https://github.com/tomwright/gracesarama

Sarama runners for use with grace.
https://github.com/tomwright/gracesarama

Last synced: 19 days ago
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Sarama runners for use with grace.

• Host: GitHub
• URL: https://github.com/tomwright/gracesarama
• Owner: TomWright
• License: mit
• Created: 2021-01-28T12:05:50.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2021-03-23T14:06:23.000Z (over 3 years ago)
• Last Synced: 2024-10-11T01:03:57.318Z (about 1 month ago)
• Language: Go
• Size: 19.5 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# Grace Sarama Runners

Sarama runners for use with [grace](https://github.com/TomWright/grace).

## Consumer Usage

```go

package main

import (

	"context"

	"fmt"

	"github.com/tomwright/grace"

	"github.com/tomwright/gracesarama"

	"github.com/Shopify/sarama"

	"log"

)

func main() {

	g := grace.Init(context.Background())

	config := sarama.NewConfig()

	// Set kafka version.

	config.Version = sarama.V2_1_0_0

	runner := gracesarama.NewConsumerGroupRunner(

		[]string{"localhost:9092"},

		"my-group",

		config,

		[]string{"topic-a", "topic-b"},

		&exampleConsumerGroupHandler{},

	)

	runner.ErrorHandlerFn = func(err error) {

		log.Printf("ERROR: %s\n", err.Error())

	}

	g.Run(runner)

	g.Wait()

}

type exampleConsumerGroupHandler struct{}

func (exampleConsumerGroupHandler) Setup(_ sarama.ConsumerGroupSession) error   { return nil }

func (exampleConsumerGroupHandler) Cleanup(_ sarama.ConsumerGroupSession) error { return nil }

func (h exampleConsumerGroupHandler) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {

	for msg := range claim.Messages() {

		fmt.Printf("Message topic:%q partition:%d offset:%d\n", msg.Topic, msg.Partition, msg.Offset)

		sess.MarkMessage(msg, "")

	}

	return nil

}

```

## Producer Usage

```go

package main

import (

	"context"

	"github.com/tomwright/grace"

	"github.com/tomwright/gracesarama"

	"github.com/Shopify/sarama"

	"log"

)

func main() {

	g := grace.Init(context.Background())

	config := sarama.NewConfig()

	// Set kafka version.

	config.Version = sarama.V2_1_0_0

	config.Producer.Return.Errors = true

	config.Producer.Return.Successes = true

	runner := gracesarama.NewProducerRunner([]string{"localhost:9092"}, config)

	runner.SuccessHandlerFn = func(message *sarama.ProducerMessage) {

		log.Printf("message published to topic: %s\n", message.Topic)

	}

	runner.ErrorHandlerFn = func(err *sarama.ProducerError) {

		log.Printf("failed to publish to topic: %s: %s\n", err.Msg.Topic, err.Err.Error())

	}

	produceCh := runner.Input()

	g.Run(runner)

	go func() {

		produceCh <- &sarama.ProducerMessage{

			// ...

		}

	}()

	g.Wait()

}

```