How to use consumeMessages method of kafka Package

Best Venom code snippet using kafka.consumeMessages

main.go

Source: main.go Github

copy

Full Screen

...46 log.Fatal("Error in SubscribeTopics.", err)47 }4849 /​/​ Start consuming messages50 go consumeMessages(c)5152 /​/​ Start capturing53 fmt.Println("Capturing. Point your browser to " + nodeport)5455 /​/​ Start http server56 http.Handle("/​", stream)57 log.Fatal(http.ListenAndServe(displayport, nil))58}5960func consumeMessages(c *kafka.Consumer) {61 defer func() {62 if r := recover(); r != nil {63 log.Println("main.consumeMessages():PANICKED AND RESTARTING")64 log.Println("Panic:", r)65 go consumeMessages(c)66 }67 }()6869 doc := &topicMsg{}7071 /​/​ Consume messages72 for e := range c.Events() {73 switch ev := e.(type) {74 case kafka.AssignedPartitions:75 log.Printf("%% %v\n", ev)76 c.Assign(ev.Partitions)77 continue78 case kafka.RevokedPartitions:79 log.Printf("%% %v\n", ev) ...

Full Screen

Full Screen

emitters_test.go

Source: emitters_test.go Github

copy

Full Screen

...29 loggerConfig.ProducerConfig = DefaultProducerConfig()30 loggerConfig.ProducerConfig.BrokerList = []string{localBroker}31 logger := NewKafkaLogEmitter(loggerConfig)32 logger.Info("Message sent at %d", time.Now().Unix())33 consumeMessages := 134 consumeStatus := make(chan int)35 delayTimeout := 10 * time.Second36 config := testConsumerConfig()37 config.Strategy = newCountingStrategy(t, consumeMessages, consumeTimeout, consumeStatus)38 consumer := NewConsumer(config)39 go consumer.StartStatic(map[string]int{topic: 1})40 if actual := <-consumeStatus; actual != consumeMessages {41 t.Errorf("Failed to consume %d messages within %s. Actual messages = %d", consumeMessages, consumeTimeout, actual)42 }43 closeWithin(t, delayTimeout, consumer)44}45func TestMetricsEmitter(t *testing.T) {46 partitions := 147 topic := fmt.Sprintf("testMetricsEmitter-%d", time.Now().Unix())48 CreateMultiplePartitionsTopic(localZk, topic, partitions)49 EnsureHasLeader(localZk, topic)50 consumeMessages := 151 consumeStatus := make(chan int)52 delayTimeout := 10 * time.Second53 metricsProducerConfig := DefaultProducerConfig()54 metricsProducerConfig.BrokerList = []string{localBroker}55 reporter := NewCodahaleKafkaReporter(topic, schemaRepositoryUrl, metricsProducerConfig)56 config := testConsumerConfig()57 config.Strategy = newCountingStrategy(t, consumeMessages, consumeTimeout, consumeStatus)58 consumer := NewConsumer(config)59 go consumer.Metrics().WriteJSON(10*time.Second, reporter)60 go consumer.StartStatic(map[string]int{topic: 1})61 if actual := <-consumeStatus; actual != consumeMessages {62 t.Errorf("Failed to consume %d messages within %s. Actual messages = %d", consumeMessages, consumeTimeout, actual)63 }64 closeWithin(t, delayTimeout, consumer)65}...

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 brokers := []string{"kafka:9092"}4 consumer, err := sarama.NewConsumerGroup(brokers, consumerGroup, nil)5 if err != nil {6 panic(err)7 }8 defer func() {9 if err := consumer.Close(); err != nil {10 log.Panicf("Error closing client: %v", err)11 }12 }()13 ctx := context.Background()14 consumer.Consume(ctx, []string{topic}, &consumerGroupHandler{})15}16type consumerGroupHandler struct{}17func (consumerGroupHandler) Setup(_ sarama.ConsumerGroupSession) error { return nil }18func (consumerGroupHandler) Cleanup(_ sarama.ConsumerGroupSession) error { return nil }19func (h consumerGroupHandler) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {20 for message := range claim.Messages() {21 fmt.Printf("Message claimed: value = %s, timestamp = %v, topic = %s22", string(message.Value), message.Timestamp, message.Topic)23 sess.MarkMessage(message, "")24 }25}26import (27func main() {28 brokers := []string{"kafka:9092"}29 producer, err := sarama.NewSyncProducer(brokers, nil)30 if err != nil {31 panic(err)32 }33 defer func() {34 if err := producer.Close(); err != nil {35 log.Panicf("Error closing client: %v", err)36 }37 }()38 for i := 0; i < 100; i++ {39 message := &sarama.ProducerMessage{

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 kafka := kafka.NewKafka()4 kafka.ConsumeMessages()5}6import (7func main() {8 kafka := kafka.NewKafka()9 kafka.ConsumeMessages()10}11import (12func NewKafka() *Kafka {13 return &Kafka{}14}15type Kafka struct {16}17func (kafka *Kafka) ConsumeMessages() {18 fmt.Println("ConsumeMessages")19 c, err := kafka.NewConsumer(&kafka.ConfigMap{20 })21 if err != nil {22 log.Panic(err)23 }24 c.SubscribeTopics([]string{topic}, nil)25 for {26 msg, err := c.ReadMessage(-1)27 if err == nil {28 fmt.Println("Message on %s: %s\n", msg.TopicPartition, string(msg.Value))29 } else {30 fmt.Println("Consumer error: %v (%v)\n", err, msg)31 }32 }33 c.Close()34}35main.main()36github.com/​confluentinc/​confluent-kafka-go/​kafka.(*Consumer).pollEvents(0xc0000a4000)

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 kafka := &Kafka{}4 kafka.initialize()5 kafka.consumeMessages()6}7import (8func main() {9 kafka := &Kafka{}10 kafka.initialize()11 kafka.consumeMessages()12}13import (14func main() {15 kafka := &Kafka{}16 kafka.initialize()17 kafka.consumeMessages()18}19import (20func main() {21 kafka := &Kafka{}22 kafka.initialize()23 kafka.consumeMessages()24}25import (26func main() {27 kafka := &Kafka{}28 kafka.initialize()29 kafka.consumeMessages()30}31import (32func main() {33 kafka := &Kafka{}34 kafka.initialize()35 kafka.consumeMessages()36}37import (

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 fmt.Println("Hello, playground")4}5func consumeMessages() {6 config := sarama.NewConfig()7 brokerList := []string{"localhost:9092"}8 consumer, err := sarama.NewConsumerGroup(brokerList, consumerGroup, config)9 if err != nil {10 panic(err)11 }12 defer func() {13 if err := consumer.Close(); err != nil {14 panic(err)15 }16 }()17 for {

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 kafka := kafka{}4 kafka.consumeMessages()5}6import (7type kafka struct {8}9func (kafka) consumeMessages() {10 consumer, err := sarama.NewConsumer([]string{"localhost:9092"}, nil)11 if err != nil {12 panic(err)13 }14 partitionList, err := consumer.Partitions("my_topic")15 if err != nil {16 panic(err)17 }18 for partition := range partitionList {19 pc, err := consumer.ConsumePartition("my_topic", int32(partition), sarama.OffsetNewest)20 if err != nil {21 panic(err)22 }23 defer pc.AsyncClose()24 go func(sarama.PartitionConsumer) {25 for msg := range pc.Messages() {26 fmt.Printf("Partition:%d Offset:%d Key:%v Value:%s", msg.Partition, msg.Offset, msg.Key, msg.Value)27 }28 }(pc)29 }30}31import (32type kafka struct {33}34func (kafka) produceMessages() {35 config := sarama.NewConfig()36 producer, err := sarama.NewSyncProducer([]string{"localhost:9092"}, config)37 if err != nil {38 panic(err)39 }40 defer func() {41 if err := producer.Close(); err != nil {42 panic(err)43 }44 }()45 msg := &sarama.ProducerMessage{46 Value: sarama.StringEncoder("testing 123"),47 }48 partition, offset, err := producer.SendMessage(msg)49 if err != nil {50 panic(err)51 }52 fmt.Printf("Message is stored in topic(%s)/​partition(%d)/​offset(%d)", "my_topic", partition, offset)53}

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2func main() {3 kafka := kafka.NewKafka()4 kafka.ConsumeMessages()5}6import (7type Kafka struct {8}9func NewKafka() *Kafka {10 return &Kafka{}11}12func (k *Kafka) ConsumeMessages() {13 k.consumer, err = sarama.NewConsumer(strings.Split("localhost:9092", ","), nil)14 if err != nil {15 panic(err)16 }17 defer func() {18 if err := k.consumer.Close(); err != nil {19 panic(err)20 }21 }()22 partitionList, err := k.consumer.Partitions("test")23 if err != nil {24 panic(err)25 }26 fmt.Println("Partitions: ", partitionList)27 wg.Add(len(partitionList))28 for partition := range partitionList {29 go func(partition int32) {30 defer wg.Done()31 partitionConsumer, err := k.consumer.ConsumePartition("test", partition, sarama.OffsetNewest)32 if err != nil {33 panic(err)34 }35 defer func() {36 if err := partitionConsumer.Close(); err != nil {37 panic(err)38 }39 }()40 signals := make(chan os.Signal, 1)41 signal.Notify(signals, os.Interrupt)42 for {43 select {44 case msg := <-partitionConsumer.Messages():45 fmt.Println("Consumed message offset ", msg.Offset, " value: ", string(msg.Value))46 }47 }48 fmt.Println("Consumed: ", strconv.Itoa(consumed))49 }(int32(partition))50 }51 wg.Wait()52}

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1import (2type kafka struct {3}4func (k *kafka) consumeMessages() {5 fmt.Println("Consumer started")6 c, err := kafka.NewConsumer(&kafka.ConfigMap{7 })8 if err != nil {9 panic(err)10 }11 c.SubscribeTopics([]string{k.topic}, nil)12 for {13 msg, err := c.ReadMessage(-1)14 if err == nil {15 var data map[string]interface{}16 json.Unmarshal(msg.Value, &data)17 fmt.Printf("Message on %s: %s18", msg.TopicPartition, string(msg.Value))19 fmt.Printf("JSON data: %v20 } else {21 fmt.Printf("Consumer error: %v (%v)22 }23 }24 c.Close()25}26func main() {27 k := kafka{28 }29 go k.consumeMessages()30 time.Sleep(1 * time.Second)31}32import (33type kafka struct {34}35func (k *kafka) produceMessages() {36 fmt.Println("Producer started")37 p, err := kafka.NewProducer(&kafka.ConfigMap{"bootstrap.servers": k.brokers})38 if err != nil {39 panic(err)40 }41 defer p.Close()42 go func() {43 for e := range p.Events() {44 switch ev := e.(type) {45 if ev.TopicPartition.Error != nil {46 fmt.Printf("Delivery failed: %v47 } else {48 fmt.Printf("Delivered message to %v

Full Screen

Full Screen

consumeMessages

Using AI Code Generation

copy

Full Screen

1func main() {2 kafka := Kafka{}3 kafka.consumeMessages()4}5import (6type Kafka struct {7}8func (k *Kafka) consumeMessages() {9 for {10 fmt.Println("Message consumed")11 time.Sleep(2 * time.Second)12 }13}14import (15type Kafka struct {16}17func (k *Kafka) consumeMessages() {18 for {19 fmt.Println("Message consumed")20 time.Sleep(2 * time.Second)21 }22}23import (24type Kafka struct {25}26func (k *Kafka) consumeMessages() {27 for {28 fmt.Println("Message consumed")29 time.Sleep(2 * time.Second)30 }31}32import (33type Kafka struct {34}35func (k *Kafka) consumeMessages() {36 for {37 fmt.Println("Message consumed")38 time.Sleep(2 * time.Second)39 }40}41import (42type Kafka struct {43}44func (k *Kafka) consumeMessages() {45 for {46 fmt.Println("Message consumed")47 time.Sleep(2 * time.Second)48 }49}50import (51type Kafka struct {52}53func (k *Kafka) consumeMessages() {54 for {55 fmt.Println("Message consumed")56 time.Sleep(2 * time.Second)57 }58}59import (60type Kafka struct {61}62func (k *Kafka) consumeMessages() {63 for {64 fmt.Println("Message consumed")65 time.Sleep(2 * time.Second)66 }67}

Full Screen

Full Screen

Blogs

Check out the latest blogs from LambdaTest on this topic:

How Testers Can Remain Valuable in Agile Teams

Traditional software testers must step up if they want to remain relevant in the Agile environment. Agile will most probably continue to be the leading form of the software development process in the coming years.

Fault-Based Testing and the Pesticide Paradox

In some sense, testing can be more difficult than coding, as validating the efficiency of the test cases (i.e., the ‘goodness’ of your tests) can be much harder than validating code correctness. In practice, the tests are just executed without any validation beyond the pass/fail verdict. On the contrary, the code is (hopefully) always validated by testing. By designing and executing the test cases the result is that some tests have passed, and some others have failed. Testers do not know much about how many bugs remain in the code, nor about their bug-revealing efficiency.

Introducing LambdaTest Analytics: Test Reporting Made Awesome ????

Collecting and examining data from multiple sources can be a tedious process. The digital world is constantly evolving. To stay competitive in this fast-paced environment, businesses must frequently test their products and services. While it’s easy to collect raw data from multiple sources, it’s far more complex to interpret it properly.

Putting Together a Testing Team

As part of one of my consulting efforts, I worked with a mid-sized company that was looking to move toward a more agile manner of developing software. As with any shift in work style, there is some bewilderment and, for some, considerable anxiety. People are being challenged to leave their comfort zones and embrace a continuously changing, dynamic working environment. And, dare I say it, testing may be the most ‘disturbed’ of the software roles in agile development.

Testing in Production: A Detailed Guide

When most firms employed a waterfall development model, it was widely joked about in the industry that Google kept its products in beta forever. Google has been a pioneer in making the case for in-production testing. Traditionally, before a build could go live, a tester was responsible for testing all scenarios, both defined and extempore, in a testing environment. However, this concept is evolving on multiple fronts today. For example, the tester is no longer testing alone. Developers, designers, build engineers, other stakeholders, and end users, both inside and outside the product team, are testing the product and providing feedback.

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful