Runtime Error: Invalid memory address or nil pointer dereference

[mxzinke]

Hey Guys,

just bumped into this websocket topic and tried out this pkg for connecting to an open API. Maybe I am doing something wrong

Go Version: go1.13.5 darwin/amd64 (at Mac)

My Code:

func (api BrokerAPI) setupUpdateStream() {
	type authData struct {
		KeyID     string `json:"key_id"`
		SecretKey string `json:"secret_key"`
	}
	type streamAuthAction struct {
		Action string      `json:"action"`
		Data   interface{} `json:"data"`
	}

	streamURL := fmt.Sprintf("ws://%s/%s/%s", api.URL, apiVersion, streamEndpoint)

	socket := gowebsocket.New(streamURL)
	socket.Connect()

	streamAuthData := streamAuthAction{Action: "authenticate", Data: authData{KeyID: api.Key, SecretKey: api.Secret}}
	parsedAuthData, authErr := json.Marshal(streamAuthData)
	if authErr != nil {
		log.Fatalf("Authentication failed, because stream messages: %s", authErr)
	}

	socket.SendBinary(parsedAuthData)

	...
}