     while let Some(chunk) = payload.next().await {
         let chunk = chunk?;
         // limit max size of in-memory payload
@@ -47,7 +46,7 @@ async fn index_manual(mut payload: web::Payload) -> Result<HttpResponse, Error>
 }
 
 /// This handler manually load request payload and parse json-rust
-async fn index_mjsonrust(body: Bytes) -> Result<HttpResponse, Error> {
+async fn index_mjsonrust(body: web::Bytes) -> Result<HttpResponse, Error> {
     // body is loaded, now we can deserialize json-rust
     let result = json::parse(std::str::from_utf8(&body).unwrap()); // return Result
     let injson: JsonValue = match result {
@@ -59,7 +58,7 @@ async fn index_mjsonrust(body: Bytes) -> Result<HttpResponse, Error> {
         .body(injson.dump()))
 }
 
-#[actix_rt::main]
+#[actix_web::main]
 async fn main() -> std::io::Result<()> {
     std::env::set_var("RUST_LOG", "actix_web=info");
     env_logger::init();