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update json example

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This commit is contained in:
Nikolay Kim 2018-04-04 08:08:31 -07:00
parent df21892b5b
commit c273b7ac3f
1 changed files with 9 additions and 6 deletions
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15
examples/json/src/main.rs
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@ -21,7 +21,7 @@ struct MyObj {
number: i32, number: i32,
} }
/// This handler uses `HttpRequest::json()` for loading serde json object. /// This handler uses `HttpRequest::json()` for loading json object.
fn index(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> { fn index(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> {
req.json() req.json()
.from_err() // convert all errors into `Error` .from_err() // convert all errors into `Error`
@ -32,7 +32,7 @@ fn index(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> {
.responder() .responder()
} }
/// This handler uses `With` helper for loading serde json object. /// This handler uses json extractor
fn extract_item(item: Json<MyObj>) -> HttpResponse { fn extract_item(item: Json<MyObj>) -> HttpResponse {
println!("model: {:?}", &item); println!("model: {:?}", &item);
HttpResponse::Ok().json(item.0) // <- send response HttpResponse::Ok().json(item.0) // <- send response
@ -40,7 +40,7 @@ fn extract_item(item: Json<MyObj>) -> HttpResponse {
const MAX_SIZE: usize = 262_144; // max payload size is 256k const MAX_SIZE: usize = 262_144; // max payload size is 256k
/// This handler manually load request payload and parse serde json /// This handler manually load request payload and parse json object
fn index_manual(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> { fn index_manual(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Error>> {
// HttpRequest is stream of Bytes objects // HttpRequest is stream of Bytes objects
req req
@ -86,15 +86,18 @@ fn index_mjsonrust(req: HttpRequest) -> Box<Future<Item=HttpResponse, Error=Erro
fn main() { fn main() {
::std::env::set_var("RUST_LOG", "actix_web=info"); ::std::env::set_var("RUST_LOG", "actix_web=info");
let _ = env_logger::init(); env_logger::init();
let sys = actix::System::new("json-example"); let sys = actix::System::new("json-example");
let _ = server::new(|| { let _ = server::new(|| {
App::new() App::new()
// enable logger // enable logger
.middleware(middleware::Logger::default()) .middleware(middleware::Logger::default())
.resource("/extractor/{name}/{number}/", .resource("/extractor", |r| {
|r| r.method(http::Method::GET).with(extract_item)) r.method(http::Method::POST)
.with(extract_item)
.limit(4096); // <- limit size of the payload
})
.resource("/manual", |r| r.method(http::Method::POST).f(index_manual)) .resource("/manual", |r| r.method(http::Method::POST).f(index_manual))
.resource("/mjsonrust", |r| r.method(http::Method::POST).f(index_mjsonrust)) .resource("/mjsonrust", |r| r.method(http::Method::POST).f(index_mjsonrust))
.resource("/", |r| r.method(http::Method::POST).f(index))}) .resource("/", |r| r.method(http::Method::POST).f(index))})