feat: rust assets demo

.gitignore

@@ -2,7 +2,10 @@
 /build/
 /.idea/
 /assets/*.txt
+
 /cmake-build/
 /cmake-build-debug/
 /cmake-build-release/
+
+/src/assets/target/
 /src/to-json/target/

src/assets/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "assets"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+env_logger = "0.10.0"
+log = "0.4.17"
+reqwest = { version = "0.11.14", features = ["blocking", "deflate", "gzip", "brotli"] }
+tokio = { version = "1.26.0", features = ["macros", "rt-multi-thread"] }

src/assets/src/main.rs

@@ -0,0 +1,51 @@
+use reqwest::Client;
+use std::env::set_var;
+use std::time::Duration;
+
+const TIMEOUT: u64 = 60;
+
+async fn asset_fetch(url: &str) -> Result<String, String> {
+    let client = Client::builder()
+        .timeout(Duration::from_secs(TIMEOUT))
+        .build().unwrap();
+    match client.get(url).send().await {
+        Ok(response) => {
+            match response.text().await {
+                Ok(text) => {
+                    Ok(text)
+                },
+                Err(err) => Err(format!("http content error: {}", err))
+            }
+        },
+        Err(err) => Err(format!("http request failed: {}", err))
+    }
+}
+
+async fn demo() {
+
+    println!("demo function start");
+
+    match asset_fetch("https://res.343.re/Share/cleardns/gfwlist.txt").await {
+        Ok(data) => {
+            // println!("{}", data);
+        },
+        Err(err) => println!("error -> {}", err)
+    }
+
+
+    println!("demo function exit");
+
+}
+
+#[tokio::main]
+async fn main() {
+
+    // set_var("RUST_LOG", "debug");
+    set_var("RUST_LOG", "trace");
+    env_logger::init();
+
+    demo().await;
+
+    println!("end demo");
+
+}