Add MFolderIDsAPICount metric to count FolderIDs in api package (#80866)

* Add MFolderIDsAPICount metric to cound FolderIDs in api package

* Change counter to counter vector with method names as string values

pkg/api/folder_permission.go

@@ -8,6 +8,7 @@ import (
 	"github.com/grafana/grafana/pkg/api/apierrors"
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/api/response"
+	"github.com/grafana/grafana/pkg/infra/metrics"
 	"github.com/grafana/grafana/pkg/services/auth/identity"
 	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
 	"github.com/grafana/grafana/pkg/services/dashboards"
@@ -45,7 +46,7 @@ func (hs *HTTPServer) GetFolderPermissionList(c *contextmodel.ReqContext) respon
 		if perm.UserID > 0 && dtos.IsHiddenUser(perm.UserLogin, c.SignedInUser, hs.Cfg) {
 			continue
 		}
-
+		metrics.MFolderIDsAPICount.WithLabelValues(metrics.GetFolderPermissionList).Inc()
 		// nolint:staticcheck
 		perm.FolderID = folder.ID
 		perm.DashboardID = 0
@@ -103,6 +104,7 @@ func (hs *HTTPServer) UpdateFolderPermissions(c *contextmodel.ReqContext) respon
 			Created:     time.Now(),
 			Updated:     time.Now(),
 		})
+		metrics.MFolderIDsAPICount.WithLabelValues(metrics.UpdateFolderPermissions).Inc()
 	}
 
 	acl, err := hs.getFolderACL(c.Req.Context(), c.SignedInUser, folder)
@@ -166,6 +168,7 @@ func (hs *HTTPServer) getFolderACL(ctx context.Context, user identity.Requester,
 			IsFolder:       true,
 			Inherited:      false,
 		})
+		metrics.MFolderIDsAPICount.WithLabelValues(metrics.GetFolderPermissionList).Inc()
 	}
 
 	return acl, nil