---
description: REST and GraphQL API documentation on the Fields collection in Directus.
readTime: 7 min read
pageClass: page-reference
---
# Fields
> Fields are individual pieces of content within an item. They are mapped to columns in the database.
> [Learn more about Fields](/user-guide/overview/glossary#fields).
## The Field Object
`collection` **string**\
Name of the collection the field resides in.
`field` **string**\
The identifier of the field. This matches the table column name.
`type` **string**\
The Directus data type of the field. See [Types](/user-guide/overview/glossary#types) for possible options.
#### Meta
Directus metadata, primarily used in the Admin App. Meta is optional.
`id` **integer**\
Primary key of the metadata row in `directus_fields`.
`collection` **string**\
The name of the collection this field resides in.
`field` **string**\
Identifier of the field. Matches the column name in the database.
`special` **string**\
Any special transform flags that apply to this field.
`interface` **string**\
The interface used for this field.
`options` **object**\
The interface options configured for this field. The structure is based on the interface used.
`display` **string**\
The display used for this field.
`display_options` **string**\
The configured options for the used display.
`readonly` **boolean**\
If the field is considered readonly in the Admin App.
`hidden` **boolean**\
If the field is hidden from the edit page in the Admin App.
`sort` **integer**\
Where this field is shown on the edit page in the Admin App.
`width` **string**\
How wide the interface is rendered on the edit page in the Admin App. One of `half`, `half-left`, `half-right`, `half-space`,
`full`, `fill`.
`translations` **array**\
How this field's name is displayed in the different languages in the Admin App.
`note` **string**\
Short description displayed in the Admin App.
#### Schema
"Raw" database information. Based on the database vendor used, different information might be returned. The following
are available for all drivers. Note: schema is optional. If a field exist in directus_fields, but not in the database,
it's an alias commonly used for relational (O2M) or presentation purposes in the Admin App.
`name` **string**\
Identifier of the field. Matches the column name in the database.
`table` **string**\
Name of the table the column resides in.
`data_type` **string**\
The datatype as used in the database. Note: this value is database vendor specific.
`default_value` **any**\
The configured default value for the column.
`max_length` **integer**\
Configured length for varchar type columns.
`numeric_precision` **integer**\
Precision for integer/float/decimal type fields.
`numeric_scale` **integer**\
Scale for integer/float/decimal type fields.
`is_nullable` **boolean**\
Whether or not the column is nullable. This is what is used as the "required" state in Directus.
`is_primary_key` **boolean**\
Whether or not the field is the primary key of the table.
`foreign_key_column` **string**\
If the current column has a foreign key constraint, this points to the related column.
`foreign_key_table` **string**\
If the current column has a foreign key constraint, this points to the related table.
`comment` **string**\
Comment as stored in the database.
```json
{
"collection": "articles",
"field": "id",
"type": "integer",
"meta": {
"id": 16,
"collection": "articles",
"field": "id",
"special": null,
"interface": "numeric",
"options": null,
"display": null,
"display_options": null,
"readonly": true,
"hidden": true,
"sort": 1,
"width": "full",
"translations": null,
"note": "The unique identifier of the article"
},
"schema": {
"name": "id",
"table": "articles",
"data_type": "integer",
"default_value": null,
"max_length": null,
"numeric_precision": 32,
"numeric_scale": 0,
"is_nullable": false,
"is_primary_key": true,
"has_auto_increment": true,
"foreign_key_column": null,
"foreign_key_table": null,
"comment": null
}
}
```
## List All Fields
List the available fields.
### Request
`GET /fields`
`POST /graphql/system`
```graphql
type Query {
fields: [directus_fields]
}
```
```js
import { createDirectus, rest, readFields } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(readFields());
```
#### Query Parameters
This endpoint doesn't currently support any query parameters.
### Response
An array of [field objects](#the-field-object).
### Example
`GET /fields`
`POST /graphql/system`
```graphql
query {
fields {
collection
field
}
}
```
```js
import { createDirectus, rest, readFields } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(readFields());
```
## List Fields in Collection
List the available fields in a given collection.
### Request
`GET /fields/:collection`
`POST /graphql/system`
```graphql
type Query {
fields_in_collection(collection: String!): directus_fields
}
```
```js
import { createDirectus, rest, readFieldsByCollection } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(readFieldsByCollection(collection_name));
```
#### Query Parameters
This endpoint doesn't currently support any query parameters.
### Response
An array of [field objects](#the-field-object).
### Example
`GET /fields/articles`
`POST /graphql/system`
```graphql
query {
fields_in_collection(collection: "articles") {
collection
field
}
}
```
```js
import { createDirectus, rest, readFieldsByCollection } from '@directus/sdk';
const client = createDirectus('https://directus.example.com').with(rest());
const result = await client.request(readFieldsByCollection('articles'));
```
## Retrieve a Field
Get a single field in a given collection.
### Request
`GET /fields/:collection/:field`
`POST /graphql/system`
```graphql
type Query {
fields_by_name(collection: String!, field: String!): directus_fields
}
```
```js
import { createDirectus, rest, readField } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(readField(collection_name, field_name));
```
#### Query Parameters
This endpoint doesn't currently support any query parameters.
### Response
A [field object](#the-field-object).
### Example
`GET /fields/articles/title`
`POST /graphql/system`
```graphql
query {
fields_by_name(collection: "articles", field: "title") {
collection
field
}
}
```
```js
import { createDirectus, rest, readField } from '@directus/sdk';
const client = createDirectus('https://directus.example.com').with(rest());
const result = await client.request(readField('articles', 'title'));
```
## Create a Field
Create a new field in the given collection.
### Request
`POST /fields/:collection`
Provide a [collection object](#the-collection-object) as the body of your request with `field` and `type` being required
parameters.
`POST /graphql/system`
```graphql
type Mutation {
create_fields_item(collection: String!, data: create_directus_fields_input!): directus_fields
}
```
```js
import { createDirectus, rest, createField } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(
createField(collection_name, {
field: field_name,
type: field_type,
field_field: value,
})
);
```
#### Query Parameters
This endpoint doesn't currently support any query parameters.
#### Request Body
`field` **Required**\
Field key, also used as the column name.
`type` **Required**\
One of the Directus types. This in turn controls what datatype is used for the column in the database. Setting the type to
`alias` prevents a column from being created in the database.
`meta`\
Any of the optional meta values in the [field object](#the-field-object).
`schema`\
Any of the optional schema values in the [field object](#the-field-object).
### Response
The [field object](#the-field-object) for the created field.
### Example
`POST /fields/articles`
```json
{
"field": "title",
"type": "string",
"meta": {
"icon": "title"
},
"schema": {
"default_value": "Hello World"
}
}
```
`POST /graphql/system`
```graphql
mutation {
create_fields_item(
collection: "articles"
data: { field: "title", type: "string", meta: { icon: "title" }, schema: { default_value: "Hello World" } }
) {
collection
field
}
}
```
```js
import { createDirectus, rest, createField } from '@directus/sdk';
const client = createDirectus('https://directus.example.com').with(rest());
const result = await client.request(
createField('articles', {
field: 'subject tags',
type: 'csv',
meta: {
interface: 'tags',
note: 'subject tags for an article',
},
})
);
```
## Update a Field
Updates the given field in the given collection.
`PATCH /fields/articles/title`
Provide a partial [field object](#the-field-object) as the body of your request.
`POST /graphql/system`
```graphql
type Mutation {
update_fields_item(collection: String!, field: String!, data: update_directus_fields_input!): directus_fields
}
```
```js
import { createDirectus, rest, updateField } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(updateField(collection_name, field_name, partial_field_object));
```
#### Query Parameters
This endpoint doesn't currently support any query parameters.
#### Request Body
`type`\
The new type for the field.
::: warning Changing Type
Types may not be compatible, and/or data might be truncated / corrupted. Please be careful when changing types of an
existing field with content.
:::
`meta`\
Any of the optional meta values in the [field object](#the-field-object).
`schema`\
Any of the optional schema values in the [field object](#the-field-object).
Updating the field name is not supported at this time.
### Response
The [field object](#the-field-object) for the updated field.
### Example
`PATCH /fields/articles/title`
```json
{
"meta": {
"note": "Put the title here"
},
"schema": {
"default_value": "Hello World!"
}
}
```
`POST /graphql/system`
```graphql
mutation {
update_fields_item(
collection: "articles"
field: "title"
data: { meta: { note: "Put the title here" }, schema: { default_value: "Hello World!" } }
) {
collection
field
}
}
```
```js
import { createDirectus, rest, updateField } from '@directus/sdk';
const client = createDirectus('https://directus.example.com').with(rest());
const result = await client.request(
updateField('articles', 'subject tags', {
meta: {
note: 'tags for the article based on subjects addressed',
},
})
);
```
## Delete a Field
Deletes the given field in the given collection.
::: danger Destructive
Be aware, this will delete the column from the database, including all data in it. This action can't be undone.
:::
### Request
`DELETE /fields/:collection/:field`
`POST /graphql/system`
```graphql
type Mutation {
delete_fields_item(collection: String!, field: String!): delete_field
}
```
```js
import { createDirectus, rest, deleteField } from '@directus/sdk';
const client = createDirectus('directus_project_url').with(rest());
const result = await client.request(deleteField(collection_name, field_name));
```
### Example
`DELETE /fields/articles/title`
`POST /graphql/system`
```graphql
mutation {
delete_fields_item(collection: "articles", field: "title") {
collection
field
}
}
```
```js
import { createDirectus, rest, deleteField } from '@directus/sdk';
const client = createDirectus('https://directus.example.com').with(rest());
const result = await client.request(deleteField('articles', 'featured_quote'));
```