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How to use consumeMessages method of rabbitmq Package

Best Venom code snippet using rabbitmq.consumeMessages

engine.go

Source:engine.go

1package main2import (3	"context"4	"github.com/coreos/go-systemd/activation"5	"github.com/gorilla/handlers"6	"golang.org/x/sync/errgroup"7	"os"8	"github.com/norwoodj/hashbash-backend-go/pkg/dao"9	"github.com/norwoodj/hashbash-backend-go/pkg/metrics"10	"github.com/norwoodj/hashbash-backend-go/pkg/rabbitmq"11	"github.com/norwoodj/hashbash-backend-go/pkg/rainbow"12	"github.com/norwoodj/hashbash-backend-go/pkg/util"13	"github.com/rs/zerolog/log"14	"github.com/spf13/cobra"15	"github.com/spf13/viper"16)17func toErrFunc(f func(chan error)) func() error {18	startErrors := make(chan error)19	return func() error {20		f(startErrors)21		for e := range startErrors {22			return e23		}24		return nil25	}26}27func startConsumers(28	consumers rabbitmq.HashbashMqConsumerWorkers,29	startErrGroup *errgroup.Group,30	shutdownErrGroup *errgroup.Group,31) chan bool {32	quit := make(chan bool)33	log.Info().Msg("Starting hashbash consumers...")34	startErrGroup.Go(toErrFunc(35		func(startErrors chan error) {36			consumers.HashbashDeleteRainbowTableConsumer.ConsumeMessages(quit, startErrors)37		},38	))39	startErrGroup.Go(toErrFunc(40		func(startErrors chan error) {41			consumers.HashbashGenerateRainbowTableConsumer.ConsumeMessages(quit, startErrors)42		},43	))44	startErrGroup.Go(toErrFunc(45		func(startErrors chan error) {46			consumers.HashbashSearchRainbowTableConsumer.ConsumeMessages(quit, startErrors)47		},48	))49	return quit50}51func registerShutdownConsumers(quit chan bool, ctx context.Context) {52	<-ctx.Done()53	close(quit)54}55func hashbashEngine(_ *cobra.Command, _ []string) {56	err := util.SetupLogging()57	if err != nil {58		log.Error().Err(err).Msg("Failed to setup logging")59		os.Exit(1)60	}61	util.DoInitialDelay()62	dbEngine := viper.GetString("database-engine")63	db := dao.GetConnectionOrDie(dbEngine)64	rainbowTableService := dao.NewRainbowTableService(db)65	rainbowChainService := dao.NewRainbowChainService(db, dbEngine)66	rainbowTableSearchService := dao.NewRainbowTableSearchService(db)67	generateJobConfig := rainbow.TableGenerateJobConfig{68		ChainBatchSize: viper.GetInt64("generate-batch-size"),69		NumThreads:     viper.GetInt("generate-num-threads"),70	}71	searchJobConfig := rainbow.TableSearchJobConfig{72		SearchHashBatchSize: viper.GetInt("search-batch-size"),73		NumThreads:          viper.GetInt("search-num-threads"),74	}75	chainGenerationSummary := metrics.NewRainbowChainSummary("chain", "generate_seconds")76	chainWriteSummary := metrics.NewRainbowChainSummary("chain", "write_seconds")77	chainsCreatedCounter := metrics.NewRainbowChainCounter("chain", "created_total")78	rainbowTableGenerateJobService := rainbow.NewRainbowTableGeneratorJobService(79		generateJobConfig,80		rainbowChainService,81		rainbowTableService,82		chainGenerationSummary,83		chainWriteSummary,84		chainsCreatedCounter,85	)86	rainbowTableSearchJobService := rainbow.NewRainbowTableSearchJobService(87		searchJobConfig,88		rainbowChainService,89		rainbowTableService,90		rainbowTableSearchService,91	)92	connection := rabbitmq.AcquireMqConnectionOrDie()93	defer connection.Close()94	hashbashConsumers, err := rabbitmq.CreateConsumerWorkers(95		connection,96		rainbowTableService,97		rainbowTableGenerateJobService,98		rainbowTableSearchJobService,99	)100	if err != nil {101		log.Error().Err(err).Msg("Failed to instantiate rabbitmq consumers")102		os.Exit(1)103	}104	done, cancel := context.WithCancel(context.Background())105	startErrGroup, _ := errgroup.WithContext(done)106	shutdownErrGroup, _ := errgroup.WithContext(done)107	quit := startConsumers(hashbashConsumers, startErrGroup, shutdownErrGroup)108	go registerShutdownConsumers(quit, done)109	systemdListenersByName, err := activation.ListenersWithNames()110	if err != nil {111		log.Fatal().112			Err(err).113			Msg("Failed to retrieve systemd sockets by name")114	}115	managementHandler := handlers.LoggingHandler(os.Stdout, util.GetManagementHandler())116	for _, addr := range viper.GetStringSlice("management-addr") {117		listener := util.GetTcpListenerOrDie(addr)118		util.StartHttpHandler(startErrGroup, shutdownErrGroup, done, listener, managementHandler)119	}120	for _, socketPath := range viper.GetStringSlice("management-sock") {121		listener := util.GetUnixSocketListenerOrDie(socketPath)122		util.StartHttpHandler(startErrGroup, shutdownErrGroup, done, listener, managementHandler)123	}124	for _, socketFdName := range viper.GetStringSlice("management-name") {125		listeners := util.GetSystemdListenersOrDie(socketFdName, systemdListenersByName)126		for _, l := range listeners {127			util.StartHttpHandler(startErrGroup, shutdownErrGroup, done, l, managementHandler)128		}129	}130	util.WaitForSignalGracefulShutdown(cancel, startErrGroup, shutdownErrGroup)131}...

rabbitMQ.go

Source:rabbitMQ.go

1package repository2import (3	"errors"4	"fmt"5	"log"6	"github.com/streadway/amqp"7	"github.com/wagaru/recodar-rest/internal/config"8	"github.com/wagaru/recodar-rest/internal/domain"9)10type MessageBrokerRepository interface {11	Disconnect()12	SendMessages(*domain.RabbitMQMeta, []byte) error13	ConsumeMessages(*domain.RabbitMQMeta) (MessageBrokerMessage, error)14}15type RabbitMQRepo struct {16	connection  *amqp.Connection17	channelPool map[string]*amqp.Channel18}19type MessageBrokerMessage <-chan amqp.Delivery20func NewRabbitMQRepo(config *config.Config) (MessageBrokerRepository, error) {21	url := fmt.Sprintf(22		"amqp://%s:%s@%s:%v",23		config.RabbitMQUserName,24		config.RabbitMQPassword,25		config.RabbitMQHost,26		config.RabbitMQPort,27	)28	connection, err := amqp.Dial(url)29	if err != nil {30		return nil, fmt.Errorf("create rabbitMQ connection failed:%w", err)31	}32	defaultChannel, err := connection.Channel()33	if err != nil {34		return nil, fmt.Errorf("create rabbitMQ channel failed:%w", err)35	}36	return &RabbitMQRepo{37		connection: connection,38		channelPool: map[string]*amqp.Channel{39			"default": defaultChannel,40		},41	}, nil42}43func (r *RabbitMQRepo) Disconnect() {44	for _, channel := range r.channelPool {45		err := channel.Close()46		if err != nil {47			log.Printf("close rabbitmq channel failed: %v", err)48		}49	}50	err := r.connection.Close()51	if err != nil {52		log.Printf("close rabbitmq connection failed: %v", err)53	}54}55func (r *RabbitMQRepo) SendMessages(meta *domain.RabbitMQMeta, message []byte) error {56	channelName := meta.ChannelName57	if channelName == "" {58		channelName = "default"59	}60	var ch *amqp.Channel61	if v, ok := r.channelPool[channelName]; ok {62		ch = v63	} else {64		ch, err := r.connection.Channel()65		if err != nil {66		}67		r.channelPool[channelName] = ch68	}69	if meta.ExchangeType == "" {70		return errors.New(fmt.Sprintf("Invalid exchange type provided: %v", meta.ExchangeType))71	}72	err := ch.ExchangeDeclare(meta.ExchangeName, meta.ExchangeType, true, false, false, false, nil)73	if err != nil {74		return fmt.Errorf("Declare rabbitMQ exchange failed.%w", err)75	}76	err = ch.Publish(meta.ExchangeName, meta.RoutingKey, false, false, amqp.Publishing{77		ContentType: "application/json",78		Body:        message,79	})80	if err != nil {81		return fmt.Errorf("Publish rabbitMQ messages failed.%w", err)82	}83	return nil84}85func (r *RabbitMQRepo) ConsumeMessages(meta *domain.RabbitMQMeta) (MessageBrokerMessage, error) {86	channelName := meta.ChannelName87	if channelName == "" {88		channelName = "default"89	}90	var ch *amqp.Channel91	if v, ok := r.channelPool[channelName]; ok {92		ch = v93	} else {94		ch, err := r.connection.Channel()95		if err != nil {96		}97		r.channelPool[channelName] = ch98	}99	if meta.ExchangeType == "" {100		return nil, errors.New(fmt.Sprintf("Invalid exchange type provided: %v", meta.ExchangeType))101	}102	err := ch.ExchangeDeclare(meta.ExchangeName, meta.ExchangeType, true, false, false, false, nil)103	if err != nil {104		return nil, fmt.Errorf("Declare rabbitMQ exchange failed.%w", err)105	}106	queue, err := ch.QueueDeclare(meta.QueueName, true, false, false, false, nil)107	if err != nil {108		return nil, fmt.Errorf("Declare rabbitMQ queue failed.%w", err)109	}110	err = ch.QueueBind(queue.Name, meta.BindingKey, meta.ExchangeName, false, nil)111	if err != nil {112		return nil, fmt.Errorf("Bind rabbitMQ queue failed.%w", err)113	}114	msgs, err := ch.Consume(queue.Name, "", false, false, false, false, nil)115	if err != nil {116		return nil, fmt.Errorf("Consume rabbitMQ queue failed.%w", err)117	}118	return msgs, nil119}...

consumer.go

Source:consumer.go

1package broker2import (3	"errors"4	"github.com/streadway/amqp"5	"log"6)7type Consumer struct {8	Info     *ConnectionInfo9	Callback func(d Delivery)10}11func (conn *Connection) Register(c *Consumer) error {12	ch := conn.channel13	ch.consumers = append(ch.consumers, c)14	return ch.startConsumer(c)15}16func (ch *Channel) restartConsumers() error {17	for _, cons := range ch.consumers {18		if err := ch.startConsumer(cons); err != nil {19			return err20		}21	}22	return nil23}24func (ch *Channel) startConsumer(c *Consumer) error {25	info := c.Info26	if info == nil {27		return errors.New("binding info missing")28	}29	log.Println("[broker][starting_consumer]", info.QueueName)30	q, err := ch.BindQueue(info.ExchangeName, info.QueueName, info.RoutingKey)31	if err != nil {32		return err33	}34	msgs, err := ch.ConsumeMessages(q.Name)35	if err != nil {36		return err37	}38	go func() {39		for m := range msgs {40			c.Callback(m)41			m.Ack(false)42		}43	}()44	return nil45}46func (ch *Channel) BindQueue(exchangeName, queueName, routingKey string) (amqp.Queue, error) {47	var err error48	var q amqp.Queue49	if ch.amqpChannel == nil {50		return q, errors.New("rabbitmq connection missing")51	}52	err = ch.exchangeDeclare(exchangeName)53	if err != nil {54		return q, err55	}56	q, err = ch.amqpChannel.QueueDeclare(57		queueName, // name58		true,      // durable59		false,     // delete when unused60		false,     // exclusive61		false,     // no-wait62		nil,       // arguments63	)64	if err != nil {65		return q, err66	}67	err = ch.amqpChannel.QueueBind(68		q.Name,       // queue name69		routingKey,   // routing key70		exchangeName, // exchange71		false,72		nil,73	)74	return q, err75}76func (ch *Channel) Consume(queueName string) (<-chan amqp.Delivery, error) {77	if ch.amqpChannel == nil {78		return nil, errors.New("rabbitmq connection missing")79	}80	return ch.startConsume(queueName)81}82func (ch *Channel) ConsumeMessages(queueName string) (<-chan Delivery, error) {83	if ch.amqpChannel == nil {84		return nil, errors.New("rabbitmq connection missing")85	}86	messages, err := ch.startConsume(queueName)87	if err != nil {88		return nil, err89	}90	deliveries := make(chan Delivery)91	go func() {92		for m := range messages {93			logDelivery(m)94			deliveries <- *NewDelivery(m)95		}96		close(deliveries)97	}()98	return (<-chan Delivery)(deliveries), nil99}100func (ch *Channel) startConsume(queueName string) (<-chan amqp.Delivery, error) {101	return ch.amqpChannel.Consume(102		queueName, // queue103		"",        // consumer104		false,     // auto ack105		false,     // exclusive106		false,     // no local107		false,     // no wait108		nil,       // args109	)110}...

consumeMessages

Using AI Code Generation

1import (2func main() {3	rabbitmq := NewRabbitMQSimple("test")4	rabbitmq.ConsumeMessages()5}6import (7func main() {8	rabbitmq := NewRabbitMQSimple("test")9	rabbitmq.PublishMessage("Hello World!")10}11import (12func main() {13	rabbitmq := NewRabbitMQSimple("test")14	rabbitmq.ConsumeMessages()15}16import (17func main() {18	rabbitmq := NewRabbitMQSimple("test")19	rabbitmq.ConsumeMessages()20}21import (22func main() {23	rabbitmq := NewRabbitMQSimple("test")24	rabbitmq.ConsumeMessages()25}26import (27func main() {28	rabbitmq := NewRabbitMQSimple("test")29	rabbitmq.ConsumeMessages()30}31import (32func main() {33	rabbitmq := NewRabbitMQSimple("test")34	rabbitmq.ConsumeMessages()35}36import (37func main() {38	rabbitmq := NewRabbitMQSimple("test")39	rabbitmq.ConsumeMessages()40}41import (

consumeMessages

Using AI Code Generation

1import (2func main() {3	rabbitmq.ConsumeMessages("test_queue", "test_consumer", func(delivery []byte) {4		fmt.Println("Received a message: ", string(delivery))5	})6}7import (8type RabbitMQ struct {9}10func New(rabbitmqURL string) *RabbitMQ {11	conn, err := amqp.Dial(rabbitmqURL)12	failOnError(err, "Failed to connect to RabbitMQ")13	return &RabbitMQ{conn: conn}14}15func (r *RabbitMQ) ConsumeMessages(queue, consumer string, callback func(delivery []byte)) {16	ch, err := r.conn.Channel()17	failOnError(err, "Failed to open a channel")18	defer ch.Close()19	msgs, err := ch.Consume(20	failOnError(err, "Failed to register a consumer")21	forever := make(chan bool)22	go func() {23		for d := range msgs {24			callback(d.Body)25		}26	}()27}28func failOnError(err error, msg string) {29	if err != nil {30		fmt.Printf("%s: %s31	}32}

consumeMessages

Using AI Code Generation

1import (2type RabbitMQ struct {3}4func NewRabbitMQ() (*RabbitMQ, error) {5	if err != nil {6	}7	channel, err := conn.Channel()8	if err != nil {9	}10	queue, err := channel.QueueDeclare(11	if err != nil {12	}13	return &RabbitMQ{14	}, nil15}16func (r *RabbitMQ) ConsumeMessages() (<-chan amqp.Delivery, error) {17	msgs, err := r.channel.Consume(18	if err != nil {19	}20}21func main() {22	rabbit, err := NewRabbitMQ()23	if err != nil {24		fmt.Println(err)25		os.Exit(1)26	}27	defer rabbit.conn.Close()28	defer rabbit.channel.Close()29	msgs, err := rabbit.ConsumeMessages()30	if err != nil {31		fmt.Println(err)32		os.Exit(1)33	}

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