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update: client structure example in README #17

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update: client structure example in README #17

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19 changes: 14 additions & 5 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,19 +8,28 @@ Asynchronous TLS/SSL streams for futures using
### Basic Structure of a Client

```rust
use webpki::DNSNameRef;
use futures_rustls::{ TlsConnector, rustls::ClientConfig };
use webpki_roots::TLS_SERVER_ROOTS;
use futures_rustls::{
TlsConnector,
rustls::{ClientConfig, RootCertStore, pki_types::ServerName},
};

// ...

let mut config = ClientConfig::new();
config.root_store.add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
let mut root_store = RootCertStore::empty();
root_store.extend(TLS_SERVER_ROOTS.iter().cloned());

let config = ClientConfig::builder()
.with_root_certificates(root_store)
.with_no_client_auth();

let config = TlsConnector::from(Arc::new(config));
let dnsname = DNSNameRef::try_from_ascii_str("www.rust-lang.org").unwrap();
let dnsname = ServerName::try_from("www.rust-lang.org").expect("Invalid DNS name.");

let stream = TcpStream::connect(&addr).await?;
let mut stream = config.connect(dnsname, stream).await?;


// ...
```

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