feat(notifications): make it possible to send test alert notifications

closes #5847

pkg/api/alerting.go

@@ -214,6 +214,22 @@ func DeleteAlertNotification(c *middleware.Context) Response {
 	return ApiSuccess("Notification deleted")
 }
 
+//POST /api/alert-notifications/test
+func NotificationTest(c *middleware.Context, dto dtos.NotificationTestCommand) Response {
+	cmd := &alerting.NotificationTestCommand{
+		Name:     dto.Name,
+		Type:     dto.Type,
+		Severity: dto.Severity,
+		Settings: dto.Settings,
+	}
+
+	if err := bus.Dispatch(cmd); err != nil {
+		return ApiError(500, "Failed to send alert notifications", err)
+	}
+
+	return ApiSuccess("Test notification sent")
+}
+
 func GetAlertHistory(c *middleware.Context) Response {
 	alertId, err := getAlertIdForRequest(c)
 	if err != nil {

pkg/api/api.go

@@ -259,6 +259,7 @@ func Register(r *macaron.Macaron) {
 		r.Get("/alert-notifications", wrap(GetAlertNotifications))
 
 		r.Group("/alert-notifications", func() {
+			r.Post("/test", bind(dtos.NotificationTestCommand{}), wrap(NotificationTest))
 			r.Post("/", bind(m.CreateAlertNotificationCommand{}), wrap(CreateAlertNotification))
 			r.Put("/:notificationId", bind(m.UpdateAlertNotificationCommand{}), wrap(UpdateAlertNotification))
 			r.Get("/:notificationId", wrap(GetAlertNotificationById))

pkg/api/dtos/alerting.go

@@ -63,3 +63,10 @@ type AlertHistory struct {
 
 	Data *simplejson.Json `json:"data"`
 }
+
+type NotificationTestCommand struct {
+	Name     string           `json:"name"`
+	Type     string           `json:"type"`
+	Settings *simplejson.Json `json:"settings"`
+	Severity string           `json:"severity"`
+}