feat: implement telegram bot plugin (#1740)

plugin/telegram/api_get_updates.go

@@ -0,0 +1,23 @@
+package telegram
+
+import (
+	"context"
+	"net/url"
+	"strconv"
+)
+
+// GetUpdates make a getUpdates api request.
+func (r *Robot) GetUpdates(ctx context.Context, offset int) ([]Update, error) {
+	formData := url.Values{
+		"timeout": {"60"},
+		"offset":  {strconv.Itoa(offset)},
+	}
+
+	var result []Update
+	err := r.postForm(ctx, "/getUpdates", formData, &result)
+	if err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}