Set user-agent string and print debug output only in debug builds.

src/main.rs

@@ -10,6 +10,11 @@ fn request(show_id: i32, last: i8) -> Result<serde_json::Value, Box<dyn std::err
         show_id, last
     );
     let response = Client::builder()
+        .user_agent(concat!(
+            env!("CARGO_PKG_NAME"),
+            "/",
+            env!("CARGO_PKG_VERSION")
+        ))
         .build()?
         .post(GRAPHQL_API_URL)
         .header("Content-Type", "application/json")
@@ -39,12 +44,11 @@ fn main() {
     let episodes = &res["data"]["programSet"]["items"]["nodes"]
         .as_array()
         .unwrap();
-    dbg!(episodes);
+    #[cfg(debug_assertions)] dbg!(episodes);
     let urls: Vec<String> = episodes
         .into_iter()
         .flat_map(|episode| episode["audios"].as_array().cloned().unwrap_or_default())
         .flat_map(|audio| audio["downloadUrl"].as_str().map(|s| s.to_string()))
         .collect();
     urls.iter().for_each(|u| println!("{}", &u));
-        
 }