diff --git a/.cargo/config.toml b/.cargo/config.toml
index 11b23cc..b29bf18 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -4,5 +4,5 @@
 
 # [target.i686-pc-windows-msvc]
 # rustflags = ["-C", "target-feature=+crt-static"]
-[term]     # whether cargo output is quiet
-verbose = true
\ No newline at end of file
+# [term]     # whether cargo output is quiet
+# verbose = true
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index a70cabe..e53cc51 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,7 +4,7 @@ use config::convert_config;
 use log::{error, info};
 use napi::{
   bindgen_prelude::*,
-  threadsafe_function::{ThreadsafeFunction, ThreadsafeFunctionCallMode, UnknownReturnValue},
+  threadsafe_function::{ThreadsafeFunction, ThreadsafeFunctionCallMode},
 };
 use napi_derive::napi;
 
@@ -19,11 +19,33 @@ use parking_lot::{Condvar, Mutex};
 use primitives::block_header::CIP112_TRANSITION_HEIGHT;
 use std::thread;
 use std::{env, sync::Arc};
-use tempfile::tempdir;
+use tempfile::{tempdir, TempDir};
 mod config;
 
 use log4rs;
 
+fn setup_env(
+  config: config::ConfluxConfig,
+  temp_dir: &TempDir,
+) -> Result<client::common::Configuration> {
+  // we need set the work dir to temp dir
+  let temp_dir_path = temp_dir.path();
+  let conf = convert_config(config, &temp_dir_path);
+  info!("node work dir: {:?}", temp_dir_path);
+  env::set_current_dir(temp_dir_path).unwrap();
+
+  if let Some(ref log_conf) = conf.raw_conf.log_conf {
+    log4rs::init_file(log_conf, Default::default())
+      .map_err(|e| {
+        error!("failed to initialize log with log config file: {:?}", e);
+        format!("failed to initialize log with log config file: {:?}", e)
+      })
+      .unwrap();
+  };
+
+  Ok(conf)
+}
+
 #[napi]
 pub struct ConfluxNode {
   exit_sign: Arc<(Mutex<bool>, Condvar)>,
@@ -49,21 +71,8 @@ impl ConfluxNode {
     let exit_sign = self.exit_sign.clone();
 
     thread::spawn(move || {
-      // we need set the work dir to temp dir
       let temp_dir = tempdir()?;
-      let temp_dir_path = temp_dir.path();
-      let conf = convert_config(config, &temp_dir_path);
-      let temp_dir = tempdir().unwrap();
-      env::set_current_dir(temp_dir.path()).unwrap();
-
-      if let Some(ref log_conf) = conf.raw_conf.log_conf {
-        log4rs::init_file(log_conf, Default::default())
-          .map_err(|e| {
-            error!("failed to initialize log with log config file: {:?}", e);
-            format!("failed to initialize log with log config file: {:?}", e)
-          })
-          .unwrap();
-      }
+      let conf = setup_env(config, &temp_dir)?;
 
       let client_handle: Box<dyn ClientTrait>;
       client_handle = match conf.node_type() {