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migrate http proxy examples

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This commit is contained in:
Nikolay Kim
2019-03-26 23:33:13 -07:00
parent 53fc2221ef
commit 48b8e7c335
9 changed files with 125 additions and 177 deletions
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59
async_ex1/src/main.rs
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@ -23,7 +23,7 @@ extern crate serde_derive;
use std::collections::HashMap;
use std::io;
use actix_http::client;
use actix_web::client::Client;
use actix_web::web::BytesMut;
use actix_web::{web, App, Error, HttpResponse, HttpServer};
use futures::{Future, Stream};
@ -54,14 +54,14 @@ struct HttpBinResponse {
// -----------------------------------------------------------------------
/// post json to httpbin, get it back in the response body, return deserialized
fn step_x_v1(data: SomeData) -> Box<Future<Item = SomeData, Error = Error>> {
let mut connector = client::Connector::new().service();
fn step_x_v1(
data: SomeData,
client: &Client,
) -> Box<Future<Item = SomeData, Error = Error>> {
Box::new(
client::ClientRequest::post("https://httpbin.org/post")
.json(data)
.unwrap()
.send(&mut connector)
client
.post("https://httpbin.org/post")
.send_json(data)
.map_err(Error::from) // <- convert SendRequestError to an Error
.and_then(|resp| {
resp // <- this is MessageBody type, resolves to complete body
@ -81,17 +81,20 @@ fn step_x_v1(data: SomeData) -> Box<Future<Item = SomeData, Error = Error>> {
fn create_something_v1(
some_data: web::Json<SomeData>,
client: web::Data<Client>,
) -> Box<Future<Item = HttpResponse, Error = Error>> {
Box::new(step_x_v1(some_data.into_inner()).and_then(|some_data_2| {
step_x_v1(some_data_2).and_then(|some_data_3| {
step_x_v1(some_data_3).and_then(|d| {
Ok(HttpResponse::Ok()
.content_type("application/json")
.body(serde_json::to_string(&d).unwrap())
.into())
Box::new(
step_x_v1(some_data.into_inner(), &client).and_then(move |some_data_2| {
step_x_v1(some_data_2, &client).and_then(move |some_data_3| {
step_x_v1(some_data_3, &client).and_then(|d| {
Ok(HttpResponse::Ok()
.content_type("application/json")
.body(serde_json::to_string(&d).unwrap())
.into())
})
})
})
}))
}),
)
}
// ---------------------------------------------------------------
@ -99,13 +102,13 @@ fn create_something_v1(
// ---------------------------------------------------------------
/// post json to httpbin, get it back in the response body, return deserialized
fn step_x_v2(data: SomeData) -> impl Future<Item = SomeData, Error = Error> {
let mut connector = client::Connector::new().service();
client::ClientRequest::post("https://httpbin.org/post")
.json(data)
.unwrap()
.send(&mut connector)
fn step_x_v2(
data: SomeData,
client: &Client,
) -> impl Future<Item = SomeData, Error = Error> {
client
.post("https://httpbin.org/post")
.send_json(data)
.map_err(Error::from) // <- convert SendRequestError to an Error
.and_then(|resp| {
resp.from_err()
@ -122,10 +125,11 @@ fn step_x_v2(data: SomeData) -> impl Future<Item = SomeData, Error = Error> {
fn create_something_v2(
some_data: web::Json<SomeData>,
client: web::Data<Client>,
) -> impl Future<Item = HttpResponse, Error = Error> {
step_x_v2(some_data.into_inner()).and_then(|some_data_2| {
step_x_v2(some_data_2).and_then(|some_data_3| {
step_x_v2(some_data_3).and_then(|d| {
step_x_v2(some_data.into_inner(), &client).and_then(move |some_data_2| {
step_x_v2(some_data_2, &client).and_then(move |some_data_3| {
step_x_v2(some_data_3, &client).and_then(|d| {
Ok(HttpResponse::Ok()
.content_type("application/json")
.body(serde_json::to_string(&d).unwrap())
@ -141,6 +145,7 @@ fn main() -> io::Result<()> {
HttpServer::new(|| {
App::new()
.data(Client::default())
.service(
web::resource("/something_v1")
.route(web::post().to(create_something_v1)),