> ## Documentation Index
> Fetch the complete documentation index at: https://wukong.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Remove Channel Blacklist

> Remove specific users from channel blacklist

## Overview

Remove specific users from channel blacklist. Removed users will regain normal permissions and can send and receive channel messages again. Related conversations will be restored if applicable.

## Request Body

### Required Parameters

<ParamField body="channel_id" type="string" required>
  Channel ID, cannot be empty or contain special characters
</ParamField>

<ParamField body="channel_type" type="integer" required>
  Channel type

  * `1` - Person channel
  * `2` - Group channel
</ParamField>

<ParamField body="uids" type="array" required>
  List of user IDs to remove from blacklist

  <ParamField body="uids[]" type="string">
    User ID
  </ParamField>
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "http://localhost:5001/channel/blacklist_remove" \
    -H "Content-Type: application/json" \
    -d '{
      "channel_id": "group123",
      "channel_type": 2,
      "uids": ["user1", "user2"]
    }'
  ```

  ```javascript JavaScript theme={null}
  const response = await fetch('http://localhost:5001/channel/blacklist_remove', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      channel_id: 'group123',
      channel_type: 2,
      uids: ['user1', 'user2']
    })
  });

  const data = await response.json();
  console.log(data);
  ```

  ```python Python theme={null}
  import requests

  data = {
      "channel_id": "group123",
      "channel_type": 2,
      "uids": ["user1", "user2"]
  }

  response = requests.post('http://localhost:5001/channel/blacklist_remove', json=data)
  result = response.json()
  print(result)
  ```

  ```go Go theme={null}
  package main

  import (
      "bytes"
      "encoding/json"
      "fmt"
      "net/http"
  )

  func main() {
      data := map[string]interface{}{
          "channel_id":   "group123",
          "channel_type": 2,
          "uids":         []string{"user1", "user2"},
      }
      
      jsonData, _ := json.Marshal(data)
      
      resp, err := http.Post(
          "http://localhost:5001/channel/blacklist_remove",
          "application/json",
          bytes.NewBuffer(jsonData),
      )
      if err != nil {
          panic(err)
      }
      defer resp.Body.Close()
      
      var result map[string]interface{}
      json.NewDecoder(resp.Body).Decode(&result)
      fmt.Printf("%+v\n", result)
  }
  ```
</RequestExample>

<ResponseExample>
  ```json Success Response theme={null}
  {
    "status": "ok"
  }
  ```
</ResponseExample>

## Response Fields

<ResponseField name="status" type="string" required>
  Operation status, returns `"ok"` on success
</ResponseField>

## Status Codes

| Status Code | Description                               |
| ----------- | ----------------------------------------- |
| 200         | Users removed from blacklist successfully |
| 400         | Request parameter error                   |
| 403         | No management permission                  |
| 404         | Channel does not exist                    |
| 500         | Internal server error                     |

## Functionality

### Remove Operation

The remove operation performs the following steps:

1. **Verify Users**: Check if specified users are in the blacklist
2. **Remove Entries**: Delete specified users from channel blacklist
3. **Restore Permissions**: Users regain ability to send and receive messages
4. **Restore Conversations**: Restore user's related conversations if applicable

### Permission Restoration

Removed users will regain:

| Permission          | Description                                        | Effective Time |
| ------------------- | -------------------------------------------------- | -------------- |
| Send Messages       | Can send messages to the channel                   | Immediately    |
| Receive Messages    | Can receive channel messages                       | Immediately    |
| Conversation Access | Restore channel conversations (if applicable)      | Immediately    |
| Normal Interaction  | Restore all normal channel interaction permissions | Immediately    |

## Special Cases

### Live Channels

* **No Conversation Restoration**: Live channels do not automatically restore conversations
* **Permissions Take Effect Immediately**: Users can still immediately regain send and receive permissions

### Person Channels

* **Blacklist Not Supported**: Person channels do not support blacklist operations
* **Returns Error**: Attempting operations will return corresponding error messages

## Use Cases

### Lift Mistaken Ban

```bash theme={null}
# Remove users mistakenly added to blacklist
curl -X POST "/channel/blacklist_remove" -d '{
  "channel_id": "group123",
  "channel_type": 2,
  "uids": ["innocent_user"]
}'
```

### Batch Restoration

```bash theme={null}
# Batch remove multiple users
curl -X POST "/channel/blacklist_remove" -d '{
  "channel_id": "group123",
  "channel_type": 2,
  "uids": ["user1", "user2", "user3"]
}'
```

### Temporary Unban

```bash theme={null}
# Temporarily lift user restrictions
curl -X POST "/channel/blacklist_remove" -d '{
  "channel_id": "group123",
  "channel_type": 2,
  "uids": ["temp_banned_user"]
}'
```

## Best Practices

1. **Permission Verification**: Ensure operator has sufficient management permissions
2. **Operation Recording**: Record all blacklist change operations
3. **Notification Mechanism**: Notify relevant administrators and users
4. **Progressive Unbanning**: For serious violators, consider progressive permission restoration
5. **Monitoring Mechanism**: Continue monitoring user behavior after removal
6. **Backup Strategy**: Backup current blacklist state before bulk operations

## Error Handling

### Common Errors

| Error Message              | Cause                           | Solution                            |
| -------------------------- | ------------------------------- | ----------------------------------- |
| Channel ID cannot be empty | No channel ID provided          | Ensure valid channel ID is provided |
| Channel type cannot be 0   | Invalid channel type            | Use valid channel type (1 or 2)     |
| uids cannot be empty       | No user list provided           | Provide list of user IDs to remove  |
| Remove blacklist failed    | Remove operation failed         | Check if users are in blacklist     |
| Add conversation failed    | Conversation restoration failed | Check conversation system status    |

## Related APIs

* [Add Channel Blacklist](/en/api/channel/blacklist) - Add users to blacklist
* [Set Channel Blacklist](/en/api/channel/blacklist-set) - Set complete blacklist
* [Add Channel Whitelist](/en/api/channel/whitelist) - Manage whitelist users
* [Remove Channel Whitelist](/en/api/channel/whitelist-remove) - Remove whitelist users