> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

# Update

PATCH https://fai.buildwithfern.com/guidance/{domain}/{guidance_id}
Content-Type: application/json

Reference: https://buildwithfern.com/learn/docs/ai-features/ask-fern/api-reference/guidance/update

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Servers

- `https://fai.buildwithfern.com` (Production, default)
- `https://fai-dev.buildwithfern.com` (Development)
- `http://localhost:8080` (Local)

## Request

### Path parameters

- `domain` (string, required)
- `guidance_id` (string, required)

### Body (application/json)

This endpoint expects an UpdateGuidanceRequest.

- `context` (list of string, optional, nullable) — The updated context of the guidance document, as a list of strings, that will be indexed. If not provided, this field will remain unchanged.
- `document` (string, optional, nullable) — The updated content of the guidance document that will be returned to Ask Fern during Ask Fern retrieval. If not provided, this field will remain unchanged.

## Response

### 200

Successful Response

- `guidance` (Guidance, required) — The updated guidance document

## Errors

### 422 Unprocessable Entity Error

Validation Error

- `detail` (list of ValidationError, optional)

## Types

### Guidance

- `domain` (string, required)
- `context` (list of string, required)
- `document` (string, required)
- `guidance_id` (string, required)
- `created_at` (datetime, required)
- `updated_at` (datetime, required)

### ValidationError

- `loc` (list of ValidationErrorLocItems, required)
- `msg` (string, required)
- `type` (string, required)

### ValidationErrorLocItems

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "guidance": {
    "domain": "string",
    "context": [
      "string"
    ],
    "document": "string",
    "guidance_id": "string",
    "created_at": "2024-01-15T09:30:00Z",
    "updated_at": "2024-01-15T09:30:00Z"
  }
}
```