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payloadcms/docs/fields/code.mdx
2024-07-09 18:10:04 -04:00

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---
title: Code Field
label: Code
order: 50
desc: The Code field type will store any string in the Database. Learn how to use Code fields, see examples and options.
keywords: code, fields, config, configuration, documentation, Content Management System, cms, headless, javascript, node, react, nextjs
---
<Banner>
The Code field type saves a string in the database, but provides the Admin Panel with a code
editor styled interface.
</Banner>
<LightDarkImage
srcLight="https://payloadcms.com/images/docs/fields/code.png"
srcDark="https://payloadcms.com/images/docs/fields/code-dark.png"
alt="Shows a Code field in the Payload admin panel"
caption="Admin Panel screenshot of a Code field"
/>
This field uses the `monaco-react` editor syntax highlighting.
## Config
| Option | Description |
| ---------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **`name`** \* | To be used as the property name when stored and retrieved from the database. [More](/docs/fields/overview#field-names) |
| **`label`** | Text used as a field label in the Admin Panel or an object with keys for each language. |
| **`unique`** | Enforce that each entry in the Collection has a unique value for this field. |
| **`index`** | Build an [index](/docs/database#overview) for this field to produce faster queries. Set this field to `true` if your users will perform queries on this field's data often. |
| **`minLength`** | Used by the default validation function to ensure values are of a minimum character length. |
| **`maxLength`** | Used by the default validation function to ensure values are of a maximum character length. |
| **`validate`** | Provide a custom validation function that will be executed on both the Admin Panel and the backend. [More](/docs/fields/overview#validation) |
| **`saveToJWT`** | If this field is top-level and nested in a config supporting [Authentication](/docs/authentication/config), include its data in the user JWT. |
| **`hooks`** | Provide field-based hooks to control logic for this field. [More](/docs/fields/overview#field-level-hooks) |
| **`access`** | Provide field-based access control to denote what users can see and do with this field's data. [More](/docs/fields/overview#field-level-access-control) |
| **`hidden`** | Restrict this field's visibility from all APIs entirely. Will still be saved to the database, but will not appear in any API or the Admin Panel. |
| **`defaultValue`** | Provide data to be used for this field's default value. [More](/docs/fields/overview#default-values) |
| **`localized`** | Enable localization for this field. Requires [localization to be enabled](/docs/configuration/localization) in the Base config. |
| **`required`** | Require this field to have a value. |
| **`admin`** | Admin-specific configuration. See below for [more detail](#admin-config). |
| **`custom`** | Extension point for adding custom data (e.g. for plugins) |
| **`typescriptSchema`** | Override field type generation with providing a JSON schema |
_\* An asterisk denotes that a property is required._
## Admin Config
In addition to the default [field admin config](/docs/fields/overview#admin-config), you can adjust the following properties:
| Option | Description |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **`language`** | This property can be set to any language listed [here](https://github.com/microsoft/monaco-editor/tree/main/src/basic-languages). |
| **`editorOptions`** | Options that can be passed to the monaco editor, [view the full list](https://microsoft.github.io/monaco-editor/typedoc/interfaces/editor.IDiffEditorConstructionOptions.html). |
## Example
`collections/ExampleCollection.ts
```ts
import { CollectionConfig } from 'payload/types'
export const ExampleCollection: CollectionConfig = {
slug: 'example-collection',
fields: [
{
name: 'trackingCode', // required
type: 'code', // required
required: true,
admin: {
language: 'javascript',
},
},
],
}
```