# What
Database changes notification library.
### Example
```go
package main
import (
"encoding/json"
"log"
"net/http"
"git.icod.de/dalu/notifier"
"github.com/gin-gonic/gin"
"gopkg.in/olahol/melody.v1"
)
func main() {
r := gin.Default()
m := melody.New()
n := notifier.NewNotifier(m)
h := NewHandler(n)
r.GET("/", h.Index)
r.GET("/ws", func(cx *gin.Context) {
m.HandleRequest(cx.Writer, cx.Request)
})
r.GET("/acme/ins", h.InsertDB)
go n.Listen(func(notification *notifier.Notification) {
b, e := json.Marshal(notification)
if e != nil {
log.Println(e.Error())
return
}
m.Broadcast(b)
})
r.Run(":5000")
}
type Handler struct {
notifier *notifier.Notifier
}
func NewHandler(n *notifier.Notifier) *Handler {
h := new(Handler)
h.notifier = n
return h
}
func (h *Handler) Index(cx *gin.Context) {
http.ServeFile(cx.Writer, cx.Request, "index.html")
}
func (h *Handler) InsertDB(cx *gin.Context) {
// Do database insert stuff
h.notifier.Notify("acme", "INSERT", []byte(`{"id": 1, "name": acme}`))
cx.JSON(201, map[string]interface{}{"status": "ok"})
}
```
```html
Melody example: chatting
```