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cloudevents.go
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/
cloudevents.go
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/*
Copyright 2021 The Dapr Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package pubsub
import (
"github.com/google/uuid"
contribContenttype "github.com/dapr/components-contrib/contenttype"
contribPubsub "github.com/dapr/components-contrib/pubsub"
)
// CloudEvent is a request object to create a Dapr compliant cloudevent.
type CloudEvent struct {
ID string
Data []byte
Topic string
Pubsub string
DataContentType string
TraceID string
TraceState string
}
// NewCloudEvent encapsulates the creation of a Dapr cloudevent from an existing cloudevent or a raw payload.
func NewCloudEvent(req *CloudEvent) (map[string]interface{}, error) {
if contribContenttype.IsCloudEventContentType(req.DataContentType) {
return contribPubsub.FromCloudEvent(req.Data, req.Topic, req.Pubsub, req.TraceID, req.TraceState)
}
return contribPubsub.NewCloudEventsEnvelope(uuid.New().String(), req.ID, contribPubsub.DefaultCloudEventType,
"", req.Topic, req.Pubsub, req.DataContentType, req.Data, req.TraceID, req.TraceState), nil
}