Umbraco & Astro

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Umbraco CMS is an open-source ASP.NET Core CMS. By default, Umbraco uses Razor pages for its front-end, but can be used as a headless CMS.

Integrating with Astro

In this section you will use Umbraco’s native Content Delivery API to provide content to your Astro project.

Prerequisites

To get started, you will need to have the following:

An Astro project - If you don’t have an Astro project yet, our Installation guide will get you up and running in no time.
An Umbraco (v12+) project - If you don’t have an Umbraco project yet, please see this Installation guide.

Setting up the Content Delivery API

To enable the Content Delivery API, update your Umbraco project’s appsettings.json file:

{
  "Umbraco": {
    "CMS": {
      "DeliveryApi": {
        "Enabled": true,
        "PublicAccess": true
      }
    }
  }
}

You can configure additional options as needed such as public access, API keys, allowed content types, membership authorisation, and more. See the Umbraco Content Delivery API documentation for more information.

Fetching Data

Use a fetch() call to the Content Delivery API to access your content and make it available to your Astro components.

The following example displays a list of fetched articles, including properties such as the article date and content.

---
const res = await fetch('http://localhost/umbraco/delivery/api/v2/content?filter=contentType:article');
const articles = await res.json();
---
<h1>Astro + Umbraco 🚀</h1>
{
  articles.items.map((article) => (
      <h1>{article.name}</h1>
      <p>{article.properties.articleDate}</p>
      <div set:html={article.properties.content?.markup}></div>
  ))
}

Building a blog with Umbraco and Astro

Prerequisites

An Astro project - If you don’t have an Astro project yet, our Installation guide will get you up and running in no time.
An Umbraco project (v12+) with the Content Delivery API enabled - Follow this Installation guide to create a new project.

Creating blog posts in Umbraco

From the Umbraco backoffice, create a Document Type for a simple blog article called ‘Article’.

Configure your ‘Article’ Document Type with the following properties:
- Title (DataType: Textstring)
- Article Date (DataType: Date Picker)
- Content (DataType: Richtext Editor)
Toggle “Allow as root” to true on the ‘Article’ document type.
From the “Content” section in the Umbraco backoffice, create and publish your first blog post. Repeat the process as many times as you like.

For more information, watch a video guide on creating Document Types.

Displaying a list of blog posts in Astro

Create a src/layouts/ folder, then add a new file Layout.astro with the following code:

---
---
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>My Blog with Astro and Umbraco</title>
</head>
<body>
    <main>
        <slot />
    </main>
</body>
</html>

Your project should now contain the following files:

Foldersrc/
- Folderlayouts/
  - Layout.astro
- Folderpages/
  - index.astro

To create a list of blog posts, first fetch to call the Content Delivery API content endpoint and filter by contentType of ‘article’. The article objects will include the properties and content set in the CMS. You can then loop through the articles and display a each title with a link to its article.

Replace the default contents of index.astro with the following code:

---
import Layout from '../layouts/Layout.astro';
const res = await fetch('http://localhost/umbraco/delivery/api/v2/content?filter=contentType:article');
const articles = await res.json();
---
<Layout>
  <h2>Blog Articles</h2>
  {
        articles.items.map((article: any) => (
            <div>
                <h3>{article.properties.title}</h3>
                <p>{article.properties.articleDate}</p>
                <a href={article.route.path}>Read more</a>
            </div>
        ))
    }
</Layout>

Generating individual blog posts

Create the file [...slug].astro at the root of the /pages/ directory. This file will be used to generate the individual blog pages dynamically.

Note that the params property, which generates the URL path of the page, contains article.route.path from the API fetch. Similarly, the props property must include the entire article itself so that you can access all the information in your CMS entry.

Add the following code to [...slug].astro which will create your individual blog post pages:

---
import Layout from '../layouts/Layout.astro';

export async function getStaticPaths() {
    let data = await fetch("http://localhost/umbraco/delivery/api/v2/content?filter=contentType:article");
    let articles = await data.json();

    return articles.items.map((article: any) => ({
        params: { slug: article.route.path },
        props: { article: article },
    }));
}

const { article } = Astro.props;
---

<Layout>
  <h1>{article.properties.title}</h1>
  <p>{article.properties.articleDate}</p>
  <div set:html={article.properties.content?.markup}></div>
</Layout>

Your project should now contain the following files:

Foldersrc/
- Folderlayouts/
  - Layout.astro
- Folderpages/
  - index.astro
  - […slug].astro

With the dev server running, you should now be able to view your Umbraco-created content in your browser preview of your Astro project. Congratulations! 🚀

Publishing your site

To deploy your site visit our deployment guides and follow the instructions for your preferred hosting provider.

Local dev, HTTPS and self-signed SSL certificates

If you are using the Umbraco HTTPS endpoint locally, any fetch queries will result in fetch failed with code DEPTH_ZERO_SELF_SIGNED_CERT. This is because Node (upon which Astro is built) won’t accept self-signed certificates by default. To avoid this, use the Umbraco HTTP endpoint for local dev.

Alternatively, you can set NODE_TLS_REJECT_UNAUTHORIZED=0 in an env.development file and update astro.config.js as shown:

NODE_TLS_REJECT_UNAUTHORIZED=0

import { defineConfig } from 'astro/config';
import { loadEnv } from "vite";

const { NODE_TLS_REJECT_UNAUTHORIZED } = loadEnv(process.env.NODE_ENV, process.cwd(), "");
process.env.NODE_TLS_REJECT_UNAUTHORIZED = NODE_TLS_REJECT_UNAUTHORIZED;
// https://astro.build/config
export default defineConfig({});