/
consumer.go
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/
consumer.go
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package rabbitmq
import (
"context"
"fmt"
"log"
"github.com/NicklasWallgren/go-template/adapters/driven/logger"
"github.com/NicklasWallgren/go-template/config"
"github.com/wagslane/go-rabbitmq"
)
const DefaultExchange = "events"
type Consumer interface {
Consume(ctx context.Context, runner ConsumerRunner)
}
type RabbitMQConsumer struct {
config *config.AppConfig
logger logger.Logger
}
func NewRabbitMQConsumer(config *config.AppConfig, logger logger.Logger) Consumer {
return &RabbitMQConsumer{config: config, logger: logger}
}
func (c *RabbitMQConsumer) Consume(ctx context.Context, runner ConsumerRunner) {
url := fmt.Sprintf("amqp://%s:%s@%s", c.config.RabbitMQ.Name, c.config.RabbitMQ.Password, c.config.RabbitMQ.Host)
// TODO, pass compatible logger
consumer, err := rabbitmq.NewConsumer(url, rabbitmq.Config{}, rabbitmq.WithConsumerOptionsLogging)
if err != nil {
log.Fatal(err)
}
defer consumer.Close() // nolint:errcheck
runnerOptions := runner.Options()
err = consumer.StartConsuming(
func(d rabbitmq.Delivery) rabbitmq.Action {
log.Printf("consumed: %v", string(d.Body))
runner.Do(ctx) // TODO Unmarshall and pass d.Body
// rabbitmq.Ack, rabbitmq.NackDiscard, rabbitmq.NackRequeue
return rabbitmq.Ack
},
runnerOptions.queue,
runnerOptions.routingKeys,
rabbitmq.WithConsumeOptionsQueueDurable,
rabbitmq.WithConsumeOptionsBindingExchangeName(runnerOptions.exchangeName),
rabbitmq.WithConsumeOptionsBindingExchangeKind(runnerOptions.exchangeKind),
rabbitmq.WithConsumeOptionsBindingExchangeDurable,
rabbitmq.WithConsumeOptionsConsumerName(runnerOptions.name),
)
if err != nil {
log.Println(err)
}
<-ctx.Done()
fmt.Println("The consumer is stopping") // nolint:forbidigo
}