--- title: Upload Field label: Upload order: 210 desc: Upload fields will allow a file to be uploaded, only from a collection supporting Uploads. Learn how to use Upload fields, see examples and options. keywords: upload, images media, fields, config, configuration, documentation, Content Management System, cms, headless, javascript, node, react, express --- The Upload field allows for the selection of a Document from a collection supporting Uploads, and formats the selection as a thumbnail in the Admin panel. Important:
To use this field, you need to have a Collection configured to allow Uploads. For more information, [click here](/docs/upload/overview) to read about how to enable Uploads on a collection by collection basis.
**Example uses:** - To provide a `Page` with a featured image - To allow for a `Product` to deliver a downloadable asset like PDF or MP3 - To give a layout building block the ability to feature a background image ## Config | Option | Description | | -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **`name`** \* | To be used as the property name when stored and retrieved from the database. [More](/docs/fields/overview#field-names) | | **`*relationTo`** \* | Provide a single collection `slug` to allow this field to accept a relation to. Note: the related collection must be configured to support Uploads. | | **`filterOptions`** | A query to filter which options appear in the UI and validate against. [More](#filtering-upload-options). | | **`maxDepth`** | Sets a number limit on iterations of related documents to populate when queried. [Depth](/docs/getting-started/concepts#depth) | | **`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. | | **`validate`** | Provide a custom validation function that will be executed on both the Admin panel and the backend. [More](/docs/fields/overview#validation) | | **`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. | | **`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 the [default field admin config](/docs/fields/overview#admin-config) for more details. | | **`custom`** | Extension point for adding custom data (e.g. for plugins) | _\* An asterisk denotes that a property is required._ ## Example `collections/ExampleCollection.ts` ```ts import { CollectionConfig } from 'payload/types' export const ExampleCollection: CollectionConfig = { slug: 'example-collection', fields: [ { name: 'backgroundImage', // required type: 'upload', // required relationTo: 'media', // required required: true, }, ], } ``` ## Filtering upload options Options can be dynamically limited by supplying a [query constraint](/docs/queries/overview), which will be used both for validating input and filtering available uploads in the UI. The `filterOptions` property can either be a `Where` query, or a function returning `true` to not filter, `false` to prevent all, or a `Where` query. When using a function, it will be called with an argument object with the following properties: | Property | Description | | ------------- | ----------------------------------------------------------------------------------------------------- | | `relationTo` | The collection `slug` to filter against, limited to this field's `relationTo` property | | `data` | An object containing the full collection or global document currently being edited | | `siblingData` | An object containing document data that is scoped to only fields within the same parent of this field | | `id` | The `id` of the current document being edited. `id` is `undefined` during the `create` operation | | `user` | An object containing the currently authenticated user | ## Example ```ts const uploadField = { name: 'image', type: 'upload', relationTo: 'media', filterOptions: { mimeType: { contains: 'image' }, }, } ``` You can learn more about writing queries [here](/docs/queries/overview). Note:
When an upload field has both filterOptions and a custom{' '} validate function, the api will not validate filterOptions{' '} unless you call the default upload field validation function imported from{' '} payload/fields/validations in your validate function.