How to use Publish method of bus Package

Best Testkube code snippet using bus.Publish

event_bus.go

Source:event_bus.go Github

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...67}68func (b *EventBus) UnsubscribeAll(ctx context.Context, subscriber string) error {69 return b.pubsub.UnsubscribeAll(ctx, subscriber)70}71func (b *EventBus) Publish(eventType string, eventData TMEventData) error {72 // no explicit deadline for publishing events73 ctx := context.Background()74 b.pubsub.PublishWithTags(ctx, eventData, map[string]string{EventTypeKey: eventType})75 return nil76}77func (b *EventBus) validateAndStringifyTags(tags []cmn.KVPair, logger log.Logger) map[string]string {78 result := make(map[string]string)79 for _, tag := range tags {80 // basic validation81 if len(tag.Key) == 0 {82 logger.Debug("Got tag with an empty key (skipping)", "tag", tag)83 continue84 }85 result[string(tag.Key)] = string(tag.Value)86 }87 return result88}89func (b *EventBus) PublishEventNewBlock(data EventDataNewBlock) error {90 // no explicit deadline for publishing events91 ctx := context.Background()92 resultTags := append(data.ResultBeginBlock.Tags, data.ResultEndBlock.Tags...)93 tags := b.validateAndStringifyTags(resultTags, b.Logger.With("block", data.Block.StringShort()))94 // add predefined tags95 logIfTagExists(EventTypeKey, tags, b.Logger)96 tags[EventTypeKey] = EventNewBlock97 b.pubsub.PublishWithTags(ctx, data, tags)98 return nil99}100func (b *EventBus) PublishEventNewBlockHeader(data EventDataNewBlockHeader) error {101 // no explicit deadline for publishing events102 ctx := context.Background()103 resultTags := append(data.ResultBeginBlock.Tags, data.ResultEndBlock.Tags...)104 // TODO: Create StringShort method for Header and use it in logger.105 tags := b.validateAndStringifyTags(resultTags, b.Logger.With("header", data.Header))106 // add predefined tags107 logIfTagExists(EventTypeKey, tags, b.Logger)108 tags[EventTypeKey] = EventNewBlockHeader109 b.pubsub.PublishWithTags(ctx, data, tags)110 return nil111}112func (b *EventBus) PublishEventVote(data EventDataVote) error {113 return b.Publish(EventVote, data)114}115func (b *EventBus) PublishEventValidBlock(data EventDataRoundState) error {116 return b.Publish(EventValidBlock, data)117}118// PublishEventTx publishes tx event with tags from Result. Note it will add119// predefined tags (EventTypeKey, TxHashKey). Existing tags with the same names120// will be overwritten.121func (b *EventBus) PublishEventTx(data EventDataTx) error {122 // no explicit deadline for publishing events123 ctx := context.Background()124 tags := b.validateAndStringifyTags(data.Result.Tags, b.Logger.With("tx", data.Tx))125 // add predefined tags126 logIfTagExists(EventTypeKey, tags, b.Logger)127 tags[EventTypeKey] = EventTx128 logIfTagExists(TxHashKey, tags, b.Logger)129 tags[TxHashKey] = fmt.Sprintf("%X", data.Tx.Hash())130 logIfTagExists(TxHeightKey, tags, b.Logger)131 tags[TxHeightKey] = fmt.Sprintf("%d", data.Height)132 b.pubsub.PublishWithTags(ctx, data, tags)133 return nil134}135func (b *EventBus) PublishEventNewRoundStep(data EventDataRoundState) error {136 return b.Publish(EventNewRoundStep, data)137}138func (b *EventBus) PublishEventTimeoutPropose(data EventDataRoundState) error {139 return b.Publish(EventTimeoutPropose, data)140}141func (b *EventBus) PublishEventTimeoutWait(data EventDataRoundState) error {142 return b.Publish(EventTimeoutWait, data)143}144func (b *EventBus) PublishEventNewRound(data EventDataNewRound) error {145 return b.Publish(EventNewRound, data)146}147func (b *EventBus) PublishEventCompleteProposal(data EventDataCompleteProposal) error {148 return b.Publish(EventCompleteProposal, data)149}150func (b *EventBus) PublishEventPolka(data EventDataRoundState) error {151 return b.Publish(EventPolka, data)152}153func (b *EventBus) PublishEventUnlock(data EventDataRoundState) error {154 return b.Publish(EventUnlock, data)155}156func (b *EventBus) PublishEventRelock(data EventDataRoundState) error {157 return b.Publish(EventRelock, data)158}159func (b *EventBus) PublishEventLock(data EventDataRoundState) error {160 return b.Publish(EventLock, data)161}162func (b *EventBus) PublishEventValidatorSetUpdates(data EventDataValidatorSetUpdates) error {163 return b.Publish(EventValidatorSetUpdates, data)164}165func logIfTagExists(tag string, tags map[string]string, logger log.Logger) {166 if value, ok := tags[tag]; ok {167 logger.Error("Found predefined tag (value will be overwritten)", "tag", tag, "value", value)168 }169}170//-----------------------------------------------------------------------------171type NopEventBus struct{}172func (NopEventBus) Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error {173 return nil174}175func (NopEventBus) Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error {176 return nil177}178func (NopEventBus) UnsubscribeAll(ctx context.Context, subscriber string) error {179 return nil180}181func (NopEventBus) PublishEventNewBlock(data EventDataNewBlock) error {182 return nil183}184func (NopEventBus) PublishEventNewBlockHeader(data EventDataNewBlockHeader) error {185 return nil186}187func (NopEventBus) PublishEventVote(data EventDataVote) error {188 return nil189}190func (NopEventBus) PublishEventTx(data EventDataTx) error {191 return nil192}193func (NopEventBus) PublishEventNewRoundStep(data EventDataRoundState) error {194 return nil195}196func (NopEventBus) PublishEventTimeoutPropose(data EventDataRoundState) error {197 return nil198}199func (NopEventBus) PublishEventTimeoutWait(data EventDataRoundState) error {200 return nil201}202func (NopEventBus) PublishEventNewRound(data EventDataRoundState) error {203 return nil204}205func (NopEventBus) PublishEventCompleteProposal(data EventDataRoundState) error {206 return nil207}208func (NopEventBus) PublishEventPolka(data EventDataRoundState) error {209 return nil210}211func (NopEventBus) PublishEventUnlock(data EventDataRoundState) error {212 return nil213}214func (NopEventBus) PublishEventRelock(data EventDataRoundState) error {215 return nil216}217func (NopEventBus) PublishEventLock(data EventDataRoundState) error {218 return nil219}220func (NopEventBus) PublishEventValidatorSetUpdates(data EventDataValidatorSetUpdates) error {221 return nil222}...

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event_bus_test.go

Source:event_bus_test.go Github

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...10 cmn "github.com/tendermint/tendermint/libs/common"11 tmpubsub "github.com/tendermint/tendermint/libs/pubsub"12 tmquery "github.com/tendermint/tendermint/libs/pubsub/query"13)14func TestEventBusPublishEventTx(t *testing.T) {15 eventBus := NewEventBus()16 err := eventBus.Start()17 require.NoError(t, err)18 defer eventBus.Stop()19 tx := Tx("foo")20 result := abci.ResponseDeliverTx{Data: []byte("bar"), Tags: []cmn.KVPair{{Key: []byte("baz"), Value: []byte("1")}}}21 // PublishEventTx adds all these 3 tags, so the query below should work22 query := fmt.Sprintf("tm.event='Tx' AND tx.height=1 AND tx.hash='%X' AND baz=1", tx.Hash())23 txsSub, err := eventBus.Subscribe(context.Background(), "test", tmquery.MustParse(query))24 require.NoError(t, err)25 done := make(chan struct{})26 go func() {27 msg := <-txsSub.Out()28 edt := msg.Data().(EventDataTx)29 assert.Equal(t, int64(1), edt.Height)30 assert.Equal(t, uint32(0), edt.Index)31 assert.Equal(t, tx, edt.Tx)32 assert.Equal(t, result, edt.Result)33 close(done)34 }()35 err = eventBus.PublishEventTx(EventDataTx{TxResult{36 Height: 1,37 Index: 0,38 Tx: tx,39 Result: result,40 }})41 assert.NoError(t, err)42 select {43 case <-done:44 case <-time.After(1 * time.Second):45 t.Fatal("did not receive a transaction after 1 sec.")46 }47}48func TestEventBusPublishEventNewBlock(t *testing.T) {49 eventBus := NewEventBus()50 err := eventBus.Start()51 require.NoError(t, err)52 defer eventBus.Stop()53 block := MakeBlock(0, []Tx{}, nil, []Evidence{})54 resultBeginBlock := abci.ResponseBeginBlock{Tags: []cmn.KVPair{{Key: []byte("baz"), Value: []byte("1")}}}55 resultEndBlock := abci.ResponseEndBlock{Tags: []cmn.KVPair{{Key: []byte("foz"), Value: []byte("2")}}}56 // PublishEventNewBlock adds the tm.event tag, so the query below should work57 query := "tm.event='NewBlock' AND baz=1 AND foz=2"58 blocksSub, err := eventBus.Subscribe(context.Background(), "test", tmquery.MustParse(query))59 require.NoError(t, err)60 done := make(chan struct{})61 go func() {62 msg := <-blocksSub.Out()63 edt := msg.Data().(EventDataNewBlock)64 assert.Equal(t, block, edt.Block)65 assert.Equal(t, resultBeginBlock, edt.ResultBeginBlock)66 assert.Equal(t, resultEndBlock, edt.ResultEndBlock)67 close(done)68 }()69 err = eventBus.PublishEventNewBlock(EventDataNewBlock{70 Block: block,71 ResultBeginBlock: resultBeginBlock,72 ResultEndBlock: resultEndBlock,73 })74 assert.NoError(t, err)75 select {76 case <-done:77 case <-time.After(1 * time.Second):78 t.Fatal("did not receive a block after 1 sec.")79 }80}81func TestEventBusPublishEventNewBlockHeader(t *testing.T) {82 eventBus := NewEventBus()83 err := eventBus.Start()84 require.NoError(t, err)85 defer eventBus.Stop()86 block := MakeBlock(0, []Tx{}, nil, []Evidence{})87 resultBeginBlock := abci.ResponseBeginBlock{Tags: []cmn.KVPair{{Key: []byte("baz"), Value: []byte("1")}}}88 resultEndBlock := abci.ResponseEndBlock{Tags: []cmn.KVPair{{Key: []byte("foz"), Value: []byte("2")}}}89 // PublishEventNewBlockHeader adds the tm.event tag, so the query below should work90 query := "tm.event='NewBlockHeader' AND baz=1 AND foz=2"91 headersSub, err := eventBus.Subscribe(context.Background(), "test", tmquery.MustParse(query))92 require.NoError(t, err)93 done := make(chan struct{})94 go func() {95 msg := <-headersSub.Out()96 edt := msg.Data().(EventDataNewBlockHeader)97 assert.Equal(t, block.Header, edt.Header)98 assert.Equal(t, resultBeginBlock, edt.ResultBeginBlock)99 assert.Equal(t, resultEndBlock, edt.ResultEndBlock)100 close(done)101 }()102 err = eventBus.PublishEventNewBlockHeader(EventDataNewBlockHeader{103 Header: block.Header,104 ResultBeginBlock: resultBeginBlock,105 ResultEndBlock: resultEndBlock,106 })107 assert.NoError(t, err)108 select {109 case <-done:110 case <-time.After(1 * time.Second):111 t.Fatal("did not receive a block header after 1 sec.")112 }113}114func TestEventBusPublish(t *testing.T) {115 eventBus := NewEventBus()116 err := eventBus.Start()117 require.NoError(t, err)118 defer eventBus.Stop()119 const numEventsExpected = 14120 sub, err := eventBus.Subscribe(context.Background(), "test", tmquery.Empty{}, numEventsExpected)121 require.NoError(t, err)122 done := make(chan struct{})123 go func() {124 numEvents := 0125 for range sub.Out() {126 numEvents++127 if numEvents >= numEventsExpected {128 close(done)129 return130 }131 }132 }()133 err = eventBus.Publish(EventNewBlockHeader, EventDataNewBlockHeader{})134 require.NoError(t, err)135 err = eventBus.PublishEventNewBlock(EventDataNewBlock{})136 require.NoError(t, err)137 err = eventBus.PublishEventNewBlockHeader(EventDataNewBlockHeader{})138 require.NoError(t, err)139 err = eventBus.PublishEventVote(EventDataVote{})140 require.NoError(t, err)141 err = eventBus.PublishEventNewRoundStep(EventDataRoundState{})142 require.NoError(t, err)143 err = eventBus.PublishEventTimeoutPropose(EventDataRoundState{})144 require.NoError(t, err)145 err = eventBus.PublishEventTimeoutWait(EventDataRoundState{})146 require.NoError(t, err)147 err = eventBus.PublishEventNewRound(EventDataNewRound{})148 require.NoError(t, err)149 err = eventBus.PublishEventCompleteProposal(EventDataCompleteProposal{})150 require.NoError(t, err)151 err = eventBus.PublishEventPolka(EventDataRoundState{})152 require.NoError(t, err)153 err = eventBus.PublishEventUnlock(EventDataRoundState{})154 require.NoError(t, err)155 err = eventBus.PublishEventRelock(EventDataRoundState{})156 require.NoError(t, err)157 err = eventBus.PublishEventLock(EventDataRoundState{})158 require.NoError(t, err)159 err = eventBus.PublishEventValidatorSetUpdates(EventDataValidatorSetUpdates{})160 require.NoError(t, err)161 select {162 case <-done:163 case <-time.After(1 * time.Second):164 t.Fatalf("expected to receive %d events after 1 sec.", numEventsExpected)165 }166}167func BenchmarkEventBus(b *testing.B) {168 benchmarks := []struct {169 name string170 numClients int171 randQueries bool172 randEvents bool173 }{174 {"10Clients1Query1Event", 10, false, false},175 {"100Clients", 100, false, false},176 {"1000Clients", 1000, false, false},177 {"10ClientsRandQueries1Event", 10, true, false},178 {"100Clients", 100, true, false},179 {"1000Clients", 1000, true, false},180 {"10ClientsRandQueriesRandEvents", 10, true, true},181 {"100Clients", 100, true, true},182 {"1000Clients", 1000, true, true},183 {"10Clients1QueryRandEvents", 10, false, true},184 {"100Clients", 100, false, true},185 {"1000Clients", 1000, false, true},186 }187 for _, bm := range benchmarks {188 b.Run(bm.name, func(b *testing.B) {189 benchmarkEventBus(bm.numClients, bm.randQueries, bm.randEvents, b)190 })191 }192}193func benchmarkEventBus(numClients int, randQueries bool, randEvents bool, b *testing.B) {194 // for random* functions195 cmn.Seed(time.Now().Unix())196 eventBus := NewEventBusWithBufferCapacity(0) // set buffer capacity to 0 so we are not testing cache197 eventBus.Start()198 defer eventBus.Stop()199 ctx := context.Background()200 q := EventQueryNewBlock201 for i := 0; i < numClients; i++ {202 if randQueries {203 q = randQuery()204 }205 sub, err := eventBus.Subscribe(ctx, fmt.Sprintf("client-%d", i), q)206 if err != nil {207 b.Fatal(err)208 }209 go func() {210 for {211 select {212 case <-sub.Out():213 case <-sub.Cancelled():214 return215 }216 }217 }()218 }219 eventType := EventNewBlock220 b.ReportAllocs()221 b.ResetTimer()222 for i := 0; i < b.N; i++ {223 if randEvents {224 eventType = randEvent()225 }226 eventBus.Publish(eventType, EventDataString("Gamora"))227 }228}229var events = []string{230 EventNewBlock,231 EventNewBlockHeader,232 EventNewRound,233 EventNewRoundStep,234 EventTimeoutPropose,235 EventCompleteProposal,236 EventPolka,237 EventUnlock,238 EventLock,239 EventRelock,240 EventTimeoutWait,...

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menu.go

Source:menu.go Github

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...43 screen.Print(matrixx)44 }45 bus.SubscribeAsync("KEY", onKey, false)46 // display47 bus.Publish("KEY", event.KeyEvent{})48 return func() {49 bus.Unsubscribe("KEY", onKey)50 }51 }52}53func MainMenu(screen *screener.Screen, bus EventBus.Bus, saveLocation string) func() {54 options := []Option{55 {56 label: "Back",57 action: func() {58 bus.Publish("ROUTING", "document")59 },60 },61 {62 label: "Export as QR code",63 action: func() {64 bus.Publish("ROUTING", "qr")65 },66 },67 {68 label: "Open Document",69 action: func() {70 bus.Publish("ROUTING", "file-menu")71 },72 },73 {74 label: "New Document",75 action: func() {76 id, _ := gonanoid.New()77 config := utils.LoadConfig(saveLocation)78 config.LastOpenedDocument = path.Join(saveLocation, id+".txt")79 utils.SaveConfig(config, saveLocation)80 bus.Publish("ROUTING", "document")81 },82 },83 {84 label: "Settings",85 action: func() {86 bus.Publish("ROUTING", "settings-menu")87 },88 },89 {90 label: "Quit to XCSoar",91 action: func() {92 exec.Command("/opt/xcsoar/bin/KoboMenu").Start()93 bus.Publish("QUIT")94 },95 },96 }97 return createMenu("Menu", options)(screen, bus)98}99func FileMenu(screen *screener.Screen, bus EventBus.Bus, saveLocation string) func() {100 files, _ := os.ReadDir(saveLocation)101 options := []Option{102 {103 label: "Back",104 action: func() {105 bus.Publish("ROUTING", "menu")106 },107 },108 }109 sort.Slice(files, func(i, j int) bool {110 infoI, _ := files[i].Info()111 modTimeI := infoI.ModTime().Unix()112 infoJ, _ := files[j].Info()113 modTimeJ := infoJ.ModTime().Unix()114 return modTimeI > modTimeJ115 })116 for _, file := range files {117 if strings.HasSuffix(file.Name(), ".txt") {118 filePath := path.Join(saveLocation, file.Name())119 content, _ := os.ReadFile(path.Join(saveLocation, file.Name()))120 label := strings.Split(string(content), "\n")[0]121 if utils.LenString(label) > 30 {122 label = string([]rune(label)[0:30]) + "..."123 }124 options = append(options, Option{125 label: label,126 action: func() {127 config := utils.LoadConfig(saveLocation)128 config.LastOpenedDocument = filePath129 utils.SaveConfig(config, saveLocation)130 bus.Publish("ROUTING", "document")131 },132 })133 }134 }135 return createMenu("Open File", options)(screen, bus)136}137func SettingsMenu(screen *screener.Screen, bus EventBus.Bus, saveLocation string) func() {138 options := []Option{139 {140 label: "Back",141 action: func() {142 bus.Publish("ROUTING", "menu")143 },144 },145 {146 label: "Toggle light",147 action: func() {148 lightPath := "/sys/class/backlight/mxc_msp430_fl.0/brightness"149 light := "0"150 presentLightRaw, _ := os.ReadFile(lightPath)151 presentLight := strings.TrimSuffix(string(presentLightRaw), "\n")152 if presentLight == "0" {153 light = "10"154 } else {155 light = "0"156 }...

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Publish

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1import (2func main() {3 config := sarama.NewConfig()4 brokers := []string{"localhost:9092"}5 producer, err := sarama.NewSyncProducer(brokers, config)6 if err != nil {7 panic(err)8 }9 defer func() {10 if err := producer.Close(); err != nil {11 panic(err)12 }13 }()14 msg := &sarama.ProducerMessage{15 Value: sarama.StringEncoder("This is a message"),16 }17 partition, offset, err := producer.SendMessage(msg)18 if err != nil {19 fmt.Println("Error occured:", err)20 } else {21 fmt.Printf("Message is stored in topic(%s)/partition(%d)/offset(%d)22 }23}24Message is stored in topic(my_topic)/partition(0)/offset(0)25import (

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1import (2func main() {3 config := sarama.NewConfig()4 brokers := []string{"localhost:9092"}5 client, err := sarama.NewClient(brokers, config)6 if err != nil {7 log.Fatalln("Failed to start Sarama client:", err)8 }9 defer client.Close()10 producer, err := sarama.NewSyncProducerFromClient(client)11 if err != nil {12 log.Fatalln("Failed to start Sarama producer:", err)13 }14 defer producer.Close()15 for i := 0; i < 100; i++ {16 message := &sarama.ProducerMessage{17 Value: sarama.StringEncoder(fmt.Sprintf("This is a message! %d", i)),18 }19 partition, offset, err := producer.SendMessage(message)20 if err != nil {21 log.Fatalln("Failed to send message:", err)22 }23 log.Printf("> message sent to partition %d at offset %d\n", partition, offset)24 time.Sleep(time.Second)25 }26}

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1import (2func main() {3 consumer()4}5func consumer() {6 config := cluster.NewConfig()7 brokers := []string{"localhost:9092"}8 topics := []string{"test"}9 consumer, err := cluster.NewConsumer(brokers, "my-group", topics, config)10 if err != nil {11 panic(err)12 }13 defer consumer.Close()14 signals := make(chan os.Signal, 1)15 signal.Notify(signals, os.Interrupt)16 go func() {17 for {18 select {19 case msg, ok := <-consumer.Messages():20 if ok {21 fmt.Printf("Message on %s: %s\n", msg.Topic, string(msg.Value))22 }23 case err, ok := <-consumer.Errors():24 if ok {25 fmt.Println("Error: ", err.Error())26 }27 case ntf, ok := <-consumer.Notifications():28 if ok {29 fmt.Println("Rebalanced: ", ntf)30 }31 }32 }33 }()34 select {}35}36func init(config *cluster.Config) {37 config = cluster.NewConfig()38}39func publish(topic string, message string) {40 config := sarama.NewConfig()41 brokers := []string{"localhost:9092"}42 producer, err := sarama.NewSyncProducer(brokers, config)43 if err != nil {44 panic(err)45 }46 defer producer.Close()

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Publish

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1import (2func main() {3 bus := NewBus()4 go func() {5 for {6 bus.Publish("hello")7 time.Sleep(1 * time.Second)8 }9 }()10 go func() {11 for {12 msg := <-bus.Subscribe()13 fmt.Println(msg)14 }15 }()16 time.Sleep(10 * time.Second)17}18import (19func main() {20 bus := NewBus()21 go func() {22 for {23 bus.Publish("hello")24 time.Sleep(1 * time.Second)25 }26 }()27 go func() {28 for {29 msg := <-bus.Subscribe()30 fmt.Println(msg)31 }32 }()33 time.Sleep(10 * time.Second)34}35import (36func main() {37 bus := NewBus()38 go func() {39 for {40 bus.Publish("hello")41 time.Sleep(1 * time.Second)42 }43 }()44 go func() {45 for {46 msg := <-bus.Subscribe()47 fmt.Println(msg)48 }49 }()50 time.Sleep(10 * time.Second)51}52import (53func main() {54 bus := NewBus()55 go func() {56 for {57 bus.Publish("hello")58 time.Sleep(1 * time.Second)59 }60 }()61 go func() {62 for {63 msg := <-bus.Subscribe()64 fmt.Println(msg)65 }66 }()67 time.Sleep(10 * time.Second)68}69import (70func main() {71 bus := NewBus()72 go func() {73 for {74 bus.Publish("hello")75 time.Sleep(1 * time.Second)76 }77 }()78 go func() {79 for {80 msg := <-bus.Subscribe()81 fmt.Println(msg)82 }83 }()84 time.Sleep(10 * time.Second)85}86import

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1import (2func main() {3 logger.Init()4 bus.Init()5 bus.Subscribe("Test", func() {6 fmt.Println("Test")7 })8 bus.Publish("Test")9}10import (11func main() {12 logger.Init()13 bus.Init()14 bus.Subscribe("Test", func() {15 fmt.Println("Test")16 })17 bus.Publish("Test")18}19import (20func main() {21 logger.Init()22 bus.Init()23 bus.Subscribe("Test", func() {24 fmt.Println("Test")25 })26 bus.Publish("Test")27}28import (29func main() {30 logger.Init()31 bus.Init()32 bus.Subscribe("Test", func() {33 fmt.Println("Test")34 })35 bus.Publish("Test")36}37import (38func main() {39 logger.Init()40 bus.Init()41 bus.Subscribe("Test", func() {42 fmt.Println("Test")43 })44 bus.Publish("Test")45}46import (

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1import (2func main() {3 bus := bus.New()4 bus.Subscribe("event", func(data interface{}) {5 fmt.Println("Received event with data:", data)6 })7 bus.Publish("event", "Hello World")8}9import (10func main() {11 bus := bus.New()12 bus.Subscribe("event", func(data interface{}) {13 fmt.Println("Received event with data:", data)14 })15 bus.PublishAsync("event", "Hello World")16}17import (18func main() {19 bus := bus.New()20 bus.Subscribe("event", func(data interface{}) {21 fmt.Println("Received event with data:", data)22 })23 bus.PublishAsync("event", "Hello World")24}25import (26func main() {27 bus := bus.New()28 bus.Subscribe("event", func(data interface{}) {29 fmt.Println("Received event with data:", data)30 })31 bus.PublishAsync("event", "Hello World")32}

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1import (2func main() {3 b := NewBus()4 b.Subscribe("msg", func() {5 fmt.Println("Hello World")6 })7 b.Publish("msg")8}9import (10func main() {11 b := NewBus()12 b.Subscribe("msg", func(a int) {13 fmt.Println(a)14 })15 b.Publish("msg", 1)16}17import (18func main() {19 b := NewBus()20 b.Subscribe("msg", func(a, b int) {21 fmt.Println(a, b)22 })23 b.Publish("msg", 1, 2)24}25import (26func main() {27 b := NewBus()28 b.Subscribe("msg", func(a, b int) {29 fmt.Println(a, b)30 })31 b.Publish("msg", 1, 2, 3)32}33import (34func main() {35 b := NewBus()36 b.Subscribe("msg", func(a, b int) {37 fmt.Println(a, b)38 })39 b.Publish("msg", 1)40}41import (42func main() {43 b := NewBus()44 b.Subscribe("msg", func(a, b int) {45 fmt.Println(a, b)46 })47 b.Publish("msg", 1, 2)48}49import (50func main() {51 b := NewBus()52 b.Subscribe("msg", func(a, b int) {53 fmt.Println(a, b)54 })55 b.Publish("msg", 1, 2, 3)56}57import (

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1import (2func main() {3 fmt.Println("Starting")4 bus := NewBus()5 go bus.Subscribe("test", func(msg string) {6 fmt.Println("Got message: ", msg)7 })8 go bus.Subscribe("test", func(msg string) {9 fmt.Println("Got message: ", msg)10 })11 go bus.Subscribe("test", func(msg string) {12 fmt.Println("Got message: ", msg)13 })14 bus.Publish("test", "Hello World")15 bus.Publish("test", "Hello World")16 bus.Publish("test", "Hello World")17 time.Sleep(1 * time.Second)18}19import (20func main() {21 fmt.Println("Starting")22 bus := NewBus()23 go bus.Subscribe("test", func(msg string) {24 fmt.Println("Got message: ", msg)25 })26 go bus.Subscribe("test", func(msg string) {27 fmt.Println("Got message: ", msg)28 })29 go bus.Subscribe("test", func(msg string) {30 fmt.Println("Got message: ", msg)31 })32 bus.Publish("test", "Hello World")33 bus.Publish("test", "Hello World")34 bus.Publish("test", "Hello World")35 time.Sleep(1 * time.Second)36}37import (38func main() {39 fmt.Println("Starting")40 bus := NewBus()41 go bus.Subscribe("test", func(msg string) {42 fmt.Println("Got message: ", msg)43 })44 go bus.Subscribe("test", func(msg string) {45 fmt.Println("Got message: ", msg)46 })47 go bus.Subscribe("test", func(msg string) {48 fmt.Println("Got message: ", msg)49 })50 bus.Publish("test", "Hello World")51 bus.Publish("test", "Hello World")52 bus.Publish("test", "Hello World")53 time.Sleep(1 * time.Second)54}55import (56func main() {57 fmt.Println("Starting")58 bus := NewBus()59 go bus.Subscribe("test", func(msg string) {60 fmt.Println("Got message: ", msg)61 })62 go bus.Subscribe("test

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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.

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