rabbitmq-publisher.go

// not yet finalized: publish a message to rabbitMQ once the encryption is
// done. The message will be received by a python daemon that will send
// the file to the sftp site
package main

import (
	"fmt"
	"log"

	"github.com/streadway/amqp"
)

func failOnError(err error, msg string) {
	if err != nil {
		log.Fatalf("%s: %s", msg, err)
		panic(fmt.Sprintf("%s: %s", msg, err))
	}
}

// PublishMessage sends message to channel
func PublishMessage(message string) {
	conn, err := amqp.Dial("amqp://127.0.0.1:5672/")
	failOnError(err, "Failed to connect to RabbitMQ")
	defer conn.Close()

	ch, err := conn.Channel()
	failOnError(err, "Failed to open a channel")
	defer ch.Close()

	q, err := ch.QueueDeclare(
		"routingkey", // name
		false,        // durable
		false,        // delete when usused
		false,        // exclusive
		false,        // no-wait
		nil,          // arguments
	)
	failOnError(err, "Failed to declare a queue")

	err = ch.Publish(
		"test_exchange", // exchange
		q.Name,          // routing key
		false,           // mandatory
		false,           // immediate
		amqp.Publishing{
			ContentType: "text/plain",
			Body:        []byte(message),
		})
	failOnError(err, "Failed to publish a message")
}