Typo

example-usage/client/src/main.rs

@@ -0,0 +1,48 @@
+use std::fs;
+
+use mtp_client::{ClientConfig, MTPClient};
+use mtp_codec::{CommunicationType, CommunicationValue, DataType, DataValue};
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let cert_pem = fs::read("server.pem")
+        .expect("Missing server.pem server generates it");
+
+    println!("Connecting to 127.0.0.1:8080 ...");
+
+    let config = ClientConfig {
+        url: "https://127.0.0.1:8080".into(),
+        server_cert: Some(cert_pem),
+    };
+
+    let conn = MTPClient::connect(config, 1001).await?;
+    println!("Connected (version {})", conn.version);
+
+    let timestamp = std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .unwrap()
+        .as_secs();
+
+    let greeting = CommunicationValue::new(CommunicationType::Ping)
+        .add_typed_default(DataType::Description, DataValue::Str("Hello MTP!".into()))
+        .add_typed_default(DataType::Timestamp, DataValue::UnsignedNumber(timestamp as u128))
+        .add_typed_default(DataType::Data, DataValue::UnsignedNumber(42))
+        .with_sender(1001);
+
+    println!("Sending: {greeting}");
+    conn.sender.send(&greeting).await?;
+
+    match conn.receiver.receive().await {
+        Ok(msg) => {
+            println!("Received: {msg}");
+        }
+        Err(e) => {
+            eprintln!("Receive error: {e}");
+        }
+    }
+
+    conn.sender.close();
+    println!("\nDone");
+
+    Ok(())
+}