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Add amqp091-go example (#96)
* Add amqp091-go example * Add oauth producer and consumer * Refactor project * Update README * Update README * Update readme file * Update readme * Update readme * Update readme file, add vhost * Add plain example and fix example
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‎aop/amqp091-go/README.md

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# Overview
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The `amqp091-go` is a AMQP client written by RabbitMQ.
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# Prerequisites
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- Go 1.18 or higher version
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# Running steps
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**Please first create the namespace, which will be configured to vhost**
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1. Clone example project
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```
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git clone https://github.com/streamnative/examples.git
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```
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2. Download dependencies
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```
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cd examples/aop/amqp091-go
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go mod tidy
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```
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3. Configure endpoint, audience, keyfile and vhost on producer/oauth-producer.go and consumer/oauth-consumer.go
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4. Build and run example
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```
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go build producer/oauth-producer.go
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go build consumer/oauth-consumer.go
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./oauth-consumer
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./oauth-producer
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```

‎aop/amqp091-go/consumer/oauth-consumer.go

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package main
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import (
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"fmt"
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"log"
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"github.com/apache/pulsar-client-go/oauth2"
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amqp "github.com/rabbitmq/amqp091-go"
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amqpauth "github.com/streamnative/aop-amqp091-auth-go"
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)
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func main() {
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endpoint := "amqp://your-host-cluster:5671"
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oauth2Authentication, err := amqpauth.NewOAuth2Authentication(
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amqpauth.ClientCredentialsFlowOptions{
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ClientCredentialsFlowOptions: oauth2.ClientCredentialsFlowOptions{
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// your key file from here
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// https://docs.streamnative.io/cloud/stable/managed-access/service-account#work-with-a-service-account-through-streamnative-cloud-manager
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KeyFile: "/your-key-file-path.json",
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},
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// your audience from streamnative cloud console ui
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Audience: "your-audience",
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})
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saslConfigs := []amqp.Authentication{oauth2Authentication}
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conn, err := amqp.DialConfig(endpoint, amqp.Config{
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SASL: saslConfigs,
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Vhost: "vhost2",
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})
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if err != nil {
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log.Fatalf("failed to open connection: %v", err)
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}
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channel, err := conn.Channel()
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if err != nil {
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log.Fatalf("failed to open channel: %v", err)
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}
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exchange := "exchange-1"
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if err = channel.ExchangeDeclare(
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exchange,
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"fanout",
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true,
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false,
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false,
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false,
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nil,
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); err != nil {
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log.Fatalf("ExchangeDeclare: %v", err)
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}
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queueName := "topic-1"
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queue, err := channel.QueueDeclare(
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queueName,
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true,
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false,
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false,
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false,
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nil,
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)
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if err != nil {
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log.Fatalf("QueueDeclare: %v", err)
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}
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if err = channel.QueueBind(
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queue.Name,
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"",
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exchange,
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false,
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nil,
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); err != nil {
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log.Fatalf("QueueBind: %v", err)
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}
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deliveries, err := channel.Consume(
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queue.Name,
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"",
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false,
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false,
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false,
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false,
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nil,
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)
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for delivery := range deliveries {
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fmt.Printf("received a message: %s", delivery.Body)
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_ = delivery.Ack(false)
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}
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}

‎aop/amqp091-go/consumer/plain-consumer.go

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package main
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import (
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"fmt"
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"log"
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amqp "github.com/rabbitmq/amqp091-go"
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)
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func main() {
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endpoint := "amqp://user:password@your-host-cluster:5671/vhost2"
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conn, err := amqp.Dial(endpoint)
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if err != nil {
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log.Fatalf("failed to open connection: %v", err)
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}
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channel, err := conn.Channel()
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if err != nil {
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log.Fatalf("failed to open channel: %v", err)
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}
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exchange := "exchange-1"
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if err = channel.ExchangeDeclare(
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exchange,
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"fanout",
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true,
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false,
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false,
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false,
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nil,
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); err != nil {
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log.Fatalf("ExchangeDeclare: %v", err)
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}
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queueName := "topic-1"
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queue, err := channel.QueueDeclare(
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queueName,
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true,
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false,
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false,
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false,
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nil,
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)
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if err != nil {
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log.Fatalf("QueueDeclare: %v", err)
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}
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if err = channel.QueueBind(
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queue.Name,
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"",
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exchange,
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false,
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nil,
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); err != nil {
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log.Fatalf("QueueBind: %v", err)
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}
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deliveries, err := channel.Consume(
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queue.Name,
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"",
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false,
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false,
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false,
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false,
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nil,
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)
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for delivery := range deliveries {
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fmt.Printf("received a message: %s", delivery.Body)
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_ = delivery.Ack(false)
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}
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}

‎aop/amqp091-go/general/connect-by-oauth2.go

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package main
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import (
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"log"
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"github.com/apache/pulsar-client-go/oauth2"
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amqp "github.com/rabbitmq/amqp091-go"
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amqpauth "github.com/streamnative/aop-amqp091-auth-go"
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)
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func main() {
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endpoint := "amqp://localhost:15002"
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oauth2Authentication, err := amqpauth.NewOAuth2Authentication(amqpauth.ClientCredentialsFlowOptions{
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ClientCredentialsFlowOptions: oauth2.ClientCredentialsFlowOptions{
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KeyFile: "./oauth2/client-credentials.json",
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},
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Audience: "your-audience",
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})
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if err != nil {
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log.Fatalf("NewOAuth2Authentication: %v", err)
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}
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saslConfigs := []amqp.Authentication{oauth2Authentication}
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connection, err := amqp.DialConfig(endpoint,
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amqp.Config{
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SASL: saslConfigs,
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Vhost: "vhost1",
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})
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if err != nil {
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log.Fatalf("failed to open connection: %v", err)
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}
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defer connection.Close()
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}

‎aop/amqp091-go/general/connect-by-plain.go

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package main
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import (
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amqp "github.com/rabbitmq/amqp091-go"
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)
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func main() {
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endpoint := "amqp://user:password@your-host-cluster:5671/vhost2"
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connection, err := amqp.Dial(endpoint)
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if err != nil {
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panic(err)
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}
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defer connection.Close()
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}

‎aop/amqp091-go/general/connect-by-token.go

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package main
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import (
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"log"
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amqp "github.com/rabbitmq/amqp091-go"
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amqpauth "github.com/streamnative/aop-amqp091-auth-go"
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)
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func main() {
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endpoint := "amqp://localhost:15002"
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token := "your-token"
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tokenAuthentication, err := amqpauth.NewTokenAuthentication(token)
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if err != nil {
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log.Fatalf("NewTokenAuthentication: %v", err)
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}
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saslConfigs := []amqp.Authentication{tokenAuthentication}
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connection, err := amqp.DialConfig(endpoint,
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amqp.Config{
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SASL: saslConfigs,
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Vhost: "vhost1",
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})
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if err != nil {
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panic(err)
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}
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defer connection.Close()
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}

‎aop/amqp091-go/general/simple-consumer.go

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package main
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import (
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"fmt"
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"log"
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amqp "github.com/rabbitmq/amqp091-go"
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)
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func main() {
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endpoint := "amqp://localhost:15002"
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conn, err := amqp.DialConfig(endpoint, amqp.Config{
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SASL: nil,
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Vhost: "vhost1",
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})
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if err != nil {
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log.Fatalf("failed to open connection: %v", err)
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}
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channel, err := conn.Channel()
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if err != nil {
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log.Fatalf("failed to open channel: %v", err)
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}
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exchange := "exchange-1"
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if err = channel.ExchangeDeclare(
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exchange,
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"direct",
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true,
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false,
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false,
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false,
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nil,
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); err != nil {
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log.Fatalf("ExchangeDeclare: %v", err)
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}
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queueName := "topic-1"
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queue, err := channel.QueueDeclare(
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queueName,
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true,
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false,
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false,
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false,
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nil,
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)
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if err != nil {
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log.Fatalf("QueueDeclare: %v", err)
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}
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if err = channel.QueueBind(
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queue.Name,
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"",
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exchange,
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false,
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nil,
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); err != nil {
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log.Fatalf("QueueBind: %v", err)
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}
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deliveries, err := channel.Consume(
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queue.Name,
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"",
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false,
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false,
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false,
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false,
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nil,
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)
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for delivery := range deliveries {
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fmt.Printf("received a message: %s", delivery.Body)
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_ = delivery.Ack(false)
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}
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}

‎aop/amqp091-go/go.mod

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module github.com/streamnative/examples/aop/amqp091-go
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go 1.18
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require (
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github.com/apache/pulsar-client-go/oauth2 v0.0.0-20220707015503-ea6eccf7ddad
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github.com/rabbitmq/amqp091-go v1.3.4
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github.com/streamnative/aop-amqp091-auth-go v0.0.0-20220706135027-3352980e769b
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)
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require (
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github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
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github.com/golang/protobuf v1.5.2 // indirect
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github.com/pkg/errors v0.9.1 // indirect
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golang.org/x/net v0.0.0-20220706163947-c90051bbdb60 // indirect
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golang.org/x/oauth2 v0.0.0-20220630143837-2104d58473e0 // indirect
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google.golang.org/appengine v1.6.7 // indirect
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google.golang.org/protobuf v1.28.0 // indirect
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)

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