v2

event.go

@@ -8,12 +8,12 @@ import (
 
 // Event struct
 type Event struct {
-	EventID     string   `json:"event_id"`
+	EventID     string      `json:"event_id"`
-	EventTopic  string   `json:"event_topic"`
+	EventTopic  string      `json:"event_topic"`
-	EventSender string   `json:"event_sender"`
+	EventSender string      `json:"event_sender"`
-	EventMeta   MetaData `json:"event_meta"`
+	EventMeta   MetaData    `json:"event_meta"`
-	EventData   []byte   `json:"event_data"`
+	EventData   interface{} `json:"event_data"`
-	EventTime   string   `json:"event_time"`
+	EventTime   string      `json:"event_time"`
 }
 
 // NewEvent creates a new event

go.mod

@@ -13,8 +13,11 @@ require (
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
+	github.com/hashicorp/go-msgpack v0.5.5 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/vmihailenco/msgpack/v5 v5.4.1 // indirect
+	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
 	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 )

go.sum

@@ -7,6 +7,8 @@ github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/go-msgpack v0.5.5 h1:i9R9JSrqIz0QVLz3sz+i3YJdT7TTSLcfLLzJi9aZTuI=
+github.com/hashicorp/go-msgpack v0.5.5/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
 github.com/nsqio/go-nsq v1.1.0 h1:PQg+xxiUjA7V+TLdXw7nVrJ5Jbl3sN86EhGCQj4+FYE=
 github.com/nsqio/go-nsq v1.1.0/go.mod h1:vKq36oyeVXgsS5Q8YEO7WghqidAVXQlcFxzQbQTuDEY=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@@ -18,6 +20,10 @@ github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVs
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/vmihailenco/msgpack/v5 v5.4.1 h1:cQriyiUvjTwOHg8QZaPihLWeRAAVoCpE00IUPn0Bjt8=
+github.com/vmihailenco/msgpack/v5 v5.4.1/go.mod h1:GaZTsDaehaPpQVyxrf5mtQlH+pc21PIudVV/E3rRQok=
+github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
+github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=

marshal.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/nsqio/go-nsq"
 	"github.com/pkg/errors"
+	"github.com/vmihailenco/msgpack/v5"
 )
 
 type Marshaler interface {
@@ -86,3 +87,38 @@ func (g GobMarshaler) Unmarshal(nsqMsg *nsq.Message) (*Event, error) {
 	// return decoded message
 	return &decodedEvent, nil
 }
+
+type MsgPackMarshaler struct{}
+
+func (MsgPackMarshaler) Marshal(topic string, msg *Event) ([]byte, error) {
+	// buffer holder
+	buf := bytes.Buffer{}
+	// create encoder
+	encoder := msgpack.NewEncoder(&buf)
+	// encode message
+	if err := encoder.Encode(msg); err != nil {
+		return nil, errors.Wrap(err, "cannot encode message")
+	}
+	// return encoded message
+	return buf.Bytes(), nil
+}
+
+func (MsgPackMarshaler) Unmarshal(nsqMsg *nsq.Message) (*Event, error) {
+	// buffer holder
+	buf := new(bytes.Buffer)
+	// write message data to buffer
+	_, err := buf.Write(nsqMsg.Body)
+	if err != nil {
+		return nil, errors.Wrap(err, "cannot write nsq message data to buffer")
+	}
+	// create decoder
+	decoder := msgpack.NewDecoder(buf)
+	// decode event from buffer message
+	var decodedEvent Event
+	// decode message
+	if err := decoder.Decode(&decodedEvent); err != nil {
+		return nil, errors.Wrap(err, "cannot decode message")
+	}
+	// return decoded message
+	return &decodedEvent, nil
+}

publisher.go

@@ -32,9 +32,8 @@ func (p *PublisherImpl) PublishEvent(event *Event) error {
 	defer p.lock.Unlock()
 	// log fields
 	logFields := logger.LogFields{
-		"event_id":          event.EventID,
+		"event_id":     event.EventID,
-		"event_sender":      event.EventSender,
+		"event_sender": event.EventSender,
-		"event_data_length": len(event.EventData),
 	}
 	// log event
 	p.log.Info("new event published", logFields)
@@ -65,6 +64,14 @@ func (p *PublisherImpl) Close() error {
 	return nil
 }
 
+func DefaultPublisherConfig() *PublisherImplConfig {
+	return &PublisherImplConfig{
+		NSQAddress: "",
+		NSQPort:    0,
+		Marshaler:  MsgPackMarshaler{},
+	}
+}
+
 // NewPublisher creates a new publisher
 func NewPublisher(config *PublisherImplConfig, log logger.LoggerAdapter) (Publisher, error) {
 	// create nsq producer address