# Ask for a format

Records the file extension of a format we don't support yet. Only the extension is kept, without the account or the address.

`POST https://api.switchfile.io/v1/app/format-requests`

No API key needed.

## Example

cURL:

```bash
curl "https://api.switchfile.io/v1/app/format-requests" \
  -H "Content-Type: application/json" \
  -d '{
    "extension": "heic"
  }'
```

Node.js:

```js
const res = await fetch("https://api.switchfile.io/v1/app/format-requests", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    extension: "heic"
  }),
});
if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
console.log(await res.json());
```

PHP:

```php
<?php
$ch = curl_init('https://api.switchfile.io/v1/app/format-requests');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => json_encode([
        'extension' => 'heic',
    ]),
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
    ],
    CURLOPT_RETURNTRANSFER => true,
]);
$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
curl_close($ch);

if ($status >= 400) {
    throw new RuntimeException("HTTP $status: $response");
}
print_r(json_decode($response, true));
```

Python:

```python
import requests

res = requests.post(
    "https://api.switchfile.io/v1/app/format-requests",
    json={
        "extension": "heic",
    },
)
res.raise_for_status()
print(res.json())
```

## Request body

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `extension` | string | yes | File extension of the missing format, like heic (1 to 20 characters) |

## Responses

### 202: Recorded

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `extension` | string | yes | Extension as recorded: lower case, without the dot |

Example (application/json):

```json
{
  "extension": "heic"
}
```

### 422: Invalid data. errors names the fields (`INVALID_DATA`)

Example (application/problem+json):

```json
{
  "type": "https://switchfile.io/docs/api/v1#errors-invalid-data",
  "title": "Invalid data",
  "status": 422,
  "code": "INVALID_DATA",
  "detail": "The request contains invalid data.",
  "errors": {
    "to": [
      "Expected string"
    ]
  }
}
```

### 429: Too many requests or a daily quota is used up. See Retry-After (`RATE_LIMIT_EXCEEDED`)

Example (application/problem+json):

```json
{
  "type": "https://switchfile.io/docs/api/v1#errors-rate-limit-exceeded",
  "title": "Rate limit exceeded",
  "status": 429,
  "code": "RATE_LIMIT_EXCEEDED",
  "detail": "Too many requests. Try again in 12 seconds."
}
```

Error bodies and codes are explained in [Errors](https://switchfile.io/docs/errors).