使用云函数实现消息流转

> 无服务器云函数可以让用户无需关心服务器的部署运营，只需开发最核心的业务逻辑，即可实现上线运营，具备分布容灾能力，可依据负载自动扩缩容，按照实际调用次数与时长计费

package main import ( "context" "fmt" "github.com/tencentyun/scf-go-lib/cloudfunction" ) type DefineEvent struct { // test event define Key1 string `json:"key1"` Key2 string `json:"key2"` } func hello(ctx context.Context, event DefineEvent) (string, error) { fmt.Println("key1:", event.Key1) fmt.Println("key2:", event.Key2) return fmt.Sprintf("Hello %s!", event.Key1), nil } func main() { // Make the handler available for Remote Procedure Call by Cloud Function cloudfunction.Start(hello) }

// 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" "log" "strconv" "github.com/TencentCloud/tdmq-go-client/pulsar" "github.com/tencentyun/scf-go-lib/cloudfunction" ) type DefineEvent struct { // test event define Key1 string `json:"key1"` Key2 string `json:"key2"` } func produce(ctx context.Context, event DefineEvent) { client, err := pulsar.NewClient(pulsar.ClientOptions{ URL: "pulsar://ip:6000", ListenerName: "custom:pulsar-*********/vpc-*********/subnet-*********", Authentication: pulsar.NewAuthenticationToken("eyJrZX*********4XRTqs"), }) if err != nil { log.Fatal(err) } defer client.Close() producer, err := client.CreateProducer(pulsar.ProducerOptions{ DisableBatching: true, Topic: "persistent://pulsar-*********/*********/*********", }) if err != nil { log.Fatal(err) } defer producer.Close() //ctx := context.Background() for j := 0; j < 10; j++ { if msgID, err := producer.Send(ctx, &pulsar.ProducerMessage{ Payload: []byte("Hello " + strconv.Itoa(j)), }); err != nil { log.Fatal(err) } else { log.Println("Published message: ", msgID) } } } func main() { cloudfunction.Start(produce) }