feat(alerting): add api route for alert changes

pkg/api/alerting.go

@@ -21,6 +21,19 @@ func ValidateOrgAlert(c *middleware.Context) {
 	}
 }
 
+// GET /api/alert_rule
+func GetAlertChanges(c *middleware.Context) Response {
+	query := models.GetAlertChangesQuery{
+		OrgId: c.OrgId,
+	}
+
+	if err := bus.Dispatch(&query); err != nil {
+		return ApiError(500, "List alerts failed", err)
+	}
+
+	return Json(200, query.Result)
+}
+
 // GET /api/alert_rule
 func GetAlerts(c *middleware.Context) Response {
 	query := models.GetAlertsQuery{

pkg/api/api.go

@@ -237,6 +237,7 @@ func Register(r *macaron.Macaron) {
 		r.Get("/metrics/test", GetTestMetrics)
 
 		r.Group("/alert_rule", func() {
+			r.Get("/changes", wrap(GetAlertChanges))
 			r.Get("/", wrap(GetAlerts))
 			r.Get("/:id", ValidateOrgAlert, wrap(GetAlert))
 		})