Initial cloud-services repo - gateway service + pkg modules

pkg/common/payload.go

@@ -0,0 +1,23 @@
+package common
+
+import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
+)
+
+// Payload is the generic structure for payloads sent within Kafka messages
+type Payload struct {
+	Handler string          `json:"handler"`
+	Data    json.RawMessage `json:"data"`
+}
+
+func (p *Payload) Marshal() ([]byte, error) {
+	data, err := json.Marshal(*p)
+	return data, errors.WithStack(err)
+}
+
+func (p *Payload) Unmarshal(data []byte) error {
+	err := json.Unmarshal(data, p)
+	return errors.WithStack(err)
+}