/
publisher.go
61 lines (50 loc) · 1.3 KB
/
publisher.go
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package bus_golang_publisher_aws_kinesis
import (
"context"
"fmt"
"github.com/al-kimmel-serj/bus-golang"
"github.com/aws/aws-sdk-go-v2/service/kinesis"
"github.com/aws/aws-sdk-go-v2/service/kinesis/types"
"google.golang.org/protobuf/proto"
)
type Publisher[Payload proto.Message] struct {
kinesisClient *kinesis.Client
kinesisStreamARN string
}
func New[Payload proto.Message](
kinesisClient *kinesis.Client,
kinesisStreamARN string,
) *Publisher[Payload] {
return &Publisher[Payload]{
kinesisClient: kinesisClient,
kinesisStreamARN: kinesisStreamARN,
}
}
func (p *Publisher[Payload]) Publish(ctx context.Context, events []bus.Event[Payload]) error {
if len(events) == 0 {
return nil
}
records := make([]types.PutRecordsRequestEntry, 0, len(events))
for _, event := range events {
eventKey := event.EventKey
msg, err := proto.Marshal(event.EventPayload)
if err != nil {
return fmt.Errorf("proto.Marshal error: %w", err)
}
records = append(records, types.PutRecordsRequestEntry{
Data: msg,
PartitionKey: (*string)(&eventKey),
})
}
_, err := p.kinesisClient.PutRecords(ctx, &kinesis.PutRecordsInput{
Records: records,
StreamARN: &p.kinesisStreamARN,
})
if err != nil {
return err
}
return nil
}
func (p *Publisher[Payload]) Stop() error {
return nil
}