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@bloomreach/ng-sdk

v23.4.4

Published

Bloomreach SPA SDK for Angular

Downloads

2,777

Readme

Bloomreach Angular SDK

Bloomreach Angular SDK provides simplified headless integration with Bloomreach Content for Angular-based applications. This library interacts with the Page Model API and Bloomreach SPA SDK and exposes a simplified declarative Angular interface over the Page Model.

Features

  • Bloomreach Page Angular component;
  • Bloomreach Component Angular directive;
  • Manage Content Button;
  • Manage Menu Button;
  • TransferState support;
  • Angular Universal support.

Get Started

Installation

To get the SDK into your project with NPM:

npm install @bloomreach/ng-sdk

And with Yarn:

yarn add @bloomreach/ng-sdk

Usage

The following code snippets render a simple page with a Banner component.

src/app/app.module.ts

In the NgModule metadata, it needs to import BrSdkModule

import { BrowserModule } from "@angular/platform-browser";
import { NgModule } from "@angular/core";
import { BrSdkModule } from "@bloomreach/ng-sdk";

import { AppComponent } from "./app.component";
import { BannerComponent } from "./banner/banner.component";

@NgModule({
  bootstrap: [AppComponent],
  declarations: [AppComponent, BannerComponent],
  imports: [BrowserModule, BrSdkModule],
})
export class AppModule {}

src/app/app.component.ts

In the app-root component, it needs to pass the configuration and brXM components mapping into the br-page component inputs.

import { Component } from "@angular/core";
import { Location } from "@angular/common";
import { Configuration } from "@bloomreach/spa-sdk";

import { BannerComponent } from "./banner/banner.component";

@Component({
  selector: "app-root",
  template: `
    <br-page [configuration]="configuration" [mapping]="mapping">
      <!-- note that wrapping the <br-page> child template with a <ng-template> is required -->
      <ng-template let-page="page">
        <header>
          <a [href]="page.getUrl('/')">Home</a>
          <ng-container brComponent="menu"></ng-container>
        </header>
        <section>
          <ng-container brComponent="main"></ng-container>
        </section>
        <footer>
          <ng-container brComponent="footer"></ng-container>
        </footer>
      </ng-template>
    </br-page>
  `,
})
export class AppComponent {
  configuration: Configuration;

  mapping = {
    Banner: BannerComponent,
  };

  constructor(location: Location) {
    this.configuration = {
      /* ... */
    };
  }
}

src/app/banner/banner.component.ts

Finally, in the app-banner component, it can consume the component data via the component input.

import { Component, Input } from "@angular/core";
import { Component as BrComponent } from "@bloomreach/spa-sdk";

@Component({
  selector: "app-banner",
  template: "Banner: {{ component.getName() }}",
})
export class BannerComponent {
  @Input() component!: BrComponent;
}

Non-blocking render mode (NBRMode)

Non-blocking rendering mode can be used to decrease the time for your application to load fully on the client side. By default the NBRMode configuration is false to avoid breaking existing setups. Setting it to true will enable non-blocking render mode. When the mode is active the children of the BrPage component will start mounting while the Page Model is being fetched. These children might contain logic themselves that queries some external API and using non-blocking render mode would allow this to be executed in parallel to requesting the Page Model.

@Component({
  selector: 'my-component',
  template: '<div>Hello</div>',
})
class MyComponent implements OnInit {
  async ngOnInit(): Promise<void> {
    // This will run in parallel to fetching the PageModel from the Delivery API
    const data = await fetch('https://yourapi.com');
  }
}

@Component({
  selector: "app-root",
  template: `
    <br-page [configuration]="configuration" [mapping]="mapping">
      <!-- note that wrapping the <br-page> child template with a <ng-template> is required -->
      <ng-template let-page="page">
        <my-component>
      </ng-template>
    </br-page>
  `,
})
export class AppComponent {
  configuration: Configuration;
  mapping = { ... };

  constructor(location: Location) {
    this.configuration = {
      /* ... */
      NBRMode: true,
    };
  }
}

Configuration

The br-page component supports several options you may use to customize page initialization. These options will be passed to the initialize function from @bloomreach/spa-sdk. See here for the full configuration documentation in the SPA SDK Typedocs.

Mapping

The br-page component provides a way to link Angular components with the brXM ones. It requires to pass the mapping property that maps the component type with its representation.

The Container Items can be mapped by their labels.

import { NewsListComponent } from "./news-list/news-list.component";

export class AppComponent {
  mapping = {
    "News List": NewsListComponent,
  };
}

The Containers can be only mapped by their type, so you need to use constants from @bloomreach/spa-sdk. By default, the Angular SDK provides an implementation for all the container types as it is defined in the documentation.

import { TYPE_CONTAINER_INLINE } from "@bloomreach/spa-sdk";
import { InlineContainerComponent } from "./inline-container/inline-container.component";

export class AppComponent {
  mapping = {
    [TYPE_CONTAINER_INLINE]: InlineContainerComponent,
  };
}

From within the Container component, the Container Items can be accessed via the getChildren method. This can be used to reorder or wrap child elements.

import { Component, Input } from '@angular/core';
import { Component as BrComponent } from '@bloomreach/spa-sdk';

@Component({
  selector: 'app-inline-container',
  template: `
    <div>
      @for (child of component.getChildren(); track $index){
        <span>
          <ng-container [brComponent]="child"></ng-container>
        </span>
      }
    </div>
  `,
})
export class InlineContainerComponent() {
  @Input() component!: BrComponent;
}

The Components can be mapped by their names. It is useful for a menu component mapping.

import { MenuComponent } from "./menu/menu.component";

export class AppComponent {
  mapping = {
    menu: MenuComponent,
  };
}

By default, container items that are not mapped will be rendered as a warning text. There is an option to override the fallback.

import { TYPE_CONTAINER_ITEM_UNDEFINED } from "@bloomreach/spa-sdk";
import { FallbackComponent } from "./fallback/fallback.component";

export class AppComponent {
  mapping = {
    [TYPE_CONTAINER_ITEM_UNDEFINED]: FallbackComponent,
  };
}

Inline Mapping

There is also another way to render a component. In case you need to show a static component or a component from the abstract page, you can use inline component mapping.

@Component({
  selector: "app-root",
  template: `
    <br-page>
      <ng-template>
        <app-menu *brComponent="'menu'; let component" [component]="component">
        </app-menu>
      </ng-template>
    </br-page>
  `,
})
export class AppComponent {}

In a brXM component, it is also possible to point where the component's children are going to be placed.

@Component({
  selector: "app-footer",
  template: `
    <div>
      @copy; Bloomreach
      <ng-container brComponent></ng-container>
    </div>
  `,
})
export class FooterComponent {}

The component data in case of inline mapping can be accessed via the template context.

@Component({
  selector: "app-root",
  template: `
    <br-page>
      <ng-template>
        <ul *brComponent="'menu'; let component; let page = page">
          <li><a [href]="page.getUrl('/')">Home</a></li>
          @for (item of component.getModels(); track $index){
            <li>...</li>
          }
        </ul>
      </ng-template>
    </br-page>
  `,
})
export class AppComponent {}

Buttons

It is recommended to add the css style position: relative to the Buttons so they will position correctly within their parent container component.

Manage menu button can be placed inside a menu component using brManageMenuButton directive.

import { Component, Input } from "@angular/core";
import {
  Component as BrComponent,
  Menu,
  Page,
  Reference,
} from "@bloomreach/spa-sdk";

interface MenuModels {
  menu: Reference;
}

@Component({
  selector: "app-menu",
  template: `
    <ul [ngClass]="{ 'has-edit-button': page.isPreview() }">
      <!-- ... -->

      <ng-container [brManageMenuButton]="menu"></ng-container>
    </ul>
  `,
})
export class MenuComponent {
  @Input() component!: BrComponent;
  @Input() page!: Page;

  get menu() {
    const { menu } = this.component.getModels<MenuModels>();

    return menu && this.page.getContent<Menu>(menu);
  }
}

Manage content button can be placed inside a component using brManageContentButton directive with non-empty input.

import { Component, Input } from "@angular/core";
import {
  Component as BrComponent,
  Document,
  Page,
  Reference,
} from "@bloomreach/spa-sdk";

interface BannerModels {
  document: Reference;
}

@Component({
  selector: "app-banner",
  template: `
    <div [ngClass]="{ 'has-edit-button': page.isPreview() }">
      <!-- ... -->

      <ng-container
        [brManageContentButton]="document"
        documentTemplateQuery="new-banner-document"
        folderTemplateQuery="new-banner-folder"
        parameter="document"
        root="banners"
        [relative]="true"
      >
      </ng-container>
    </div>
  `,
})
export class BannerComponent {
  @Input() component!: BrComponent;
  @Input() page!: Page;

  get document() {
    const { document } = this.component.getModels<BannerModels>();

    return document && this.page.getContent<Document>(document);
  }
}

Add new content button can be placed inside a component using brManageContentButton directive but without passing a content entity.

import { Component } from "@angular/core";

@Component({
  selector: "app-news",
  template: `
    <div [ngClass]="{ 'has-edit-button': page.isPreview() }">
      <!-- ... -->

      <ng-container
        [brManageContentButton]
        documentTemplateQuery="new-news-document"
        folderTemplateQuery="new-news-folder"
        root="news"
      >
      </ng-container>
    </div>
  `,
})
export class NewsComponent {
  @Input() component!: BrComponent;
  @Input() page!: Page;

  // ...
}

State Transfering

The br-page component supports TransferState without any extra configuration. To use it in Angular Universal applications, import ServerTransferStateModule on the server and BrowserTransferStateModule on the client. If you would like to disable the feature, just pass false into the stateKey input. (this input works with angular universal and angular version < 17)

<br-page [stateKey]="false"></br-page>


### Http error handling

The event handler is triggered when an HTTP error occurs from fetching PMA.

```typescript
import { Component } from "@angular/core";
import { BrPageComponent } from "@bloomreach/ng-sdk";

@Component({
  selector: "app-root",
  template: `
    <br-page [configuration]="configuration" (httpError)="onHttpError($event)">
      ...
    </br-page>
  `,
})
export class AppComponent {
  onHttpError(error: HttpErrorResponse): void {
    // http error handler
  }

  // ...
}

License

Published under Apache 2.0 license.

Reference

The Angular SDK is using Bloomreach SPA SDK to interact with Bloomreach Content.

br-page

This is the entry point to the page model. This component requests and initializes the page model, and then renders the page root component recursively.

| Type | Property | Required | Description | | ------ | --------------- | :------: | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | input | configuration | yes | The configuration of the SPA SDK. | | input | mapping | yes | The brXM and Angular components mapping. | | input | page | no | Preinitialized page instance or prefetched page model. Mostly that should be used to transfer state from the server-side to the client-side. | | input | stateKey | no | The TransferState key is used to transfer the state from the server-side to the client-side. By default, it equals to brPage. If false is passed then the state transferring feature will be disabled.(note that in angular >= 17 this property is deprecated and you will use built-in angular ssr instead) | | output | state | no | The current state of the page component. | | output | httpError | no | The event handler that processes HTTP error events from fetching PMA. |

This component also supports a template transclusion. <ng-template> from the component contents will be rendered in the root component context.

| Variable | Description | | ------------- | -------------------------- | | $implicit | The root component. | | component | The root component. | | page | The current page instance. |

brComponent

This directive points to where children or some component should be placed. brComponent can be used inside br-page or mapped components only. If it is being used as a structural directive, then the template will be rendered in the context of every matched component. Otherwise, it will try to render all children components recursively.

| Property | Required | Description | | ------------- | :------: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | brComponent | no | The component instance or a path to a component. The path is defined as a slash-separated components name chain relative to the current component (e.g. main/container). If it is omitted, all the children will be rendered. |

The template context holds references to the current component and the current page instance.

| Variable | Description | | ------------- | -------------------------- | | $implicit | The current component. | | component | The current component. | | page | The current page instance. |

brManageContentButton

This directive places a button on the page that opens the linked content in the document editor or opens a document editor to create a new one. The button will only be shown in preview mode.

| Property | Required | Description | | --------------------------- | :------: | ----------------------------------------------------------------------------------------------- | | brManageContentButton | no | The content entity to open for editing. | | documentTemplateQuery | no | Template query to use for creating new documents. For Content SaaS, the key is like new-banner-document for banner document type. In case the document type is in a namespace other than brxsaas, the key also includes namespace prefix, such as new-vuestorefront-accordion-document for accordion document type in vuestorefront namespace. | | folderTemplateQuery | no | Template query to use in case folders specified by path do not yet exist and must be created. For Content SaaS, the key is like new-banner-folder for banner document type. In case the document type is in a namespace other than brxsaas, the key also includes namespace prefix, such as new-vuestorefront-accordion-folder for accordion document type in vuestorefront namespace. | | path | no | Initial location of a new document, relative to the root. | | parameter | no | Name of the component parameter in which the document path is stored. | | pickerConfiguration | no | The root path of the CMS configuration to use for the picker, relative to /hippo:configuration/hippo:frontend/cms. | | pickerEnableUpload | no | When this picker is used for images, this flag determines if uploads are enabled. | | pickerInitialPath | no | The initial path to use in the picker if nothing has been selected yet, relative to the pickerRootPath. | | pickerRemembersLastVisited| no | Whether the picker remembers the last visited path. | | pickerRootPath | no | The absolute root path to use in the picker, or an empty string if the channel content path is used. | | pickerSelectableNodeTypes | no | Types of nodes to be able to select in the picker, separated by a comma. | | relative | no | Flag indicating that the picked value should be stored as a relative path. | | root | no | Path to the root folder of selectable document locations. |

brManageMenuButton

This directive places a button on the page that opens the linked menu in the menu editor. The button will only be shown in preview mode.

| Property | Required | Description | | ----------------------- | :------: | ----------------------- | | brManageContentButton | yes | The related menu model. |