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Getting Started with Directus and Angular

Published April 18th, 2024

Written By
David Mbochi
David Mbochi
Guest Author

Angular is a popular front-end web framework. In this tutorial, you will use the framework to implement the front-end for the Directus headless CMS. You will implement a blog that loads blog posts dynamically and also serves global metadata.

Before You Start

  • Some knowledge of TypeScript and Angular
  • A Directus project. Follow the Quickstart guide to create one.
  • Node.js and a development environment of your choice
  • Install the Angular CLI - use the Angular guide to achieve this.

Compatibility

Note that Angular and TypeScript versions must be compatible. Since the SDK requires a minimum TypeScript version of 5.0, you need to use Angular version 17 for your project.

Initialize Project

To create a new Angular project, use the following command.

bash
ng new directus-with-angular
? Which stylesheet format would you like to use? CSS
? Do you want to enable Server-Side Rendering (SSR) and Static Site Generation (SSG/Prerendering)? (y/N) No
ng new directus-with-angular
? Which stylesheet format would you like to use? CSS
? Do you want to enable Server-Side Rendering (SSR) and Static Site Generation (SSG/Prerendering)? (y/N) No

Next, run the following command to install the Directus SDK:

bash
npm install @directus/sdk
npm install @directus/sdk

Once the project has been created, open it in your code editor and replace the code in the src/app/app.component.html file with the following:

html
<router-outlet/>
<router-outlet/>

Angular will dynamically fill the RouterOutlet placeholder based on the current router state.

You should also disable strict checking in ./tsconfig.json file under compilerOptions.

json
"strict": false
"strict": false

Navigate to your project directory in a terminal and start the development server at http://localhost:4200:

bash
ng serve
ng serve

Create an instance of Directus SDK

For every Directus model that you define, you need to create a TypeScript type for that model. The type will help to map the JSON data to TypeScript objects.

In addition, you should expose an instance of the Directus SDK that you will use to make different requests to the Directus CMS.

In your project, create a file named ./directus.ts with the following code:

ts
import {createDirectus, rest} from "@directus/sdk";

type Global = {
  slug: string;
  title: string;
  description: string;
}

type Author = {
  slug: string;
  name: string;
}

type Page = {
  slug: string;
  title: string;
  content: string;
}

type Post = {
  slug: string;
  image: string;
  title: string;
  content: string;
  author: Author;
  published_date: string;
}

type Schema = {
  global: Global;
  posts: Post[];
  pages: Page[];
}

const directus =
  createDirectus<Schema>("YOUR_DIRECTUS_URL")
    .with(rest());

export {directus, Global, Post, Page}
import {createDirectus, rest} from "@directus/sdk";

type Global = {
  slug: string;
  title: string;
  description: string;
}

type Author = {
  slug: string;
  name: string;
}

type Page = {
  slug: string;
  title: string;
  content: string;
}

type Post = {
  slug: string;
  image: string;
  title: string;
  content: string;
  author: Author;
  published_date: string;
}

type Schema = {
  global: Global;
  posts: Post[];
  pages: Page[];
}

const directus =
  createDirectus<Schema>("YOUR_DIRECTUS_URL")
    .with(rest());

export {directus, Global, Post, Page}

The Schema contains three types which match the data model we will create in Directus throughout this tutorial - each property being a field in the collection. As global is a singleton, we do not define it as an array in the Schema. If you add new fields, or rename them, they will also need updating in the type definitions.

Using Global Metadata and Settings

In your Directus project, go to Settings > Data Model and create a singleton collection named global with the Primary ID Field as a "Manually Entered String" called slug. Next, add the fields title and description.

To ensure the collection is a singleton, select the Singleton checkbox. This collection's fields match the Global type you created when defining the Schema for the Directus SDK.

Once the collection is defined go to the Content section and add the title and description for the metadata. Go to Settings > Access Control > Public and allow read permissions for the global collection.

Create a Component for the Global Metadata

Navigate to your project directory in a terminal and create a global component:

bash
ng g c component/global
ng g c component/global

This command will generate four files under the component directory.

Replace the code in the src/app/component/global/global.component.ts file with the following code:

ts
import {Component, OnInit} from '@angular/core';
import {directus, Global} from "../../../../directus";
import {CommonModule} from "@angular/common";
import {readSingleton} from "@directus/sdk";

@Component({
  selector: 'app-global',
  standalone: true,
  imports: [
    CommonModule
  ],
  templateUrl: './global.component.html',
  styleUrl: './global.component.css'
})
export class GlobalComponent implements OnInit{
  global: Global;
  ngOnInit(): void {
    this.getGlobal();
  }

  async getGlobal(){
    //@ts-ignore
    this.global = await directus
      .request<Global>(readSingleton("global"))
  }

}
import {Component, OnInit} from '@angular/core';
import {directus, Global} from "../../../../directus";
import {CommonModule} from "@angular/common";
import {readSingleton} from "@directus/sdk";

@Component({
  selector: 'app-global',
  standalone: true,
  imports: [
    CommonModule
  ],
  templateUrl: './global.component.html',
  styleUrl: './global.component.css'
})
export class GlobalComponent implements OnInit{
  global: Global;
  ngOnInit(): void {
    this.getGlobal();
  }

  async getGlobal(){
    //@ts-ignore
    this.global = await directus
      .request<Global>(readSingleton("global"))
  }

}

When this component is initialized, it will retrieve the singleton and store it in the global object.

To display the contents of the object, replace the code in the src/app/component/global/global.component.html file with the following code:

ts
<div *ngIf="global">
  <h1>{{global.title}}</h1>
  <p>{{global.description}}</p>
</div>
<div *ngIf="global">
  <h1>{{global.title}}</h1>
  <p>{{global.description}}</p>
</div>

Add Routing for the Global Metadata

In app.routes.ts replace the code in the file with the following code:

ts
import { Routes } from '@angular/router';
import {GlobalComponent} from "./component/global/global.component";

export const routes: Routes = [
  {path: '', component: GlobalComponent}
];
import { Routes } from '@angular/router';
import {GlobalComponent} from "./component/global/global.component";

export const routes: Routes = [
  {path: '', component: GlobalComponent}
];

Open the application in your browser (http://localhost:4200) and the global component containing the data from Directus will be shown.

Creating Pages with Directus

Configure Directus

In your Directus project, create a new collection named pages - make the Primary ID Field a "Manually Entered String" called slug, which will correlate with the URL for the page. For example, about will later correlate to the page localhost:4200/about.

Create a text input field called title and a text area input field called content. In the Access Control settings, give the Public role read access to the new collection.

Create some items in the new collection - here is some sample data.

Dynamic Routes in Angular

Navigate to your project directory in a terminal and generate the page component:

bash
ng g c component/page
ng g c component/page

Replace the code in the src/app/component/page/page.component.ts file with the following code:

ts
import {Component, OnInit} from '@angular/core';
import {directus, Page} from "../../../../directus";
import {ActivatedRoute} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItem} from "@directus/sdk";

@Component({
  selector: 'app-page',
  standalone: true,
  imports: [CommonModule],
  templateUrl: './page.component.html',
  styleUrl: './page.component.css'
})
export class PageComponent implements OnInit{
  page: Page;

  constructor(private route: ActivatedRoute) {
  }

  ngOnInit(): void {
    this.route.paramMap.subscribe(params => {
      const slug = params.get("slug");
      if (slug){
        this.getPageBySlug(slug);
      }
    })
  }

  async getPageBySlug(slug: string){
    //@ts-ignore
    this.page = await directus
      .request<Page>(readItem("pages", slug));
  }

}
import {Component, OnInit} from '@angular/core';
import {directus, Page} from "../../../../directus";
import {ActivatedRoute} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItem} from "@directus/sdk";

@Component({
  selector: 'app-page',
  standalone: true,
  imports: [CommonModule],
  templateUrl: './page.component.html',
  styleUrl: './page.component.css'
})
export class PageComponent implements OnInit{
  page: Page;

  constructor(private route: ActivatedRoute) {
  }

  ngOnInit(): void {
    this.route.paramMap.subscribe(params => {
      const slug = params.get("slug");
      if (slug){
        this.getPageBySlug(slug);
      }
    })
  }

  async getPageBySlug(slug: string){
    //@ts-ignore
    this.page = await directus
      .request<Page>(readItem("pages", slug));
  }

}

When the component is initialized, the slug path parameter is retrieved using ActivatedRoute and passed to the readItem() function to get a page with that slug.

The retrieved page is stored in the object named page. To display the contents of the page, replace the code in the src/app/component/page/page.component.html file with the following code:

html
<div *ngIf="page">
  <h1>{{page.title}}</h1>
  <p>{{page.content}}</p>
</div>
<div *ngIf="page">
  <h1>{{page.title}}</h1>
  <p>{{page.content}}</p>
</div>

Add Routing for the Pages

In src/app/app.routes.ts add the following route in the Routes array:

ts
{path: ':slug', component: PageComponent},
{path: ':slug', component: PageComponent},

Visit http://localhost:4200/about to view the about page. Replace the slug path parameter with privacy and conduct to view the content of about and conduct pages held in Directus.

Creating Blog Posts with Directus

In your Directus project, create a new collection called authors with a single text input field called name. Add some authors to the collection.

Next, create a new collection named posts - make the Primary ID Field a "Manually Entered String" called slug which will correlate with the URL for the page. For example, hello-world will later correlate to the page localhost:3000/blog/hello-world.

Create the following fields for the posts data model.

  • a text input field called title
  • an image relational field called image
  • a text area input field called content
  • a datetime selection field called published_date of type date.
  • a many-to-one relational field called author with the related collection set to authors

In Settings -> Access Control, give the Public role read access to the authors, posts, and directus_files collections.

Create some items in the posts collection - here's some sample data.

Create Blog Post Listing

Navigate to your project directory in a terminal and generate the posts component:

bash
ng g c component/posts
ng g c component/posts

Replace the code in the src/app/component/posts/posts.component.ts file with the following code:

ts
import {Component, OnInit} from '@angular/core';
import {directus, Post} from "../../../../directus";
import {RouterLink} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItems} from "@directus/sdk";

@Component({
  selector: 'app-posts',
  standalone: true,
  imports: [CommonModule, RouterLink],
  templateUrl: './posts.component.html',
  styleUrl: './posts.component.css'
})
export class PostsComponent implements OnInit{
  posts: Post[];

  ngOnInit(): void {
    this.getAllPosts();
  }

  async getAllPosts(){
    //@ts-ignore
    this.posts = await directus
      .request<Post[]>(readItems("posts", {
        fields: ["slug","title", "published_date", {author: ["name"]}]
      }))
  }
}
import {Component, OnInit} from '@angular/core';
import {directus, Post} from "../../../../directus";
import {RouterLink} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItems} from "@directus/sdk";

@Component({
  selector: 'app-posts',
  standalone: true,
  imports: [CommonModule, RouterLink],
  templateUrl: './posts.component.html',
  styleUrl: './posts.component.css'
})
export class PostsComponent implements OnInit{
  posts: Post[];

  ngOnInit(): void {
    this.getAllPosts();
  }

  async getAllPosts(){
    //@ts-ignore
    this.posts = await directus
      .request<Post[]>(readItems("posts", {
        fields: ["slug","title", "published_date", {author: ["name"]}]
      }))
  }
}

When the component is initialized, it will retrieve all the posts using the readItems() function and store them in the posts array.

To list the posts, replace the code in the src/app/component/posts/posts.component.html file with the following code:

html
<h1>Blog Posts</h1>
<ol>
  <li *ngFor="let post of posts">
    <a routerLink="#">
      <h2>{{post.title}}</h2>
    </a>
    <span>
      {{post.published_date}} &bull; {{post.author.name}}
    </span>
  </li>
</ol>
<h1>Blog Posts</h1>
<ol>
  <li *ngFor="let post of posts">
    <a routerLink="#">
      <h2>{{post.title}}</h2>
    </a>
    <span>
      {{post.published_date}} &bull; {{post.author.name}}
    </span>
  </li>
</ol>

Add Routing for Posts

Go to src/app/app.routes.ts file and add the following route in the Routes array:

ts
{path: 'blog', component: PostsComponent},
{path: 'blog', component: PostsComponent},

Once the application reloads, go to http://localhost:4200/blog and the list of posts will be displayed on the page.

Navigation

In Angular, the order in which you put the routes in the Routes array will affect how components are loaded in your application. In this case, you don't want the path to blog to be consumed as a slug. As a result, ensure the blog route is put before slug in the Routes array.

blog post listing

Create Blog Post Pages

You have learned how to create dynamic pages in a previous section, you will leverage the skill in this section to display individual post pages for the blog post listing.

Navigate to your project directory in a terminal and create the post component:

bash
ng g c component/post
ng g c component/post

Replace the code in the src/app/component/post/post.component.ts file with the following code.

ts
import {Component, OnInit} from '@angular/core';
import {directus, Post} from "../../../../directus";
import {ActivatedRoute} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItem} from "@directus/sdk";

@Component({
  selector: 'app-post',
  standalone: true,
  imports: [CommonModule],
  templateUrl: './post.component.html',
  styleUrl: './post.component.css'
})
export class PostComponent implements OnInit{
  post: Post;
  baseUrl = "YOUR_DIRECTUS_URL";
  constructor(private route: ActivatedRoute) {
  }
  ngOnInit(): void {
    this
      .getPostBySlug(+this
      .route
      .snapshot
      .paramMap.get('slug'))
  }

  async getPostBySlug(slug: string){
    //@ts-ignore
    this.post = await directus
      .request<Post>(readItem("posts", slug));
  }

}
import {Component, OnInit} from '@angular/core';
import {directus, Post} from "../../../../directus";
import {ActivatedRoute} from "@angular/router";
import {CommonModule} from "@angular/common";
import {readItem} from "@directus/sdk";

@Component({
  selector: 'app-post',
  standalone: true,
  imports: [CommonModule],
  templateUrl: './post.component.html',
  styleUrl: './post.component.css'
})
export class PostComponent implements OnInit{
  post: Post;
  baseUrl = "YOUR_DIRECTUS_URL";
  constructor(private route: ActivatedRoute) {
  }
  ngOnInit(): void {
    this
      .getPostBySlug(+this
      .route
      .snapshot
      .paramMap.get('slug'))
  }

  async getPostBySlug(slug: string){
    //@ts-ignore
    this.post = await directus
      .request<Post>(readItem("posts", slug));
  }

}

When the component is initialized, it will retrieve the path variable using the ActivatedRoute and pass it to the readItem() function to get the post with that slug.

Note that this will happen when you click on a blog post from the list of blog posts.

The retrieved post is stored in the post object. To display the contents of the object, replace the code in the src/app/component/post/post.component.html file with the following code:

html
<div *ngIf="post">
  <div style="width: 500px">
    <img style="width: 100%" [src]="baseUrl+'assets/'+post.image"
         alt="{{post.title}}">
  </div>
  <h2>{{post.title}}</h2>
  <p>{{post.content}}</p>
</div>
<div *ngIf="post">
  <div style="width: 500px">
    <img style="width: 100%" [src]="baseUrl+'assets/'+post.image"
         alt="{{post.title}}">
  </div>
  <h2>{{post.title}}</h2>
  <p>{{post.content}}</p>
</div>

Add a Method to Handle a Click on the Blog Posts

In src/app/component/posts/posts.component.ts file add the following code.

ts
constructor(private router: Router) {}

  goToPost(slug: string){
    this.router.navigate(['/blog', slug]);
  }
constructor(private router: Router) {}

  goToPost(slug: string){
    this.router.navigate(['/blog', slug]);
  }

This method will redirect you to /blog/slug using Route when you click on an post on the blog post listing. The slug path variable will be associated with the clicked item.

As a result, a post will be loaded dynamically depending on which post you click.

Add a Click Listener for the Blog Posts

In src/app/component/posts/posts.component.html add the method you have created in the previous section in the following line.

ts
<a routerLink="#" (click)="goToPost(post.slug)">
      <h2>{{post.title}}</h2>
</a>
<a routerLink="#" (click)="goToPost(post.slug)">
      <h2>{{post.title}}</h2>
</a>

Since the method expects the slug parameter, pass post.slug as the argument of the method. As a result, this will bind the method with the current slug of a post at runtime.

Add Routing for the Blog Post Page

In src/app/app.routes.ts file add the following route in the Routes array:

ts
{path: 'blog/:slug', component: PostComponent}
{path: 'blog/:slug', component: PostComponent}

Once the application reloads, go to http://localhost:4200/blog and click on a post. As a result, the individual post will be displayed on the page via the path http://localhost:4200/blog/slug.

blog post pages

Add Navigation

While not strictly Directus-related, there are now several pages that aren't linked to each other. Open src/app/app.component.html and add the following code before the <router-outlet/> tag:

html
<nav>
  <ul>
    <li><a routerLink="/">Home</a> </li>
    <li><a routerLink="/about">About</a> </li>
    <li><a routerLink="/conduct">Code of Conduct</a> </li>
    <li><a routerLink="/privacy">Privacy Policy</a> </li>
    <li><a routerLink="/blog">Blog</a> </li>
  </ul>
</nav>
<nav>
  <ul>
    <li><a routerLink="/">Home</a> </li>
    <li><a routerLink="/about">About</a> </li>
    <li><a routerLink="/conduct">Code of Conduct</a> </li>
    <li><a routerLink="/privacy">Privacy Policy</a> </li>
    <li><a routerLink="/blog">Blog</a> </li>
  </ul>
</nav>

Summary

In this tutorial, you have learned how to integrate directus with Angular. You have covered how to use global metadata and settings, how to create pages, how to create a post listing, how to show blog post pages, and lastly how to add navigation in your application.

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