1 // Copyright (c) 2025 Huawei Device Co., Ltd.
2 // Licensed under the Apache License, Version 2.0 (the "License");
3 // you may not use this file except in compliance with the License.
4 // You may obtain a copy of the License at
5 //
6 // http://www.apache.org/licenses/LICENSE-2.0
7 //
8 // Unless required by applicable law or agreed to in writing, software
9 // distributed under the License is distributed on an "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 // See the License for the specific language governing permissions and
12 // limitations under the License.
13
14 //! This is a simple asynchronous HTTP client example using the
15 //! ylong_http_client crate. It demonstrates creating a client, making a
16 //! request, and reading the response asynchronously.
17
18 use ylong_http_client::async_impl::{Body, Client, DohResolver, Downloader, Request};
19 use ylong_http_client::HttpClientError;
20
main() -> Result<(), HttpClientError>21 fn main() -> Result<(), HttpClientError> {
22 let handle = ylong_runtime::spawn(async move {
23 connect().await.unwrap();
24 });
25
26 let _ = ylong_runtime::block_on(handle);
27 Ok(())
28 }
29
connect() -> Result<(), HttpClientError>30 async fn connect() -> Result<(), HttpClientError> {
31 // Creates a `DoH Resolver`
32 let doh_resolver = DohResolver::new("https://1.12.12.12/dns-query")
33 .add_doh_server("https://120.53.53.53/dns-query");
34
35 // Creates a `async_impl::Client`
36 let doh_client = Client::builder()
37 .dns_resolver(doh_resolver)
38 .build()
39 .unwrap();
40
41 // Sends request and receives a `Response`.
42 let doh_response = doh_client
43 .request(
44 Request::builder()
45 .url("https://www.example.com")
46 .body(Body::empty())?,
47 )
48 .await?;
49
50 // Reads the body of `Response` by using `BodyReader`.
51 let _ = Downloader::console(doh_response).download().await;
52
53 Ok(())
54 }
55