message: show error is address is invalid
diff: @@ -21,7 +21,10 @@ pub async fn service_main() {
  println!("Remote URL : {}", &config.remote_node.url);
  println!("Local address : {}", &config.service.address);
  - let addr: SocketAddr = config.service.address.parse().expect("Invalid address");
  + let addr: SocketAddr = config.service.address.parse().unwrap_or_else(|e| {
  + println!("Address {} is invalid: {}", &config.service.address, e);
  + process::exit(1);
  + });
  // Define path handlers
  let path_v0_get = warp::path!("v0").and(warp::get()).and_then(get_api_v0);
  