concurrency

src/main.rs

@@ -1,7 +1,9 @@
 use color_eyre::Report;
 use reqwest::Client;
+use tokio::time::sleep;
 use tracing::info;
 use tracing_subscriber::EnvFilter;
+use std::time::Duration;
 
 
 pub const URL_1: &str = "https://fasterthanli.me/articles/whats-in-the-box";
@@ -12,12 +14,14 @@ async fn main() -> Result<(), Report> {
     setup()?;
 
     let client = Client::new();
+    let leaked_client = Box::leak(Box::new(client));
 
-    let fut1 = fetch_thing(&client, URL_1);
-    let fut2 = fetch_thing(&client, URL_2);
+    let fut1 = fetch_thing(leaked_client, URL_1);
+    tokio::spawn(fut1);
+    let fut2 = fetch_thing(leaked_client, URL_2);
+    tokio::spawn(fut2);
 
-    fut1.await?;
-    fut2.await?;
+    tokio::time::sleep(Duration::from_secs(1)).await;
 
     Ok(())
 }
@@ -45,10 +49,10 @@ fn setup() -> Result<(), Report> {
 // }
 //
 use std::future::Future;
-fn fetch_thing<'a> (
-    client: &'a Client,
-    url: &'a str,
-) -> impl Future<Output = Result<(), Report>> + 'a {
+fn fetch_thing (
+    client: &'static Client,
+    url: &'static str,
+) -> impl Future<Output = Result<(), Report>> + 'static {
     async move {
         let res = client.get(url).send().await?.error_for_status()?;
         info!(%url, content_type = ?res.headers().get("content-type"), "Got a response!");