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- package main
- import (
- "encoding/json"
- "fmt"
- "log"
- "net/url"
- "time"
- "github.com/gorilla/websocket"
- )
- type Request struct {
- Type string `json:"type"`
- UUID string `json:"uuid"`
- CommandID string `json:"commandId"`
- Parameter interface{} `json:"parameter"`
- }
- type Response struct {
- CommandID string `json:"commandId"`
- ErrorCode string `json:"errorCode"`
- Results map[string]string `json:"results"`
- Status string `json:"status"`
- Time int64 `json:"time"`
- Type string `json:"type"`
- UUID string `json:"uuid"`
- }
- type StatusMessage struct {
- Type string `json:"type"`
- Topic string `json:"topic"`
- Time int64 `json:"time"`
- Data interface{} `json:"data"`
- }
- func SendWebsocketRequest(serverURL, path string, request Request) (string, error) {
-
- u := url.URL{Scheme: "ws", Host: serverURL, Path: path}
-
- dialer := websocket.Dialer{
- ReadBufferSize: 1024,
- WriteBufferSize: 1024,
-
- HandshakeTimeout: 5 * time.Second,
- }
-
- conn, _, err := dialer.Dial(u.String(), nil)
- if err != nil {
- return "", fmt.Errorf("dial: %w", err)
- }
- defer conn.Close()
-
- requestJSON, err := json.Marshal(request)
- if err != nil {
- return "", fmt.Errorf("marshal request: %w", err)
- }
-
- err = conn.WriteMessage(websocket.TextMessage, requestJSON)
- if err != nil {
- return "", fmt.Errorf("write: %w", err)
- }
-
- _, responseBytes, err := conn.ReadMessage()
- if err != nil {
- return "", fmt.Errorf("read: %w", err)
- }
-
- var response Response
- err = json.Unmarshal(responseBytes, &response)
- if err != nil {
- return "", fmt.Errorf("unmarshal response: %w", err)
- }
-
- return response.Results["sn"], nil
- }
- func receiveHandler(connection *websocket.Conn) {
- for {
- time.Sleep(1 * time.Second)
- _, msg, err := connection.ReadMessage()
- if err != nil {
- log.Println("Error in receive:", err)
- break
- }
- log.Printf("Received: %s\n", msg)
-
- var statusMessage StatusMessage
- err = json.Unmarshal(msg, &statusMessage)
- if err != nil {
- log.Println("Error in receive:", err)
- break
- }
- fmt.Println("statusMessage:", statusMessage)
- if statusMessage.Type == "push" && statusMessage.Topic == "robotStatus" {
- data := statusMessage.Data.(map[string]interface{})
- fmt.Println("statusMessage.Data", data)
- fmt.Println("statusMessage.Data[\"taskStatus\"]", data["taskStatus"])
- }
- }
- }
- func main() {
-
- serverURL := "192.168.1.104:9002"
- path := "/"
-
-
-
-
-
-
-
-
-
-
-
-
- u := url.URL{Scheme: "ws", Host: serverURL, Path: path}
-
- dialer := websocket.Dialer{
- ReadBufferSize: 1024,
- WriteBufferSize: 1024,
-
- HandshakeTimeout: 5 * time.Second,
- }
-
- conn, _, err := dialer.Dial(u.String(), nil)
- if err != nil {
- fmt.Println("err:", err)
- }
- defer conn.Close()
- go receiveHandler(conn)
- select {}
- }
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