allow no config

web3_proxy/src/bin/web3_proxy_cli/main.rs

@@ -123,6 +123,9 @@ fn main() -> anyhow::Result<()> {
     }
 
     let top_config = if let Some(top_config_path) = cli_config.config.clone() {
+        if top_config_path.is_empty() {
+            None
+        } else {
             let top_config_path = Path::new(&top_config_path)
                 .canonicalize()
                 .context(format!("checking for config at {}", top_config_path))?;
@@ -152,6 +155,7 @@ fn main() -> anyhow::Result<()> {
             }
 
             Some(top_config)
+        }
     } else {
         None
     };
@@ -201,6 +205,8 @@ fn main() -> anyhow::Result<()> {
             // TODO: i think these max at 15 characters
             format!("web3-{}-{}", chain_id, worker_id)
         });
+    } else {
+        rt_builder.enable_all();
     }
 
     // start tokio's async runtime