Add Interval to UpdateConfig, and method for set it

bot.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	_ "log"
 	"net/http"
 	"net/url"
 	"os"
@@ -492,13 +493,12 @@ func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
 	ch := make(chan Update, bot.Buffer)
 
 	go func() {
+		ticker := time.NewTicker(config.Interval)
 		for {
 			select {
 			case <-bot.shutdownChannel:
 				return
-			default:
-			}
-
+			case <-ticker.C:
 				updates, err := bot.GetUpdates(config)
 				if err != nil {
 					log.Println(err)
@@ -515,6 +515,7 @@ func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
 					}
 				}
 			}
+		}
 	}()
 
 	return ch, nil

configs.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"net/url"
 	"strconv"
+	"time"
 )
 
 // Telegram constants
@@ -955,6 +956,13 @@ type UpdateConfig struct {
 	Offset   int
 	Limit    int
 	Timeout  int
+	Interval time.Duration
+}
+
+const UpdateDefaultInterval = time.Second
+
+func (uc *UpdateConfig) SetInterval(t time.Duration) {
+	uc.Interval = t
 }
 
 // WebhookConfig contains information about a SetWebhook request.

helpers.go

@@ -1,6 +1,7 @@
 package got
 
 import (
+	_ "log"
 	"net/url"
 )
 
@@ -385,6 +386,7 @@ func NewUpdate(offset int) UpdateConfig {
 		Offset:   offset,
 		Limit:    0,
 		Timeout:  0,
+		Interval: UpdateDefaultInterval,
 	}
 }