Files
payloadcms/examples/hierarchy
Jacob Fletcher c96fa613bc feat!: on demand rsc (#8364)
Currently, Payload renders all custom components on initial compile of
the admin panel. This is problematic for two key reasons:
1. Custom components do not receive contextual data, i.e. fields do not
receive their field data, edit views do not receive their document data,
etc.
2. Components are unnecessarily rendered before they are used

This was initially required to support React Server Components within
the Payload Admin Panel for two key reasons:
1. Fields can be dynamically rendered within arrays, blocks, etc.
2. Documents can be recursively rendered within a "drawer" UI, i.e.
relationship fields
3. Payload supports server/client component composition 

In order to achieve this, components need to be rendered on the server
and passed as "slots" to the client. Currently, the pattern for this is
to render custom server components in the "client config". Then when a
view or field is needed to be rendered, we first check the client config
for a "pre-rendered" component, otherwise render our client-side
fallback component.

But for the reasons listed above, this pattern doesn't exactly make
custom server components very useful within the Payload Admin Panel,
which is where this PR comes in. Now, instead of pre-rendering all
components on initial compile, we're able to render custom components
_on demand_, only as they are needed.

To achieve this, we've established [this
pattern](https://github.com/payloadcms/payload/pull/8481) of React
Server Functions in the Payload Admin Panel. With Server Functions, we
can iterate the Payload Config and return JSX through React's
`text/x-component` content-type. This means we're able to pass
contextual props to custom components, such as data for fields and
views.

## Breaking Changes

1. Add the following to your root layout file, typically located at
`(app)/(payload)/layout.tsx`:

    ```diff
    /* THIS FILE WAS GENERATED AUTOMATICALLY BY PAYLOAD. */
    /* DO NOT MODIFY IT BECAUSE IT COULD BE REWRITTEN AT ANY TIME. */
    + import type { ServerFunctionClient } from 'payload'

    import config from '@payload-config'
    import { RootLayout } from '@payloadcms/next/layouts'
    import { handleServerFunctions } from '@payloadcms/next/utilities'
    import React from 'react'

    import { importMap } from './admin/importMap.js'
    import './custom.scss'

    type Args = {
      children: React.ReactNode
    }

+ const serverFunctions: ServerFunctionClient = async function (args) {
    +  'use server'
    +  return handleServerFunctions({
    +    ...args,
    +    config,
    +    importMap,
    +  })
    + }

    const Layout = ({ children }: Args) => (
      <RootLayout
        config={config}
        importMap={importMap}
    +  serverFunctions={serverFunctions}
      >
        {children}
      </RootLayout>
    )

    export default Layout
    ```

2. If you were previously posting to the `/api/form-state` endpoint, it
no longer exists. Instead, you'll need to invoke the `form-state` Server
Function, which can be done through the _new_ `getFormState` utility:

    ```diff
    - import { getFormState } from '@payloadcms/ui'
    - const { state } = await getFormState({
    -   apiRoute: '',
    -   body: {
    -     // ...
    -   },
    -   serverURL: ''
    - })

    + const { getFormState } = useServerFunctions()
    +
    + const { state } = await getFormState({
    +   // ...
    + })
    ```

## Breaking Changes

```diff
- useFieldProps()
- useCellProps()
```

More details coming soon.

---------

Co-authored-by: Alessio Gravili <alessio@gravili.de>
Co-authored-by: Jarrod Flesch <jarrodmflesch@gmail.com>
Co-authored-by: James <james@trbl.design>
2024-11-11 13:59:05 -05:00
..
2024-11-11 13:59:05 -05:00

Payload Blank Template

A blank template for Payload to help you get up and running quickly. This repo may have been created by running npx create-payload-app@latest and selecting the "blank" template or by cloning this template on Payload Cloud.

See the official Examples Directory for details on how to use Payload in a variety of different ways.

Development

To spin up the project locally, follow these steps:

  1. First clone the repo
  2. Then cd YOUR_PROJECT_REPO && cp .env.example .env
  3. Next yarn && yarn dev (or docker-compose up, see Docker)
  4. Now open http://localhost:3000/admin to access the admin panel
  5. Create your first admin user using the form on the page

That's it! Changes made in ./src will be reflected in your app.

Docker

Alternatively, you can use Docker to spin up this project locally. To do so, follow these steps:

  1. Follow steps 1 and 2 from above, the docker-compose file will automatically use the .env file in your project root
  2. Next run docker-compose up
  3. Follow steps 4 and 5 from above to login and create your first admin user

That's it! The Docker instance will help you get up and running quickly while also standardizing the development environment across your teams.

Production

To run Payload in production, you need to build and serve the Admin panel. To do so, follow these steps:

  1. First invoke the payload build script by running yarn build or npm run build in your project root. This creates a ./build directory with a production-ready admin bundle.
  2. Then run yarn serve or npm run serve to run Node in production and serve Payload from the ./build directory.

Deployment

The easiest way to deploy your project is to use Payload Cloud, a one-click hosting solution to deploy production-ready instances of your Payload apps directly from your GitHub repo. You can also deploy your app manually, check out the deployment documentation for full details.

Questions

If you have any issues or questions, reach out to us on Discord or start a GitHub discussion.