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# Get ReviewChange by ID

GET https://{tenant_name}.benchling.com/api/v3/review-change/{review_change_id}

Get a single ReviewChange by ID.

Reference: https://docs.benchling.com/docs/api/benchling-api/review-change/get

## Authentication

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

## Request

### Path parameters

- `review_change_id` (string, required) — ID of the ReviewChange.

### Query parameters

- `returning` (string, optional) — Comma-separated list of top-level fields to include in each returned item. Cannot overlap with omit.
- `omit` (string, optional) — Comma-separated list of top-level fields to omit from each returned item. Cannot overlap with returning.

### Headers

- `EARLY-ACCESS` (string, optional) — Set to true to access beta operations via /api/v3.

## Response

### 200

OK

- `__typename` (string, optional)
- `action` (enum, optional, nullable) — The action taken
  - Allowed values: `SEND_FOR_REVIEW`, `REQUEST_CHANGES`, `APPROVE`, `REJECT`, `RETRACT`, `ACCEPT`, `COMPLETE`, `COMPLETE_CYCLE`, `SIGN`, `REVIEW`, `WITNESS`, `SELF_REVIEW`, `COMMENT`, `REASSIGN`
- `comment` (string, optional, nullable) — Optional comment associated with this change
- `createdAt` (string, optional) — When this change occurred
- `eSigned` (boolean, optional, nullable) — Whether this change was electronically signed
- `id` (string, optional) — ID of the review change
- `review` (ReviewRef, optional) — The review this change belongs to
- `snapshot` (ReviewSnapshot, optional, nullable) — A point-in-time snapshot of the reviewable item taken at the time of this action

## Errors

### 400 Review Change Get Request Bad Request Error

Bad Request

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 403 Review Change Get Request Forbidden Error

Forbidden

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 404 Review Change Get Request Not Found Error

Not Found

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 429 Review Change Get Request Too Many Requests Error

Too Many Requests

- `detail` (TooManyRequestsErrorBodyDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)
- `violated-policies` (list of enum, optional) — The budget policies that rejected the request, in canonical order: `user`, `integration`, then `tenant`.
  - Allowed values: `user`, `integration`, `tenant`

### 500 Review Change Get Request Internal Server Error

Internal Server Error

- `detail` (InternalServerErrorBodyDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `errorId` (string, optional)

## Types

### ReviewRef

- `__typename` (string, optional)
- `id` (string, optional)

### ReviewSnapshot

A point-in-time snapshot of a reviewable item (e.g. an Entry) captured when a review action was taken. Snapshots are a configurable feature enabled via ENABLE_ELN_REVIEW_SNAPSHOTS. When status is SUCCEEDED, a time-limited downloadUrl is available.

- `__typename` (string, optional)
- `downloadUrl` (string, optional, nullable) — URL to download the snapshot export. Only present when status is SUCCEEDED.
- `size` (integer, optional, nullable) — Size of the snapshot export in bytes. Only present when status is SUCCEEDED.
- `status` (enum, optional, nullable) — Status of the snapshot export
  - Allowed values: `PENDING`, `RUNNING`, `SUCCEEDED`, `FAILED`

### GeneralErrorDetail

### TooManyRequestsErrorBodyDetail

### InternalServerErrorBodyDetail

## Examples

**Response**

```json
{
  "__typename": "__typename",
  "action": "SEND_FOR_REVIEW",
  "comment": "comment",
  "createdAt": "createdAt",
  "eSigned": true,
  "id": "id",
  "review": {
    "__typename": "__typename",
    "id": "id"
  },
  "snapshot": {
    "__typename": "__typename",
    "downloadUrl": "downloadUrl",
    "size": 1,
    "status": "PENDING"
  }
}
```

**SDK Code**

```python
import requests

url = "https://{tenant_name}.benchling.com/api/v3/review-change/review_change_id"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://{tenant_name}.benchling.com/api/v3/review-change/review_change_id';
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```