diff --git a/conn.go b/conn.go
index 03b27d5..7c76cd7 100644
--- a/conn.go
+++ b/conn.go
@@ -4,7 +4,7 @@ import (
 	"git.tetele.net/tgo/conf"
 )
 
-func rpc_server_conn(url ...string) (*SupplierServiceClient, error) {
+func rpc_server_conn(url ...string) (*SmsServiceClient, error) {
 
 	var rpc_url string
 	if len(url) > 0 && url[0] != "" {
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..f9356ed
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,11 @@
+module git.tetele.net/tgo/smsrpc
+
+go 1.16
+
+require (
+	git.tetele.net/tgo/conf v0.44.0
+	git.tetele.net/tgo/crypter v0.2.2
+	github.com/chai2010/protorpc v1.1.3
+	github.com/golang/protobuf v1.5.2
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..68ac0b8
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,27 @@
+git.tetele.net/tgo/conf v0.44.0 h1:hAU05LXnhHsq+SctBBQpORi7Q9WrXdu0/1w3HoGmFDY=
+git.tetele.net/tgo/conf v0.44.0/go.mod h1:AWVIBEDE5dtotthUgR0SWaR2Qa6/f+O5WQ3s7Tj8q7A=
+git.tetele.net/tgo/crypter v0.2.2 h1:YMQJh2Gj5Po4ZfelJUmXBKi01UbmtiSy3bmqRfnYQMo=
+git.tetele.net/tgo/crypter v0.2.2/go.mod h1:vfvRLZA8+lHNgNXneOcgvVhDyuv25ZRb+C6xHOmXNx0=
+github.com/chai2010/protorpc v1.1.3 h1:VJK5hIoZn0XCGol0GmbxZkUG6FbTI5LP2Lam6RVd15w=
+github.com/chai2010/protorpc v1.1.3/go.mod h1:/wO0kiyVdu7ug8dCMrA2yDr2vLfyhsLEuzLa9J2HJ+I=
+github.com/golang/protobuf v1.0.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
+github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=