actix/examples
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upgrade to 2.0 alpha.3

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This commit is contained in:
Nikolay Kim
2019-12-07 23:59:24 +06:00
parent e7f7175b7b
commit 3127352797
100 changed files with 1075 additions and 1107 deletions
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41
json_error/src/main.rs
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@ -1,16 +1,12 @@
// This example is meant to show how to automatically generate a json error response when something goes wrong.
use actix::System;
use actix_web::http::StatusCode;
use actix_web::web::{get, resource, HttpRequest, HttpResponse};
use actix_web::{App, HttpServer, ResponseError};
use futures::future::err;
use futures::Future;
use serde::Serialize;
use serde_json::{json, to_string_pretty};
use std::fmt::{Display, Formatter, Result as FmtResult};
use std::io;
use actix_web::http::StatusCode;
use actix_web::{web, App, HttpServer, ResponseError};
use serde::Serialize;
use serde_json::{json, to_string_pretty};
#[derive(Debug, Serialize)]
struct Error {
msg: String,
@ -25,29 +21,30 @@ impl Display for Error {
impl ResponseError for Error {
// builds the actual response to send back when an error occurs
fn render_response(&self) -> HttpResponse {
fn error_response(&self) -> web::HttpResponse {
let err_json = json!({ "error": self.msg });
HttpResponse::build(StatusCode::from_u16(self.status).unwrap()).json(err_json)
web::HttpResponse::build(StatusCode::from_u16(self.status).unwrap())
.json(err_json)
}
}
fn index(_: HttpRequest) -> impl Future<Item = HttpResponse, Error = Error> {
err(Error {
async fn index() -> Result<web::HttpResponse, Error> {
Err(Error {
msg: "an example error message".to_string(),
status: 400,
})
}
fn main() -> io::Result<()> {
let sys = System::new("json_error_example");
#[actix_rt::main]
async fn main() -> io::Result<()> {
let ip_address = "127.0.0.1:8000";
HttpServer::new(|| App::new().service(resource("/").route(get().to_async(index))))
.bind(ip_address)
.expect("Can not bind to port 8000")
.start();
println!("Running server on {}", ip_address);
sys.run()
HttpServer::new(|| {
App::new().service(web::resource("/").route(web::get().to(index)))
})
.bind(ip_address)
.expect("Can not bind to port 8000")
.start()
.await
}