Initial mock FIX server

go.sum

@@ -353,6 +353,7 @@ golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
 golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

pkg/fix/fix.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/quickfixgo/quickfix"
+	log "github.com/sirupsen/logrus"
+)
+
+// FixServer implements the main quickfix interface
+type FixServer struct{}
+
+func (s *FixServer) OnCreate(sessionID quickfix.SessionID) {
+	log.Println("Session created:", sessionID)
+}
+
+func (s *FixServer) OnLogon(sessionID quickfix.SessionID) {
+	fmt.Println("Session logged on:", sessionID)
+}
+
+func (s *FixServer) OnLogout(sessionID quickfix.SessionID) {
+	fmt.Println("Session logged out:", sessionID)
+}
+
+func (s *FixServer) ToAdmin(message quickfix.Message, sessionID quickfix.SessionID) {
+	fmt.Println("Sending admin message to", sessionID, ":", message)
+}
+
+func (s *FixServer) ToApp(message quickfix.Message, sessionID quickfix.SessionID) error {
+	fmt.Println("Sending app message to", sessionID, ":", message)
+	return nil
+}
+
+func (s *FixServer) FromAdmin(message quickfix.Message, sessionID quickfix.SessionID) quickfix.MessageRejectError {
+	fmt.Println("Receiving admin message from", sessionID, ":", message)
+	return quickfix.InvalidMessageType()
+}
+
+func (s *FixServer) FromApp(message quickfix.Message, sessionID quickfix.SessionID) quickfix.MessageRejectError {
+	fmt.Println("Receiving app message from", sessionID, ":", message)
+	return quickfix.InvalidMessageType()
+}
+
+func New() *FixServer {
+	server := &FixServer{}
+	return server
+}