61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
package handlers
|
|
|
|
import (
|
|
"encoding/json"
|
|
"log"
|
|
"sync"
|
|
|
|
"github.com/gofiber/fiber/v2"
|
|
"github.com/gofiber/websocket/v2"
|
|
)
|
|
|
|
var (
|
|
subscribers = sync.Map{}
|
|
)
|
|
|
|
func wsRouter(router fiber.Router) error {
|
|
router.Use("/", upgradeWebsocket)
|
|
router.Get("/", websocket.New(handleWebsocket))
|
|
return nil;
|
|
}
|
|
|
|
func upgradeWebsocket(c *fiber.Ctx) error {
|
|
if websocket.IsWebSocketUpgrade(c) {
|
|
c.Locals("allowed", true)
|
|
return c.Next()
|
|
}
|
|
return fiber.ErrUpgradeRequired
|
|
}
|
|
|
|
func handleWebsocket(c *websocket.Conn) {
|
|
subscribers.Store(c, true)
|
|
defer func() {
|
|
subscribers.Delete(c)
|
|
c.Close()
|
|
}()
|
|
|
|
for {
|
|
_, _, err := c.ReadMessage()
|
|
if err != nil {
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func publish(content fiber.Map) {
|
|
jsonMessage, err := json.Marshal(content)
|
|
if err != nil {
|
|
log.Println("Error marshalling JSON:", err)
|
|
return
|
|
}
|
|
|
|
subscribers.Range(func(key, value interface{}) bool {
|
|
s := key.(*websocket.Conn)
|
|
if err := s.WriteMessage(websocket.TextMessage, jsonMessage); err != nil {
|
|
log.Println("Error writing to websocket:", err)
|
|
s.Close()
|
|
subscribers.Delete(s)
|
|
}
|
|
return true
|
|
})
|
|
} |