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Payload CMS & Astro

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PayloadCMS is a headless open-source content management system that can be used to provide content for your Astro project.

Integrating with Astro

Prerequisites

  1. An Astro project - If you don’t have an Astro project yet, our Installation guide will get you up and running in no time.
  2. A MongoDB database - PayloadCMS will ask you for a MongoDB connection string when creating a new project. You can set one up locally or use MongoDBAtlas to host a database on the web for free.
  3. A PayloadCMS REST API - Create a PayloadCMS project and connect it to your MongoDB database during the setup.

Configuring Astro for your PayloadCMS collection

Your Payload project template will contain a file called Posts.ts in src/collections/. If you did not choose a template during installation that created a content collection for you, you can create a new Payload CMS Collection by adding this configuration file manually. The example below shows this file for a collection called posts that requires title, content, and slug fields:

src/collections/Posts.ts
import { CollectionConfig } from "payload/types";
const Posts: CollectionConfig = {
slug: "posts",
admin: {
useAsTitle: "title",
},
access: {
read: () => true,
},
fields: [
{
name: "title",
type: "text",
required: true,
},
{
name: "content",
type: "text",
required: true,
},
{
name: "slug",
type: "text",
required: true,
},
],
};
export default Posts;
  1. Import and add both Users (available in all PayloadCMS projects) and any other collections (e.g. Posts) to the available collections in the payload.config.ts file.

    src/payload.config.ts
    import { buildConfig } from "payload/config";
    import path from "path";
    import Users from "./collections/Users";
    import Posts from "./collections/Posts";
    export default buildConfig({
    serverURL: "http://localhost:4321",
    admin: {
    user: Users.slug,
    },
    collections: [Users, Posts],
    typescript: {
    outputFile: path.resolve(__dirname, "payload-types.ts"),
    },
    graphQL: {
    schemaOutputFile: path.resolve(__dirname, "generated-schema.graphql"),
    },
    });

    This will make a new collection called “Posts” appear in your PayloadCMS Dashboard next to the “Users” collection.

  2. Enter the “Posts” collection and create a new post. After saving it, you will notice the API URL appear in the bottom right corner.

  3. With the dev server running, open http://localhost:4321/api/posts in your browser. You should see a JSON file containing the post you have created as an object.

    {
    "docs":[
    {
    "id":"64098b16483b0f06a7e20ed4",
    "title":"Astro & PayloadCMS Title 🚀",
    "content":"Astro & PayloadCMS Content",
    "slug":"astro-payloadcms-slug",
    "createdAt":"2023-03-09T07:30:30.837Z",
    "updatedAt":"2023-03-09T07:30:30.837Z"
    }
    ],
    "totalDocs":1,
    "limit":10,
    "totalPages":1,
    "page":1,
    "pagingCounter":1,
    "hasPrevPage":false,
    "hasNextPage":false,
    "prevPage":null,
    "nextPage":null
    }

Fetching Data

Fetch your PayloadCMS data through your site’s unique REST API URL and the route for your content. (By default, PayloadCMS will mount all routes through /api.) Then, you can render your data properties using Astro’s set:html="" directive.

Together with your post, PayloadCMS will return some top-level metadata. The actual documents are nested within the docs array.

For example, to display a list of post titles and their content:

src/pages/index.astro
---
import HomeLayout from "../layouts/HomeLayout.astro";
const res = await fetch("http://localhost:5000/api/posts") // http://localhost:4321/api/posts by default
const posts = await res.json()
---
<HomeLayout title='Astro Blog'>
{
posts.docs.map((post) => (
<h2 set:html={post.title} />
<p set:html={post.content} />
))
}
</HomeLayout>

Building a blog with PayloadCMS and Astro

Create a blog index page src/pages/index.astro to list each of your posts with a link to its own page.

Fetching via the API returns an array of objects (posts) that include, among others, the following properties:

  • title
  • content
  • slug
src/pages/index.astro
---
import HomeLayout from "../layouts/HomeLayout.astro";
const res = await fetch("http://localhost:5000/api/posts") // http://localhost:4321/api/posts by default
const posts = await res.json()
---
<HomeLayout title='Astro Blog'>
<h1>Astro + PayloadCMS 🚀</h1>
<h2>Blog posts list:</h2>
<ul>
{
posts.docs.map((post) =>(
<li>
<a href={`posts/${post.slug}`} set:html={post.title} />
</li>
))
}
</ul>
</HomeLayout>

Using the PayloadCMS API to generate pages

Create a page src/pages/posts/[slug].astro to dynamically generate a page for each post.

src/pages/posts/[slug].astro
---
import PostLayout from "../../layouts/PostLayout.astro"
const {title, content} = Astro.props
// The getStaticPaths() is required for static Astro sites.
// If using SSR, you will not need this function.
export async function getStaticPaths() {
let data = await fetch("http://localhost:5000/api/posts")
let posts = await data.json()
return posts.docs.map((post) => {
return {
params: {slug: post.slug},
props: {title: post.title, content: post.content},
};
});
}
---
<PostLayout title={title}>
<article>
<h1 set:html={title} />
<p set:html={content} />
</article>
</PostLayout>

Publishing your site

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

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