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publishFunc.go
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/
publishFunc.go
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//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 main
import (
"context"
"errors"
"log"
"github.com/apache/pulsar-client-go/pulsar"
"github.com/pocockn/pulsar/pulsar-function-go/pf"
)
func PublishFunc(ctx context.Context, in []byte) error {
fctx, ok := pf.FromContext(ctx)
if !ok {
return errors.New("get Go Functions Context error")
}
publishTopic := "publish-topic"
output := append(in, 110)
producer := fctx.NewOutputMessage(publishTopic)
msgID, err := producer.Send(ctx, &pulsar.ProducerMessage{
Payload: output,
})
if err != nil {
log.Fatal(err)
}
log.Printf("The output message ID is: %+v", msgID)
return nil
}
func main() {
pf.Start(PublishFunc)
}