How to customize the backend console

All of your custom files must be in the custom_files directory. For demo purposes, there are several sample customizations already implemented.

Your custom files need to follow the naming convention of the files in the app - directory. For example - if you want to add customization to the main-view component, your custom file must be with the same name - main-view.js, located in the custom_files directory.

Go through the article below, as well as through the respective files, to start implementing your changes with ease.

How to add a custom window

  • In your custom main-view.js file, extend the main-view component from the ../app/components/main-view/ directory.

  • In your custom entity-window.js file extend the entity-window component from the '../app/components/entity-window/ directory.

  • Add the visualization you want to appear in your custom window. The custom window, created for demo purposes, is the Admin dashboard. It is located at ../custom_files/custom-windows/. The admin-dashboard component is imported in the custom entity-window.js.

Nemesis Backend Console Admin dashboard
Figure 1. admin-dashboard
  • In your custom navigation-tree.js file, extend the navigation-tree component from the ../app/components/navigation-tree/ directory. As shown below, within the populateNavigationData() function you specify the texts you want to be visualized in the navigation tree:

populateNavigationData() {
    this.getNavigationData().then(result => {
      let data =;
        id: 'AdminDashboard',
        text: 'Admin',
        children: [{id: 'AdminDashboard', text:'Admin dashboard', leaf: true}]
      this.setState({...this.state, treeData: data, filteredData: data});
Nemesis Backend Console Custom Navigation Tree items
Figure 2. custom navigation-tree

How to add a filter

  • In your custom entities-filter.js file extend the entities-filter component from the ../app/components/entity-window/entities-viewer/entities-filter/ directory. All of the filters you define need to be imported in your custom entities-filter.js as well. There are 4 filters, created for demo purposes - custom filter, batch filter, product filter and transaction filter. All of them are in the ../custom_files/filters/ directory. Here is added the logic for filtration - when exactly your custom filter to be applied:

getFilters() {
    let filters = super.getFilters();
    if (this.props.entity.entityId === 'category') {
      filters.push({filterName: 'Custom filter', filterClass: CustomFilter});

    if (this.props.entity.entityId === 'batch_step_execution') {
      filters.push({filterName: 'Batch filter', filterClass: BatchFilter});

    if (this.props.entity.entityId === 'payment_transaction') {
      filters.push({filterName: 'Transaction filter', filterClass: TransactionFilter});

    if (this.props.entity.entityId === 'product') {
      filters.push({filterName: 'Active product filter', filterClass: ProductFilter});

    return filters;

In the above example the filtering condition is the entityId.

  • Create your custom filters. The filters, created for demo purposes:

    • Active product filter

Nemesis Backend Console Active product filter
Figure 3. active-product-filter
  • Batch filter

Nemesis Backend Console Batch filter
Figure 4. batch-filter
  • Transaction filter

Nemesis Backend Console Transaction filter
Figure 5. transaction-filter
  • Category filter

Nemesis Backend Console Category filter
Figure 6. new-custom-filter

How to add a custom viewer

  • In your custom entities-result-viewer.js file extend the entities-result-viewer component from the ../app/components/entity-window/entities-viewer/entities-result-viewer/ directory. Your custom viewer component (card-viewer.js in the example) needs to be imported in the custom entities-result-viewer.js. Here is added the logic for filtration - when exactly your custom viewer to be applied:

export default class CustomViewers extends EntitiesResultViewer {
  constructor(props) {

  getViewers() {
    let viewers = super.getViewers();
    if (this.props.entity.entityId === 'category') {
      viewers.push({viewerName: 'Card Viewer', viewerClass: CardViewer});

    return viewers;

In the above example the filtering condition is the entityId.

  • Create your custom viewer. The custom viewer, created for demo purposes, is the card-viewer.js. It is in the ../custom_files/viewers/ directory.

Nemesis Backend Console Card Viewer
Figure 7. card-viewer

How to add custom validation

In your custom nemesis-localized-text-field.js extend the nemesis-localized-text-field component from the ../app/components/field-components/nemesis-localized-text-field/ directory. Then add your custom validation logic.

Nemesis Backend Console Custom Validation
Figure 8. nemesis-localized-text-field

In the above example, the custom validation is applied to the category’s Name field and the custom error message is displayed when the validating condition is not met.

How to add a new button to the entity-sections component

In your custom entity-sections.js file extend the entity-sections component from the ../app/components/entity-window/entity-sections/ directory and add your custom logic:

export default class CustomEntitySections extends EntitySections {
  constructor(props) {

  getFunctionalButtons(entity) {
    //get base array of buttons
    let buttons = super.getFunctionalButtons(entity);

    // if entity name is "category" add custom button
    if (entity.entityName === 'category') {
      buttons.push({label: 'Open google', onClickFunction: () => this.handleOpenGoogleButton()})

    return buttons;

  //custom function for new button
  handleOpenGoogleButton() {'');
Nemesis Backend Console Custom Button
Figure 9. custom-button

How to change the visualization of a field-component

The information, displayed on a field-component’s selection may also be customized. The demo example shows you how to alter the visualization of a nemesis-entity-collection-field. You may use similar approach for applying different customizations to the defined in the field-components directory components.

In your custom nemesis-entity-collection-field.js file extend the nemesis-entity-collection-field component from the ../app/components/field-components/nemesis-collection-field/nemesis-entity-collection-field/ directory and add your custom logic. In our example, the default chip view for the slots' visualization is overridden, so that the slots' information is displayed in a 3-column-table:

getItemsRender() {

    if (this.props.entityId === 'cms_slot') {
      if (!this.state.value || this.state.value.length === 0) {
        return <div>No Records</div>
      } else {
        return (
            <table className="table table-striped">
          // data-population logic
    } else {
      return super.getItemsRender();
Nemesis Backend Console Entity Collection Field
Figure 10. nemesis-entity-collection-field