How to use closeConnection method of ws Package

Best K6 code snippet using ws.closeConnection

main.go

Source:main.go

1package main2import (3	"go-stream/api"4	"go-stream/api/types"5	"go-stream/api/web_socket"6	"time"7)8const apiKey = "550ECBDB-B1EF-42FE-8702-19CCAD9C2A7C"9func main() {10	TestSendHello()11	//TestHeartbeat()12	//TestReconnect()13	//TestVolumeError()14	//TestWebSocket()15}16func TestWebSocket() {17	printHeader("TestWebSocket!")18	println(" * Connect!!")19	url := "ws://ws-sandbox.coinapi.io/v1/"20	ws := web_socket.NewWebSocket(url)21	println(" * GetHello: Single data type!")22	hello := getHello(false, false)23	b, _ := hello.GetJSON()24	_ = ws.WriteByteMessage(b)25	errHandler := logError26	msgHandler := printRawMsg27	err := ws.ReadByteMessages(msgHandler, errHandler)28	if err != nil {29		logError(err)30	}31	println(" * Wait!")32	time.Sleep(3 * time.Second)33	println(" * Close!")34	_ = ws.Close()35}36func TestVolumeError() {37	printHeader("TestVolumeError!")38	// Replicates error thrown when requesting volume data:39	//websocket: close 1006 (abnormal closure): unexpected EOF40	println(" * NewSDK!")41	sdk := api.NewSDK(apiKey)42	// verbose switches off console print of heartbeat & reconnect messages43	sys := getSysInvokes(false)44	println(" * SetErrorInvoke!")45	sdk.SetErrorInvoke(sys.ErrorInvoke)46	println(" * SetHeartBeatInvoke!")47	sdk.SetHeartBeatInvoke(sys.HeartBeatInvoke)48	println(" * SetReconnectInvoke!")49	sdk.SetReconnectInvoke(sys.ReconnectInvoke)50	println(" * SetVolumeInvoke!")51	VolInvoke := GetInvokeFunction(types.VOLUME)52	sdk.SetVolumeInvoke(VolInvoke)53	println(" * GetHello: Volume only!")54	hello := getVolumeHello(false)55	println(" * SendHello: Requesting Volume type only !")56	_ = sdk.SendHello(hello)57	println(" * Wait for messages!")58	time.Sleep(time.Second * 5)59	println(" * CloseConnection!")60	_ = sdk.CloseConnection()61	println("Goodbye!")62}63func TestSendHello() {64	printHeader("TestSendHello!")65	println(" * NewSDK!")66	sdk := api.NewSDK(apiKey)67	// verbose switches off console print of heartbeat & reconnect messages68	sys := getSysInvokes(false)69	println(" * SetErrorInvoke!")70	sdk.SetErrorInvoke(sys.ErrorInvoke)71	println(" * SetHeartBeatInvoke!")72	sdk.SetHeartBeatInvoke(sys.HeartBeatInvoke)73	println(" * SetReconnectInvoke!")74	sdk.SetReconnectInvoke(sys.ReconnectInvoke)75	println(" * SetOHLCVInvoke!")76	OHLCVInvoke := GetInvokeFunction(types.OHLCV)77	sdk.SetOHLCVInvoke(OHLCVInvoke)78	println(" * SetTradesInvoke!")79	tradeInvoke := GetInvokeFunction(types.TRADE)80	sdk.SetTradesInvoke(tradeInvoke)81	println(" * SetQuoteInvoke!")82	quoteInvoke := GetInvokeFunction(types.QUOTE)83	sdk.SetQuoteInvoke(quoteInvoke)84	println(" * SetExRateInvoke!")85	exRateInvoke := GetInvokeFunction(types.EXCHANGERATE)86	sdk.SetExRateInvoke(exRateInvoke)87	println(" * SetBookInvoke!")88	bookInvoke := GetInvokeFunction(types.BOOK_L2_FULL)89	sdk.SetBookInvoke(bookInvoke)90	println(" * GetHello: Single data type!")91	hello := getHello(false, false)92	println(" * SendHello: Single data type!")93	_ = sdk.SendHello(hello)94	println(" * Wait for messages!")95	time.Sleep(time.Second * 5)96	println(" * GetHello: Expanded data types!")97	hello = getHello(true, false)98	println(" * SendHello: Expanded data types!")99	_ = sdk.SendHello(hello)100	println(" * Wait for messages!")101	time.Sleep(time.Second * 5)102	println(" * CloseConnection!")103	_ = sdk.CloseConnection()104	println("Goodbye!")105}106func TestReconnect() {107	// This test only process OHLCV as no other invoke functions are set!108	printHeader("TestReconnect!")109	println(" * NewSDK!")110	sdk := api.NewSDK(apiKey)111	sys := getSysInvokes(true)112	println(" * SetErrorInvoke!")113	sdk.SetErrorInvoke(sys.ErrorInvoke)114	println(" * SetHeartBeatInvoke!")115	sdk.SetHeartBeatInvoke(sys.HeartBeatInvoke)116	println(" * SetReconnectInvoke!")117	sdk.SetReconnectInvoke(sys.ReconnectInvoke)118	println(" * SetOHLCVInvoke!")119	OHLCVInvoke := GetInvokeFunction(types.OHLCV)120	sdk.SetOHLCVInvoke(OHLCVInvoke)121	println(" * GetHello: Single data type!")122	hello := getHello(false, true)123	println(" * SendHello: Single data type!")124	_ = sdk.SendHello(hello)125	println(" * Wait for messages!")126	time.Sleep(time.Second * 10)127	println("******************")128	println("* Hard Reconnect *")129	println("******************")130	_ = sdk.Reconnect()131	println(" * Wait for messages!")132	time.Sleep(time.Second * 5)133	println(" * CloseConnection!")134	_ = sdk.CloseConnection()135	println("Goodbye!")136}137func TestHeartbeat() {138	// This test only process OHLCV as no other invoke functions are set!139	printHeader("TestHeartbeat!")140	println(" * NewSDK!")141	sdk := api.NewSDK(apiKey)142	sys := getSysInvokes(true)143	println(" * SetErrorInvoke!")144	sdk.SetErrorInvoke(sys.ErrorInvoke)145	println(" * SetHeartBeatInvoke!")146	sdk.SetHeartBeatInvoke(sys.HeartBeatInvoke)147	println(" * SetReconnectInvoke!")148	sdk.SetReconnectInvoke(sys.ReconnectInvoke)149	println(" * SetOHLCVInvoke!")150	OHLCVInvoke := GetInvokeFunction(types.OHLCV)151	sdk.SetOHLCVInvoke(OHLCVInvoke)152	println(" * GetHello: Heartbeat!")153	hello := getHello(false, true)154	println(" * SendHello: Heartbeat!")155	_ = sdk.SendHello(hello)156	println(" * Wait for messages!")157	time.Sleep(time.Second * 10)158	println(" * CloseConnection!")159	_ = sdk.CloseConnection()160	println("Goodbye!")161}162func printHeader(msg string) {163	println()164	println("=====================")165	println("Start: " + msg)166	println("=====================")167	println()168}...

frontend_handler.go

Source:frontend_handler.go

...36		log.Errorf("Error during upgrade: [%v]", err)37		http.Error(rw, "Failed to upgrade connection.", 500)38		return39	}40	defer closeConnection(ws)41	msgKey, respChannel, err := h.backend.initializeClient(hostKey)42	if err != nil {43		log.Errorf("Error during initialization: [%v]", err)44		closeConnection(ws)45		return46	}47	defer h.backend.closeConnection(hostKey, msgKey)48	// Send response messages to client49	go func() {50		defer closeConnection(ws)51		for {52			message, ok := <-respChannel53			if !ok {54				return55			}56			switch message.Type {57			case common.Body:58				var data []byte59				var e error60				msgType := 161				if binary {62					msgType = 263					data, e = base64.StdEncoding.DecodeString(message.Body)64					if e != nil {65						log.Errorf("Error decoding message: %v", e)66						closeConnection(ws)67						continue68					}69				} else {70					data = []byte(message.Body)71				}72				ws.SetWriteDeadline(time.Now().Add(10 * time.Second))73				if e := ws.WriteMessage(msgType, data); e != nil {74					closeConnection(ws)75				}76			case common.Close:77				closeConnection(ws)78			}79		}80	}()81	url := req.URL.String()82	if err = h.backend.connect(hostKey, msgKey, url); err != nil {83		return84	}85	// Send request messages to backend86	for {87		msgType, msg, err := ws.ReadMessage()88		if err != nil {89			return90		}91		var data string92		if binary {93			data = base64.StdEncoding.EncodeToString(msg)94		} else {95			data = string(msg)96		}97		if msgType == websocket.BinaryMessage || msgType == websocket.TextMessage {98			if err = h.backend.send(hostKey, msgKey, data); err != nil {99				return100			}101		}102	}103}104func (h *FrontendHandler) auth(req *http.Request) (*jwt.Token, string, error) {105	token, tokenParam, err := parseToken(req, h.parsedPublicKey)106	if err != nil {107		if tokenParam == "" {108			return nil, "", noAuthError{err: err.Error()}109		}110		return nil, "", fmt.Errorf("Error parsing token: %v. Token parameter: %v", err, tokenParam)111	}112	if !token.Valid {113		return nil, "", fmt.Errorf("Token not valid. Token parameter: %v", tokenParam)114	}115	hostUUID, found := token.Claims["hostUuid"]116	if found {117		if hostKey, ok := hostUUID.(string); ok && h.backend.hasBackend(hostKey) {118			return token, hostKey, nil119		}120	}121	return nil, "", fmt.Errorf("Invalid backend host requested: %v", hostUUID)122}123func closeConnection(ws *websocket.Conn) {124	ws.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""), time.Now().Add(time.Second))125	ws.Close()126}127func parseToken(req *http.Request, parsedPublicKey interface{}) (*jwt.Token, string, error) {128	tokenString := ""129	if authHeader := req.Header.Get("Authorization"); authHeader != "" {130		if len(authHeader) > 6 && strings.EqualFold("bearer", authHeader[0:6]) {131			tokenString = strings.Trim(authHeader[7:], " ")132		}133	}134	if tokenString == "" {135		tokenString = req.URL.Query().Get("token")136	}137	if tokenString == "" {...

subscribe.go

Source:subscribe.go

...58	var response string59	err := websocket.Message.Receive(s.ws, &response)60	if err != nil { // if call Close() or sever stopped, connect closed, can not receive message61		fmt.Println("receive publish message:  ", err)62		s.closeConnection()63		return nil, true64	}65	reply := new(publishInfo)66	err = json.Unmarshal([]byte(response), reply)67	if err != nil {68		fmt.Println("Can not decode publish data:  ", err)69		s.closeConnection()70		return nil, true71	}72	if reply.Params.Result == nil { // if call Unsubscribe(), connect closed, receive message is nil73		s.closeConnection()74		return nil, true75	}76	return reply.Params.Result, false77}78func (s *Subscribe) Unsubscribe(request string) error {79	if err := websocket.Message.Send(s.ws, request); err != nil {80		return fmt.Errorf("unsubscribe error: %s", err)81	}82	return nil83}84func (s *Subscribe) Close() error {85	s.closeConnection()86	return s.ws.Close()87}88func (s *Subscribe) closeConnection() {89	s.Stopped <- true90}...

closeConnection

Using AI Code Generation

1import (2var upgrader = websocket.Upgrader{3}4func main() {5	http.HandleFunc("/ws", wsEndpoint)6	http.ListenAndServe(":8080", nil)7}8func wsEndpoint(w http.ResponseWriter, r *http.Request) {9	upgrader.CheckOrigin = func(r *http.Request) bool { return true }10	ws, err := upgrader.Upgrade(w, r, nil)11	if err != nil {12		fmt.Println(err)13	}14	fmt.Println("Client Successfully Connected...")15	reader(ws)16}17func reader(conn *websocket.Conn) {18	for {19		messageType, p, err := conn.ReadMessage()20		if err != nil {21			fmt.Println(err)22		}23		fmt.Println(string(p))24		if err := conn.WriteMessage(messageType, p); err != nil {25			fmt.Println(err)26		}27		time.Sleep(time.Second * 1)28		conn.Close()29	}30}

closeConnection

Using AI Code Generation

1import (2func main() {3	u := url.URL{Scheme: "ws", Host: "localhost:8080", Path: "/ws"}4	fmt.Println("connecting to", u.String())5	c, _, err := websocket.DefaultDialer.Dial(u.String(), nil)6	if err != nil {7		fmt.Println("error in connection", err)8	}9	defer c.Close()10	fmt.Println("connection established")11}

closeConnection

Using AI Code Generation

1import (2func main() {3	if err != nil {4		fmt.Println("Error in dialing the websocket connection")5	}6	defer ws.Close()7	err = ws.WriteMessage(websocket.TextMessage, []byte("Hello World"))8	if err != nil {9		fmt.Println("Error in sending message to the server")10	}11	ws.Close()12	err = ws.WriteMessage(websocket.TextMessage, []byte("Hello World"))13	if err != nil {14		fmt.Println("Error in sending message to the server")15	}16	time.Sleep(5 * time.Second)17}

closeConnection

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/websockets", func(w http.ResponseWriter, r *http.Request) {4		ws, err := websocket.Upgrade(w, r, nil, 1024, 1024)5		if _, ok := err.(websocket.HandshakeError); ok {6			http.Error(w, "Not a websocket handshake", 400)7		} else if err != nil {8		}9		ws.Close()10	})11	fmt.Println("Server started on localhost:8000")12	http.ListenAndServe(":8000", nil)13}

closeConnection

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {4		upgrader := websocket.Upgrader{5			CheckOrigin: func(r *http.Request) bool {6			},7		}8		conn, err := upgrader.Upgrade(w, r, nil)9		if err != nil {10			log.Fatal(err)11		}12		defer conn.Close()13		_, msg, err := conn.ReadMessage()14		if err != nil {15			log.Fatal(err)16		}17		fmt.Println(string(msg))18	})19	log.Fatal(http.ListenAndServe(":8080", nil))20}21import (22func main() {23	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {24		upgrader := websocket.Upgrader{25			CheckOrigin: func(r *http.Request) bool {26			},27		}28		conn, err := upgrader.Upgrade(w, r, nil)29		if err != nil {30			log.Fatal(err)31		}32		defer conn.Close()33		_, msg, err := conn.ReadMessage()34		if err != nil {35			log.Fatal(err)36		}37		fmt.Println(string(msg))38	})39	log.Fatal(http.ListenAndServe(":8080", nil))40}

closeConnection

Using AI Code Generation

1import (2func main() {3	ws.Connect()4	ws.Close()5	fmt.Println("Connection closed")6}7import (8func main() {9	ws.Connect()10	ws.Send("Hello World")11	ws.Close()12}13import (14func main() {15	ws.Connect()16	ws.Send("Hello World")17	ws.OnMessage(func(message string) {18		fmt.Println(message)19	})20	ws.Close()21}22import (23func main() {24	ws.Connect()25	ws.Send("Hello World")26	ws.OnMessage(func(message string) {27		fmt.Println(message)28	})29	ws.OnError(func(err error) {30		fmt.Println(err)31	})32	ws.Close()33}34import (35func main() {36	ws.Connect()37	ws.Send("Hello World")38	ws.OnMessage(func(message string) {39		fmt.Println(message)40	})41	ws.OnError(func(err error) {42		fmt.Println(err)43	})44	ws.OnOpen(func() {45		fmt.Println("Connection Opened")46	})47	ws.Close()48}49import (50func main() {51	ws.Connect()52	ws.Send("Hello World")53	ws.OnMessage(func(message string) {54		fmt.Println(message)55	})56	ws.OnError(func(err error) {57		fmt.Println(err)58	})59	ws.OnOpen(func() {60		fmt.Println("Connection Opened")61	})

closeConnection

Using AI Code Generation

1import (2func main() {3	ws := ws.New()4	fmt.Println("Connection Established")5	ws.CloseConnection()6	fmt.Println("Connection Closed")7}

closeConnection

Using AI Code Generation

1import(2func main(){3	ws.init()4	for i:=0;i<10;i++{5		ws.send("hello")6		time.Sleep(time.Second)7	}8	ws.closeConnection()9}10import(11func main(){12	ws.init()13	for i:=0;i<10;i++{14		ws.send("hello")15		time.Sleep(time.Second)16	}17	ws.closeConnection()18}19import(20func main(){21	ws.init()22	for i:=0;i<10;i++{23		ws.send("hello")24		time.Sleep(time.Second)25	}26	ws.closeConnection()27}28import(29func main(){30	ws.init()31	for i:=0;i<10;i++{32		ws.send("hello")33		time.Sleep(time.Second)34	}35	ws.closeConnection()36}37import(38func main(){39	ws.init()40	for i:=0;i<10;i++{41		ws.send("hello")42		time.Sleep(time.Second)43	}44	ws.closeConnection()45}

closeConnection

Using AI Code Generation

1import (2func main() {3	ws := websocket.New()4	ws.Send("Hello from client")5	fmt.Println(ws.Receive())6	ws.CloseConnection()7	c := make(chan os.Signal)8	signal.Notify(c, os.Interrupt, syscall.SIGTERM)9}

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