diff --git a/api/main.proto b/api/main.proto
index 32c7d94..e8981b4 100644
--- a/api/main.proto
+++ b/api/main.proto
@@ -12,8 +12,21 @@ service ${REPO_NAME_PASCAL} {
       get: "/api/ping"
     };
   }
+  rpc Echo(EchoReq) returns (EchoRsp) {
+    option (google.api.http) = {
+      post: "/api/echo"
+    };
+  }
 }
 
 message PingReq {}
 
 message PingRsp {}
+
+message EchoReq {
+  string text = 1;
+}
+
+message EchoRsp {
+  string text = 1;
+}
diff --git a/internal/app/server.go b/internal/app/server.go
index dcbd727..253b9b6 100644
--- a/internal/app/server.go
+++ b/internal/app/server.go
@@ -1,18 +1,22 @@
 package app
 
 import (
-	proto "${REPO_NAME_SNAKE}/proto"
 	"context"
+	proto "${REPO_NAME_SNAKE}/proto"
 )
 
-type Server struct {
-	proto.Unimplemented${REPO_NAME_PASCAL}Server
+type server struct {
+	proto.Unsafe{REPO_NAME_PASCAL}Server
 }
 
-func NewServer() *Server {
-	return &Server{}
+func NewServer() proto.TestTemplateRepoServer {
+	return &server{}
 }
 
-func (s *Server) Ping(_ context.Context, _ *proto.PingReq) (*proto.PingRsp, error) {
+func (s *server) Ping(_ context.Context, _ *proto.PingReq) (*proto.PingRsp, error) {
 	return &proto.PingRsp{}, nil
 }
+
+func (s *server) Echo(_ context.Context, req *proto.EchoReq) (*proto.EchoRsp, error) {
+	return &proto.EchoRsp{Text: req.Text}, nil
+}
\ No newline at end of file