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, DefaultDnsResolver, 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 `Default Dns Resolver`.
32 let default_dns_resolver = DefaultDnsResolver::new();
33
34 // Creates a `async_impl::Client`
35 let default_dns_client = Client::builder()
36 .dns_resolver(default_dns_resolver)
37 .build()
38 .unwrap();
39
40 let default_dns_response = default_dns_client
41 .request(
42 Request::builder()
43 .url("https://www.example.com")
44 .body(Body::empty())?,
45 )
46 .await?;
47
48 // Reads the body of `Response` by using `BodyReader`.
49 let _ = Downloader::console(default_dns_response).download().await;
50
51 Ok(())
52 }
53