# delete\_\_systemevent\_read

`DELETE /systemevent/read`

*Mark System Event(s) as Unread*

Marks one or more system events as unread for the current authenticated user by removing the read records. Send a single **id** or an array **ids** in the request body. Used to allow users to “mark as unread” in notification UIs. The operation is idempotent: deleting an already-unread event still returns success.

**Key Features:**

* Removes server-side read state for the current user and the given event(s)
* Supports a single event id or multiple ids in one request
* Idempotent: calling again when the event is already unread still returns success
* Used by notification UIs to support “Mark as unread”

**Authentication:**

* Requires valid Bearer token authentication
* User can only remove their own read state (no cross-user scope)

**Request Body:** JSON with either **id** (number) or **ids** (array of numbers). At least one valid integer id is required.

#### TypeScript Client Library

```typescript
// Single id or array of ids
public markSystemEventAsUnread = async (systemEventLogId: number | number[]): Promise<SystemEventReadStatusResponse> => {
  const body = Array.isArray(systemEventLogId) ? { ids: systemEventLogId } : { id: systemEventLogId };
  return this.makeRequest<SystemEventReadStatusResponse>('systemevent/read', 'DELETE', body);
};
```

#### Code Samples

{% tabs %}
{% tab title="Shell" %}

```shell
# Mark one system event as unread
curl -X DELETE https://backend.flashback.tech/systemevent/read \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer your-jwt-token' \
  -d '{"id": 12345}'

# Mark multiple events as unread
curl -X DELETE https://backend.flashback.tech/systemevent/read \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer your-jwt-token' \
  -d '{"ids": [12345, 12346, 12347]}'
```

{% endtab %}

{% tab title="HTTP" %}

```http
DELETE https://backend.flashback.tech/systemevent/read HTTP/1.1
Host: backend.flashback.tech
Accept: application/json
Content-Type: application/json
Authorization: Bearer your-jwt-token

{"id": 12345}
```

{% endtab %}

{% tab title="JavaScript" %}

```javascript
const headers = {
  'Accept': 'application/json',
  'Content-Type': 'application/json',
  'Authorization': 'Bearer your-jwt-token'
};

fetch('https://backend.flashback.tech/systemevent/read', {
  method: 'DELETE',
  headers: headers,
  body: JSON.stringify({ id: 12345 })
})
.then(function(res) { return res.json(); })
.then(function(body) { console.log(body); });
```

{% endtab %}

{% tab title="Ruby" %}

```ruby
require 'rest-client'

headers = {
  'Accept' => 'application/json',
  'Content-Type' => 'application/json',
  'Authorization' => 'Bearer your-jwt-token'
}

result = RestClient.delete 'https://backend.flashback.tech/systemevent/read',
  { id: 12345 }.to_json, headers: headers

p JSON.parse(result)
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

headers = {
  'Accept': 'application/json',
  'Content-Type': 'application/json',
  'Authorization': 'Bearer your-jwt-token'
}

r = requests.delete('https://backend.flashback.tech/systemevent/read',
                    headers=headers, json={'id': 12345})
print(r.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

require 'vendor/autoload.php';

$headers = array(
    'Accept' => 'application/json',
    'Content-Type' => 'application/json',
    'Authorization' => 'Bearer your-jwt-token',
);

$client = new \GuzzleHttp\Client();

try {
    $response = $client->request('DELETE', 'https://backend.flashback.tech/systemevent/read', array(
        'headers' => $headers,
        'json' => array('id' => 12345),
    ));
    print_r($response->getBody()->getContents());
} catch (\GuzzleHttp\Exception\BadResponseException $e) {
    print_r($e->getMessage());
}
```

{% endtab %}

{% tab title="Java" %}

```java
URL obj = new URL("https://backend.flashback.tech/systemevent/read");
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("DELETE");
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Content-Type", "application/json");
con.setRequestProperty("Authorization", "Bearer your-jwt-token");
con.setDoOutput(true);
con.getOutputStream().write("{\"id\":12345}".getBytes());

int responseCode = con.getResponseCode();
BufferedReader in = new BufferedReader(
    new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
    response.append(inputLine);
}
in.close();
System.out.println(response.toString());
```

{% endtab %}

{% tab title="Go" %}

```go
package main

import (
    "bytes"
    "net/http"
)

func main() {
    headers := map[string][]string{
        "Accept":       []string{"application/json"},
        "Content-Type": []string{"application/json"},
        "Authorization": []string{"Bearer your-jwt-token"},
    }
    body := []byte(`{"id":12345}`)
    req, err := http.NewRequest("DELETE", "https://backend.flashback.tech/systemevent/read", bytes.NewReader(body))
    if err != nil { return }
    for k, v := range headers { req.Header[k] = v }

    client := &http.Client{}
    resp, err := client.Do(req)
    // ...
}
```

{% endtab %}
{% endtabs %}

#### Parameters <a href="#delete__systemevent_systemeventid-read-parameters" id="delete__systemevent_systemeventid-read-parameters"></a>

| Name | In   | Type      | Required | Description                                                             |
| ---- | ---- | --------- | -------- | ----------------------------------------------------------------------- |
| id   | body | number    | false    | Single system event log ID to mark as unread (use **id** or **ids**)    |
| ids  | body | number\[] | false    | Array of system event log IDs to mark as unread (use **id** or **ids**) |

Provide either **id** or **ids**; at least one valid integer id is required.

#### Example responses

> 200 Response

```json
{
  "success": true
}
```

> 400 Response

```json
{
  "error": "Missing or invalid id or ids"
}
```

> 401 Response

```json
{
  "error": "Unauthorized"
}
```

> 500 Response

```json
{
  "error": "Internal server error"
}
```

#### Responses <a href="#delete__systemevent_systemeventid-read-responses" id="delete__systemevent_systemeventid-read-responses"></a>

| Status | Meaning                                                                    | Description                               | Schema |
| ------ | -------------------------------------------------------------------------- | ----------------------------------------- | ------ |
| 200    | [OK](https://tools.ietf.org/html/rfc7231#section-6.3.1)                    | Event(s) marked as unread successfully    | Inline |
| 400    | [Bad Request](https://tools.ietf.org/html/rfc7231#section-6.5.1)           | Missing or invalid id or ids              | Inline |
| 401    | [Unauthorized](https://tools.ietf.org/html/rfc7231#section-6.5.2)          | Authentication required or user not found | Inline |
| 500    | [Internal Server Error](https://tools.ietf.org/html/rfc7231#section-6.6.1) | Internal server error                     | Inline |

#### Response Schema <a href="#delete__systemevent_systemeventid-read-responseschema" id="delete__systemevent_systemeventid-read-responseschema"></a>

Status Code **200**

| Name      | Type    | Required | Restrictions | Description                     |
| --------- | ------- | -------- | ------------ | ------------------------------- |
| » success | boolean | true     | none         | Whether the operation succeeded |

Status Code **400**, **401**, **500**

| Name    | Type   | Required | Restrictions | Description   |
| ------- | ------ | -------- | ------------ | ------------- |
| » error | string | true     | none         | Error message |

This operation requires authentication via Bearer token.


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