| /* |
| * 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" |
| "fmt" |
| "log" |
| "os" |
| "strconv" |
| "time" |
| |
| rmq_client "github.com/apache/rocketmq-clients/golang/v5" |
| "github.com/apache/rocketmq-clients/golang/v5/credentials" |
| ) |
| |
| const ( |
| Topic = "xxxxxx" |
| Endpoint = "xxxxxx" |
| AccessKey = "xxxxxx" |
| SecretKey = "xxxxxx" |
| ) |
| |
| func main() { |
| // log to console |
| os.Setenv("mq.consoleAppender.enabled", "true") |
| rmq_client.ResetLogger() |
| // In most case, you don't need to create many producers, singleton pattern is more recommended. |
| producer, err := rmq_client.NewProducer(&rmq_client.Config{ |
| Endpoint: Endpoint, |
| Credentials: &credentials.SessionCredentials{ |
| AccessKey: AccessKey, |
| AccessSecret: SecretKey, |
| }, |
| }, |
| rmq_client.WithTransactionChecker(&rmq_client.TransactionChecker{ |
| Check: func(msg *rmq_client.MessageView) rmq_client.TransactionResolution { |
| log.Printf("check transaction message: %v", msg) |
| return rmq_client.COMMIT |
| }, |
| }), |
| rmq_client.WithTopics(Topic), |
| ) |
| if err != nil { |
| log.Fatal(err) |
| } |
| // start producer |
| err = producer.Start() |
| if err != nil { |
| log.Fatal(err) |
| } |
| // graceful stop producer |
| defer producer.GracefulStop() |
| for i := 0; i < 10; i++ { |
| // new a message |
| msg := &rmq_client.Message{ |
| Topic: Topic, |
| Body: []byte("this is a message : " + strconv.Itoa(i)), |
| } |
| // set keys and tag |
| msg.SetKeys("a", "b") |
| msg.SetTag("ab") |
| // send message in sync |
| transaction := producer.BeginTransaction() |
| resp, err := producer.SendWithTransaction(context.TODO(), msg, transaction) |
| if err != nil { |
| log.Fatal(err) |
| } |
| for i := 0; i < len(resp); i++ { |
| fmt.Printf("%#v\n", resp[i]) |
| } |
| // commit transaction message |
| err = transaction.Commit() |
| if err != nil { |
| log.Fatal(err) |
| } |
| // wait a moment |
| time.Sleep(time.Second * 1) |
| } |
| } |