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notification.go
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notification.go
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package main
import (
"net/http"
"strings"
"sync"
"github.com/gin-gonic/gin"
)
type Notification struct {
Topic string `json:"topic"`
WebHook string `json:"webhook"`
}
var notifications = make(map[string][]Notification)
var notificationsMu = new(sync.Mutex)
func SubscribeHandler(ctx *gin.Context) {
var notification Notification
if err := ctx.ShouldBind(¬ification); err != nil || notification.Topic == "" || notification.WebHook == "" {
ctx.JSON(http.StatusBadRequest, map[string]string{"message": "missing or invalid request notification"})
return
}
notificationsMu.Lock()
defer notificationsMu.Unlock()
notifications[notification.Topic] = append(notifications[notification.Topic], notification)
ctx.JSON(http.StatusOK, map[string]bool{"message": true})
}
func PushNotification(topic string) {
notificationsMu.Lock()
defer notificationsMu.Unlock()
notificationList, ok := notifications[topic]
if !ok || len(notificationList) <= 0 {
return
}
for _, notification := range notificationList {
_, err := http.Post(notification.WebHook, "application/json", strings.NewReader(topic))
if err != nil {
log.Fatalf("notification post [%s] error: %s\n", notification.WebHook, err.Error())
}
}
}