diff --git a/.gitignore b/.gitignore
index db1f454..fd31e4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /config_dev.json
 /config_prod.json
-/.idea/
\ No newline at end of file
+/.idea/
+/.DS_Store
\ No newline at end of file
diff --git a/go.mod b/go.mod
index bce7672..6b4a7f5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,9 +1,8 @@
-module kucoin-api-test
+module kucoin-api-demo
 
 go 1.14
 
 require (
-	github.com/Kucoin/kucoin-go-sdk v1.2.6
 	github.com/gorilla/websocket v1.4.0
 	github.com/pkg/errors v0.8.1
 	github.com/sirupsen/logrus v1.4.1
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..a1db8b4
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,17 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
+github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
+github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33 h1:I6FyU15t786LL7oL/hn43zqTuEGr4PN7F4XJ1p4E3Y8=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
diff --git a/main.go b/main.go
index 310668d..3879ee8 100644
--- a/main.go
+++ b/main.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	"kucoin-api-test/sdk"
+	"kucoin-api-demo/sdk"
 	"log"
 	"os"
 	"reflect"
@@ -14,7 +14,7 @@ import (
 
 var (
 	kucoin *sdk.ApiService
-	PATH   = "./config.json.example"
+	PATH   = "./config.json"
 )
 
 func main() {
@@ -23,23 +23,24 @@ func main() {
 	var apiSkipVerifyTls bool
 
 	// read config from json file
-	file, err := ioutil.ReadFile(PATH)
-	if err != nil {
-		log.Fatal("error when read configuration from json file:", err)
-		return
-	}
 	var config ApiConfig
-	// unmarshal config data
-	err = json.Unmarshal(file, &config)
-	if err != nil {
-		log.Fatal("error when unmarshal config from json file:", err)
-		return
+	file, er := ioutil.ReadFile(PATH)
+	if er != nil {
+		log.Println("Failed to read configuration from json file:", er)
+		log.Println("Now please input api information manually.")
+	}else{
+		// unmarshal config data
+		err := json.Unmarshal(file, &config)
+		if err != nil {
+			log.Fatal("error when unmarshal config from json file:", err)
+			return
+		}
 	}
 	// if we have configuration from json file
 	if len(config.ApiBaseURI) > 0 {
 		apiURI = config.ApiBaseURI
 	} else {
-		log.Println("please input api base URI,such as:https://api.kumex.com")
+		log.Println("please input api base URI,such as:https://api.kucoin.com")
 		fmt.Scanf("%s", &apiURI)
 	}
 
@@ -91,6 +92,7 @@ func main() {
 	call(apiMap, apiName, params)
 }
 
+// initial api configuration information from json file.
 type ApiConfig struct {
 	ApiBaseURI       string `json:ApiBaseURI`
 	ApiKey           string `json:ApiKey`