diff --git a/.env b/.env
index 75f9707da..048662d97 100644
--- a/.env
+++ b/.env
@@ -1,4 +1,5 @@
 USER=root
 PASSWORD=openIM123
 MINIO_ENDPOINT=http://127.0.0.1:10005
+API_URL=http://127.0.0.1:10002/object/
 DATA_DIR=./
diff --git a/install_im_server.sh b/install_im_server.sh
index b08597e80..c526d43db 100644
--- a/install_im_server.sh
+++ b/install_im_server.sh
@@ -9,6 +9,10 @@ source .env
 echo $MINIO_ENDPOINT
 
 # Replace local IP address with the public IP address in .env file
+if [ $API_URL == "http://127.0.0.1:10002/object/" ]; then
+    sed -i "s/127.0.0.1/${internet_ip}/" .env
+fi
+
 if [ $MINIO_ENDPOINT == "http://127.0.0.1:10005" ]; then
     sed -i "s/127.0.0.1/${internet_ip}/" .env
 fi
diff --git a/pkg/common/constant/constant.go b/pkg/common/constant/constant.go
index 55ef31acf..ef33b9867 100644
--- a/pkg/common/constant/constant.go
+++ b/pkg/common/constant/constant.go
@@ -18,19 +18,20 @@ const (
 
 	///ContentType
 	//UserRelated
-	Text     = 101
-	Picture  = 102
-	Voice    = 103
-	Video    = 104
-	File     = 105
-	AtText   = 106
-	Merger   = 107
-	Card     = 108
-	Location = 109
-	Custom   = 110
-	Revoke   = 111
-	Typing   = 113
-	Quote    = 114
+	ContentTypeBegin = 100
+	Text             = 101
+	Picture          = 102
+	Voice            = 103
+	Video            = 104
+	File             = 105
+	AtText           = 106
+	Merger           = 107
+	Card             = 108
+	Location         = 109
+	Custom           = 110
+	Revoke           = 111
+	Typing           = 113
+	Quote            = 114
 
 	AdvancedText = 117
 
diff --git a/pkg/proto/sdkws/sdkws.go b/pkg/proto/sdkws/sdkws.go
index 1c0888745..d0b0ae8aa 100644
--- a/pkg/proto/sdkws/sdkws.go
+++ b/pkg/proto/sdkws/sdkws.go
@@ -26,10 +26,10 @@ func (x *MsgData) Check() error {
 	if x.Content == nil {
 		return errs.ErrArgs.Wrap("content is empty")
 	}
-	if x.ContentType < 101 || x.ContentType > 203 {
-		return errs.ErrArgs.Wrap("content is empty")
+	if x.ContentType <= constant.ContentTypeBegin || x.ContentType >= constant.NotificationEnd {
+		return errs.ErrArgs.Wrap("content type is invalid")
 	}
-	if x.SessionType < 1 || x.SessionType > 4 {
+	if x.SessionType < constant.SingleChatType || x.SessionType > constant.NotificationChatType {
 		return errs.ErrArgs.Wrap("sessionType is invalid")
 	}
 	if x.SessionType == constant.SingleChatType || x.SessionType == constant.NotificationChatType {
diff --git a/scripts/init_pwd.sh b/scripts/init_pwd.sh
index 25ee559a3..a3ce6048a 100755
--- a/scripts/init_pwd.sh
+++ b/scripts/init_pwd.sh
@@ -51,6 +51,8 @@ sed -i '/redis:/,/password:/s/password: .*/password: '${PASSWORD}'/' $config_fil
 sed -i "/minio:/,/isDistributedMod:/ s/accessKeyID:.*/accessKeyID: $USER/" $config_file
 sed -i "/minio:/,/isDistributedMod:/ s/secretAccessKey:.*/secretAccessKey: $PASSWORD/" $config_file
 sed -i '/minio:/,/endpoint:/s|endpoint: .*|endpoint: '${MINIO_ENDPOINT}'|' $config_file
+sed -i '/object:/,/apiURL:/s|apiURL: .*|apiURL: '${API_URL}'|' $config_file
+
 
 # Replace secret for token
 sed -i "s/secret: .*/secret: $PASSWORD/" $config_file