market-backOfficce/src/app/app.routes.ts

import { Routes } from '@angular/router';
import { ProjectsDashboardComponent } from './pages/projects-dashboard/projects-dashboard.component';
import { ProjectViewComponent } from './pages/project-view/project-view.component';
import { CategoryEditorComponent } from './pages/category-editor/category-editor.component';
import { SubcategoryEditorComponent } from './pages/subcategory-editor/subcategory-editor.component';
import { ItemsListComponent } from './pages/items-list/items-list.component';
import { ItemEditorComponent } from './pages/item-editor/item-editor.component';
import { ItemPreviewComponent } from './pages/item-preview/item-preview.component';

export const routes: Routes = [
  {
    path: '',
    component: ProjectsDashboardComponent
  },
  {
    path: 'project/:projectId',
    component: ProjectViewComponent,
    children: [
      {
        path: 'category/:categoryId',
        component: CategoryEditorComponent
      },
      {
        path: 'subcategory/:subcategoryId',
        component: SubcategoryEditorComponent
      },
      {
        path: 'items/:subcategoryId',
        component: ItemsListComponent
      },
      {
        path: 'item/:itemId',
        component: ItemEditorComponent
      },
      {
        path: 'item/:itemId/preview',
        component: ItemPreviewComponent
      }
    ]
  },
  {
    path: 'category/:categoryId',
    component: CategoryEditorComponent
  },
  {
    path: 'subcategory/:subcategoryId',
    component: SubcategoryEditorComponent
  },
  {
    path: 'items/:subcategoryId',
    component: ItemsListComponent
  },
  {
    path: 'item/:itemId',
    component: ItemEditorComponent
  }
];