diff --git a/grpc/scripts/gen.sh b/grpc/scripts/gen.sh
index 7491f07..50b34a8 100755
--- a/grpc/scripts/gen.sh
+++ b/grpc/scripts/gen.sh
@@ -1,17 +1,20 @@
 #!/usr/bin/env bash
 
 # check pb dir
-pb_dir="$(cd "$(dirname $0)";pwd)/../pb"
+pb_dir="$(
+  cd "$(dirname $0)"
+  pwd
+)/../pb"
 if [ ! -d $pb_dir ]; then
-    echo "pb dir $pb_dir does not exist in grpc folder"
-    exit
+  echo "pb dir $pb_dir does not exist in grpc folder"
+  exit
 fi
 cd $pb_dir
 
 # check protoc
-which protoc > /dev/null 
-if [ $? -ne 0 ];then
- echo "missing protoc" && exit
+which protoc >/dev/null
+if [ $? -ne 0 ]; then
+  echo "missing protoc" && exit
 fi
 
 gen_dir="$pb_dir/../gen"
@@ -22,99 +25,98 @@ cmd=protoc
 async_tag=""
 
 # check all arguments
-for aug in $@
-do
-    if [ $aug == "-a" ]; then
-        async_tag="&"
+for aug in $@; do
+  if [ $aug == "-a" ]; then
+    async_tag="&"
+  fi
+  if [ $aug == "--async" ]; then
+    async_tag="&"
+  fi
+  if [ $aug == "go" ]; then
+    plugin=protoc-gen-go
+    which $plugin >/dev/null
+    if [ $? -ne 0 ]; then
+      echo "missing plugin: $plugin" && exit
     fi
-    if [ $aug == "--async" ]; then
-        async_tag="&"
+    vplugin=protoc-gen-govalidators
+    which $vplugin >/dev/null
+    if [ $? -ne 0 ]; then
+      echo "missing plugin: $vplugin" && exit
     fi
-    if [ $aug == "go" ]; then
-        plugin=protoc-gen-go
-        which $plugin > /dev/null
-        if [ $? -ne 0 ];then
-            echo "missing plugin: $plugin" && exit
-        fi
-        vplugin=protoc-gen-govalidators
-        which $vplugin > /dev/null
-        if [ $? -ne 0 ];then
-            echo "missing plugin: $vplugin" && exit
-        fi
-        out="$gen_dir/go"
-        if [ ! -d $out ]; then
-            mkdir -p $out
-        fi
-        echo "Generating Go code"
-        $cmd \
-          --go_out=$out \
-          --go-grpc_out=$out \
-          $pb_files \
-          $async_tag
+    out="$gen_dir/go"
+    if [ ! -d $out ]; then
+      mkdir -p $out
     fi
-    if [ $aug == "gohttp" ]; then
-        plugin=protoc-gen-grpc-gateway
-        which $plugin > /dev/null
-        if [ $? -ne 0 ];then
-            echo "missing plugin: $plugin" && exit
-        fi
-        out="$gen_dir/go"
-        if [ ! -d $out ]; then
-            mkdir -p $out
-        fi
-        echo "Generating Go HTTP code"
-        $cmd \
-          --grpc-gateway_out $out \
-          --grpc-gateway_opt grpc_api_configuration=bdware/bdledger/api/grpc-gateway.yml \
-          --grpc-gateway_opt logtostderr=true \
-          --openapiv2_out ../../docs/openapiv2 \
-          --openapiv2_opt grpc_api_configuration=bdware/bdledger/api/grpc-gateway.yml \
-          --openapiv2_opt logtostderr=true \
-          $pb_files \
-          $async_tag
+    echo "Generating Go code"
+    $cmd \
+      --go_out=$out \
+      --go-grpc_out=$out \
+      $pb_files \
+      $async_tag
+  fi
+  if [ $aug == "gohttp" ]; then
+    plugin=protoc-gen-grpc-gateway
+    which $plugin >/dev/null
+    if [ $? -ne 0 ]; then
+      echo "missing plugin: $plugin" && exit
     fi
-    if [ $aug == "nodejs" ]; then
-      npmBinPath=$(npm bin)
-      jsCmd=$npmBinPath/grpc_tools_node_protoc
-      pluginPath=$npmBinPath/protoc-gen-ts
-      out="$gen_dir/nodejs"
-      if [ ! -d $out ]; then
-          mkdir -p $out
-      fi
-      echo "Generating Node.js code & TypeScript definitions"
-      $jsCmd \
-        --plugin=protoc-gen-ts=$pluginPath \
-        --js_out=import_style=commonjs,binary:$out \
-        --grpc_out=grpc_js:$out \
-        --ts_out=grpc_js:$out \
-        $pb_files $emptypb_file \
-        $async_tag
+    out="$gen_dir/go"
+    if [ ! -d $out ]; then
+      mkdir -p $out
     fi
-    if [ $aug == "docs" ]; then
-        plugin=protoc-gen-ts
-        plugin_path=$(which $plugin)
-        if [ $? -ne 0 ];then
-            echo "missing plugin: $plugin" && exit
-        fi
-        out="$pb_dir/../../docs"
-        if [ ! -d $out ]; then
-            mkdir -p $out
-        fi
-        echo "Generating documentations"
-        $cmd \
-          --doc_out=$out \
-          --doc_opt=html,apis.html \
-          $pb_files $emptypb_file \
-          $async_tag
-        $cmd \
-          --doc_out=$out \
-          --doc_opt=markdown,apis.md \
-          $pb_files $emptypb_file \
-          $async_tag
-        $cmd \
-          --doc_out=$out \
-          --doc_opt=json,apis.json \
-          $pb_files $emptypb_file \
-          $async_tag
+    echo "Generating Go HTTP code"
+    $cmd \
+      --grpc-gateway_out $out \
+      --grpc-gateway_opt grpc_api_configuration=bdware/bdledger/api/grpc-gateway.yml \
+      --grpc-gateway_opt logtostderr=true \
+      --openapiv2_out ../../docs/openapiv2 \
+      --openapiv2_opt grpc_api_configuration=bdware/bdledger/api/grpc-gateway.yml \
+      --openapiv2_opt logtostderr=true \
+      $pb_files \
+      $async_tag
+  fi
+  if [ $aug == "nodejs" ]; then
+    npmBinPath=$(npm bin)
+    jsCmd=$npmBinPath/grpc_tools_node_protoc
+    pluginPath=$npmBinPath/protoc-gen-ts
+    out="$gen_dir/nodejs"
+    if [ ! -d $out ]; then
+      mkdir -p $out
     fi
+    echo "Generating Node.js code & TypeScript definitions"
+    $jsCmd \
+      --plugin=protoc-gen-ts=$pluginPath \
+      --js_out=import_style=commonjs,binary:$out \
+      --grpc_out=grpc_js:$out \
+      --ts_out=grpc_js:$out \
+      $pb_files $emptypb_file \
+      $async_tag
+  fi
+  if [ $aug == "docs" ]; then
+    plugin=protoc-gen-ts
+    plugin_path=$(which $plugin)
+    if [ $? -ne 0 ]; then
+      echo "missing plugin: $plugin" && exit
+    fi
+    out="$pb_dir/../../docs"
+    if [ ! -d $out ]; then
+      mkdir -p $out
+    fi
+    echo "Generating documentations"
+    $cmd \
+      --doc_out=$out \
+      --doc_opt=html,apis.html \
+      $pb_files $emptypb_file \
+      $async_tag
+    $cmd \
+      --doc_out=$out \
+      --doc_opt=markdown,apis.md \
+      $pb_files $emptypb_file \
+      $async_tag
+    $cmd \
+      --doc_out=$out \
+      --doc_opt=json,apis.json \
+      $pb_files $emptypb_file \
+      $async_tag
+  fi
 done