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utils.go
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/
utils.go
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package eventbus
import (
"encoding/json"
"fmt"
"time"
cloudevents "github.com/cloudevents/sdk-go/v2"
"github.com/cloudevents/sdk-go/v2/event"
"github.com/jakehl/goid"
)
func BuildCloudEvent(eventType string, eventSource string, payload interface{}) event.Event {
event := cloudevents.NewEvent()
event.SetSpecVersion("1.0")
event.SetSource(eventSource)
event.SetType(eventType)
event.SetTime(time.Now())
event.SetID(goid.NewV4UUID().String())
event.SetData(cloudevents.ApplicationJSON, payload)
return event
}
func ParseCloudEvent(msg []byte) (*event.Event, error) {
var event cloudevents.Event
err := json.Unmarshal(msg, &event)
if err != nil {
return nil, err
}
return &event, nil
}
func GetEventBody[E any](cloudEvent *event.Event) (*E, error) {
var elem *E
if cloudEvent == nil {
return nil, fmt.Errorf("cloud event is null")
}
if cloudEvent.Data() == nil {
return nil, fmt.Errorf("cloud event data is null")
}
eventDataBytes := cloudEvent.Data()
err := json.Unmarshal(eventDataBytes, &elem)
return elem, err
}