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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26
error_handling/src/main.rs
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@ -14,7 +14,6 @@ http errors will be chosen, each with an equal chance of being selected:
use actix_web::{web, App, Error, HttpResponse, HttpServer, ResponseError};
use derive_more::Display; // naming it clearly for illustration purposes
use futures::future::{err, ok, Future};
use rand::{
distributions::{Distribution, Standard},
thread_rng, Rng,
@ -71,32 +70,33 @@ impl ResponseError for CustomError {
}
/// randomly returns either () or one of the 4 CustomError variants
fn do_something_random() -> impl Future<Item = (), Error = CustomError> {
async fn do_something_random() -> Result<(), CustomError> {
let mut rng = thread_rng();
// 20% chance that () will be returned by this function
if rng.gen_bool(2.0 / 10.0) {
ok(())
Ok(())
} else {
err(rand::random::<CustomError>())
Err(rand::random::<CustomError>())
}
}
fn do_something() -> impl Future<Item = HttpResponse, Error = Error> {
do_something_random().from_err().and_then(|_| {
HttpResponse::Ok().body("Nothing interesting happened. Try again.")
})
async fn do_something() -> Result<HttpResponse, Error> {
do_something_random().await?;
Ok(HttpResponse::Ok().body("Nothing interesting happened. Try again."))
}
fn main() -> std::io::Result<()> {
#[actix_rt::main]
async fn main() -> std::io::Result<()> {
std::env::set_var("RUST_LOG", "actix_web=info");
env_logger::init();
HttpServer::new(move || {
App::new().service(
web::resource("/something").route(web::get().to_async(do_something)),
)
App::new()
.service(web::resource("/something").route(web::get().to(do_something)))
})
.bind("127.0.0.1:8088")?
.run()
.start()
.await
}