# stackexchange.revisions

**stable** **Advanced**

Edit revisions of a post.

`GET /v1/stackexchange/revisions`

## What you get

A list of Stack Exchange results in Onekey's unified shape, in `data` (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free `404 not_found` instead.

## What it costs

- **Advanced · 5 credits** for a fresh fetch, charged only when it succeeds.
- **Free when served from cache (0.2 credit for a cached response over 100 KB).**
- **Free** if the request is invalid (never charged) or the source fails or reports not found (refunded).

## Parameters

| Name | Type | Required | Default | What it is | Constraints |
| --- | --- | --- | --- | --- | --- |
| `id` | string | yes | (required) | Question id | max 10 chars; must match `[0-9]{1,10}`; trimmed |
| `site` | string | no | - | Stack Exchange site, default stackoverflow | max 41 chars; must match `[a-z][a-z.]{1,40}`; trimmed, lowercased |

## Request

```bash
curl "https://api.onekey.dev/v1/stackexchange/revisions?id=11227809" \
  -H "x-api-key: YOUR_API_KEY"
```

```python
import requests

res = requests.get(
    "https://api.onekey.dev/v1/stackexchange/revisions",
    params={"id": "11227809"},
    headers={"x-api-key": "YOUR_API_KEY"},
)
body = res.json()

if body["success"]:
    print(body["data"])
else:
    print(body["error"]["code"], body["error"]["message"])
```

```javascript
const params = new URLSearchParams({ id: "11227809" });
const res = await fetch(`https://api.onekey.dev/v1/stackexchange/revisions?${params}`, {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const body = await res.json();

if (body.success) console.log(body.data);
else console.error(body.error.code, body.error.message);
```

## Recorded response

A real Stack Exchange response, recorded and returned in Onekey's shape. Fields the platform does not provide are `null`.

```json
{
  "success": true,
  "data": [
    {
      "content": {
        "id": "5D4D2E7F-95BE-4A9A-AEF5-E911A07BD06E",
        "text": "better title, processing was unclear",
        "title": "Why is conditional processing of a sorted array faster than of an unsorted array?",
        "createdAt": "2026-04-08T05:35:32Z",
        "type": "single_user"
      },
      "ext": {
        "revision": 76,
        "postId": "11227809"
      },
      "author": {
        "id": "1536976",
        "username": "NoDataDumpNoContribution",
        "url": "https://stackoverflow.com/users/1536976/nodatadumpnocontribution",
        "avatarUrl": "https://www.gravatar.com/avatar/cc2372591e00f2ab504b59b4f7cbed43?s=256&d=identicon&r=PG",
        "reputation": 10906
      }
    },
    {
      "content": {
        "id": "6AF9C642-2A45-4BE0-9349-90C49BEC9D72",
        "text": "Make the auto-vectorization / if-conversion links more visible.  People still do ask duplicates.",
        "title": null,
        "createdAt": "2025-05-23T14:23:04Z",
        "type": "single_user"
      },
      "ext": {
        "revision": 75,
        "postId": "11227809"
      },
      "author": {
        "id": "224132",
        "username": "Peter Cordes",
        "url": "https://stackoverflow.com/users/224132/peter-cordes",
        "avatarUrl": "https://i.sstatic.net/N4ivW.png?s=256",
        "reputation": 382877
      }
    }
  ],
  "metadata": {
    "platform": "stackexchange",
    "endpoint": "revisions",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 5,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}
```

## Field mapping

How this endpoint's source fields become Onekey's [unified schema](https://onekey.dev/docs/schema.md). Fields the source lacks come back as `null`.

| Source path | Onekey field | Transform |
| --- | --- | --- |
| `revision_guid` | `content.id` | - |
| `revision_number` | `ext.revision` | `toNumber` |
| `comment` | `content.text` | - |
| `title` | `content.title` | `htmlUnescape` |
| `creation_date` | `content.createdAt` | `toIsoDate` |
| `post_id` | `ext.postId` | `toString` |
| `revision_type` | `content.type` | - |
| `user.user_id` | `author.id` | `toString` |
| `user.display_name` | `author.username` | `htmlUnescape` |
| `user.link` | `author.url` | `safeUrl` |
| `user.profile_image` | `author.avatarUrl` | `safeUrl` |
| `user.reputation` | `author.reputation` | `toNumber` |

## Caching and freshness

- Fresh for about 2 minutes. Repeat calls in that window are served from cache and are free.
- Between 2 minutes and 15 minutes the cached copy is still served instantly and marked `stale: true` while Onekey refreshes it in the background.
- If the source is down when a refresh is needed, the last copy can be served for up to 1 hour more (marked stale).
- A "not found" is remembered for 1 minute and is free.
- The cache is shared across all customers, which is what keeps repeat calls cheap.

## What can go wrong

| Status | Code | What to do |
| --- | --- | --- |
| 401 | `unauthorized` | Check the `x-api-key` header. |
| 402 | `insufficient_credits` | [Add credits](https://onekey.dev/pricing); your balance must cover the price. |
| 404 | `not_found` | Unknown endpoint path. |
| 422 | `invalid_params` | Fix the parameters using the table above. Free. |
| 429 | `rate_limited` | Wait `Retry-After` seconds, then retry. |
| 502 | `upstream_error` | The source failed. Refunded; retry with backoff. |

See [Errors](https://onekey.dev/docs/errors.md) for the full list and retry guidance.

Status: stable (verified against the live source).