# WLAN

> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**<br/>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The APIs described in this document are used only for non-universal products, such as routers.


## Modules to Import

```js
import wifiext from '@ohos.wifiext';
```

## wifiext.enableHotspot

enableHotspot(): boolean;

Enables the WLAN hotspot.

- Required permissions:
  ohos.permission.MANAGE_WIFI_HOTSPOT_EXT

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Return value
  | **Type**| **Description**|
  | -------- | -------- |
  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|


## wifiext.disableHotspot

disableHotspot(): boolean;

Disables the WLAN hotspot.

- Required permissions:
  ohos.permission.MANAGE_WIFI_HOTSPOT_EXT

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Return value
  | **Type**| **Description**|
  | -------- | -------- |
  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|


## wifiext.getSupportedPowerModel

getSupportedPowerModel(): Promise&lt;Array&lt;PowerModel&gt;&gt;

Obtains the supported power models. The method uses a promise to return the result.

- Required permissions:
  ohos.permission.GET_WIFI_INFO

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Return value
  | Type| Description|
  | -------- | -------- |
  | Promise&lt;Array&lt;[PowerModel](#PowerModel)&gt;&gt; | Promise used to return the power models obtained.|


## PowerModel

Enumerates of the power models.

| Name| Default Value| Description|
| -------- | -------- | -------- |
| SLEEPING | 0 | Sleeping|
| GENERAL | 1 | General|
| THROUGH_WALL | 2 | Through_wall|


## wifiext.getSupportedPowerModel

getSupportedPowerModel(callback: AsyncCallback&lt;Array&lt;PowerModel&gt;&gt;): void

Obtains the supported power models. The method uses an asynchronous callback to return the result.

- Required permissions:
  ohos.permission.GET_WIFI_INFO

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Parameters
  | Name| Type| Mandatory| Description|
  | -------- | -------- | -------- | -------- |
  | callback | AsyncCallback&lt;[PowerModel](#PowerModel)&gt; | Yes| Callback used to return the power models obtained.|


## wifiext.getPowerModel

getPowerModel(): Promise&lt;PowerModel&gt;

Obtains the power model. The method uses a promise to return the result.

- Required permissions:
  ohos.permission.GET_WIFI_INFO

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Return value
  | Type| Description|
  | -------- | -------- |
  | Promise&lt;[PowerModel](#PowerModel)&gt; | Promise used to return the power model obtained.|


## wifiext.getPowerModel

getPowerModel(callback: AsyncCallback&lt;PowerModel&gt;): void

Obtains the power model. The method uses an asynchronous callback to return the result.

- Required permissions:
  ohos.permission.GET_WIFI_INFO

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Parameters
  | Name| Type| Mandatory| Description|
  | -------- | -------- | -------- | -------- |
  | callback | AsyncCallback&lt;[PowerModel](#PowerModel)&gt; | Yes| Callback invoked to return the power mode obtained.|


## wifiext.setPowerModel

setPowerModel(model: PowerModel) : boolean;

 Sets the power model.

- Required permissions:
  ohos.permission.MANAGE_WIFI_HOTSPOT_EXT

- System capability:
  SystemCapability.Communication.WiFi.AP.Extension

- Parameters
  | Name| Type| Mandatory| Description|
  | -------- | -------- | -------- | -------- |
  | model | AsyncCallback&lt;[PowerModel](#PowerModel)&gt; | Yes| Power model to set.|

- Return value
  | **Type**| **Description**|
  | -------- | -------- |
  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|