feat: pub sub (#1341)

* fix: pub sub

* fix: adaot config to commands (and queries)

* remove dependency on vv2 in v1

* fix: pub sub in new eventstore

* fix tests

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/eventstore/event_base.go

@@ -22,6 +22,7 @@ type BaseEvent struct {
 	User string `json:"-"`
 	//Service is the service which created the event
 	Service string `json:"-"`
+	Data    []byte `json:"-"`
 }
 
 // EditorService implements EventPusher
@@ -54,6 +55,11 @@ func (e *BaseEvent) Aggregate() Aggregate {
 	return e.aggregate
 }
 
+//Data returns the payload of the event. It represent the changed fields by the event
+func (e *BaseEvent) DataAsBytes() []byte {
+	return e.Data
+}
+
 //BaseEventFromRepo maps a stored event to a BaseEvent
 func BaseEventFromRepo(event *repository.Event) *BaseEvent {
 	return &BaseEvent{
@@ -68,6 +74,7 @@ func BaseEventFromRepo(event *repository.Event) *BaseEvent {
 		sequence:     event.Sequence,
 		Service:      event.EditorService,
 		User:         event.EditorUser,
+		Data:         event.Data,
 	}
 }