# @ohos.net.sharing

The **sharing** module allows you to share your device's Internet connection with other connected devices by means of Wi-Fi hotspot, Bluetooth, and USB sharing. It also allows you to query the network sharing state and shared mobile data volume.

> **NOTE**<br>
> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.

## Modules to Import

```js
import sharing from '@ohos.net.sharing'
```

## sharing.isSharingSupported

isSharingSupported(callback: AsyncCallback\<boolean>): void

Checks whether network sharing is supported. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| callback | AsyncCallback\<boolean> | Yes  | Callback used to return the result. The value **true** means that network sharing is supported, and **false** means the opposite.|

**Example**

```js
sharing.isSharingSupported((error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.isSharingSupported

isSharingSupported(): Promise\<boolean>

Checks whether network sharing is supported. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<boolean> | Promise used to return the result. The value **true** means that network sharing is supported, and **false** means the opposite.|

**Example**

```js
sharing.isSharingSupported().then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.isSharing

isSharing(callback: AsyncCallback\<boolean>): void

Checks whether network sharing is in progress. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| callback | AsyncCallback\<boolean> | Yes  | Callback used to return the result. The value **true** means that network sharing is in progress, and **false** means the opposite.|

**Example**

```js
sharing.isSharing((error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.isSharing

isSharing(): Promise\<boolean>

Checks whether network sharing is in progress. This API uses a promise to return the result.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System API**: This is a system API.

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<boolean> | Promise used to return the result. The value **true** means that network sharing is in progress, and **false** means the opposite.|

**Example**

```js
sharing.isSharing().then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.startSharing

startSharing(type: SharingIfaceType, callback: AsyncCallback\<void>): void

Starts network sharing of a specified type. This API uses an asynchronous callback to return the result.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System API**: This is a system API.

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|
| callback | AsyncCallback\<void> | Yes  | Callback used to return the result.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.startSharing(SharingIfaceType.SHARING_WIFI, (error) => {
    console.log(JSON.stringify(error));
});
```

## sharing.startSharing

startSharing(type: SharingIfaceType): Promise\<void>

Starts network sharing of a specified type. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<void> | Promise used to return the result.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.startSharing(SharingIfaceType.SHARING_WIFI).then(() => {
    console.log("start wifi sharing successful");
}).catch(error => {
    console.log("start wifi sharing failed");
});
```

## sharing.stopSharing

stopSharing(type: SharingIfaceType, callback: AsyncCallback\<void>): void

Stops network sharing of a specified type. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|
| callback | AsyncCallback\<void> | Yes  | Callback used to return the result.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.stopSharing(SharingIfaceType.SHARING_WIFI, (error) => {
    console.log(JSON.stringify(error));
});
```

## sharing.stopSharing

stopSharing(type: SharingIfaceType): Promise\<void>

Stops network sharing of a specified type. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<void> | Promise used to return the result.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.stopSharing(SharingIfaceType.SHARING_WIFI).then(() => {
    console.log("stop wifi sharing successful");
}).catch(error => {
    console.log("stop wifi sharing failed");
});
```

## sharing.getStatsRxBytes

getStatsRxBytes(callback: AsyncCallback\<number>): void

Obtains the volume of mobile data traffic received via network sharing. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| callback | AsyncCallback\<number> | Yes  | Callback used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsRxBytes((error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getStatsRxBytes

getStatsRxBytes(): Promise\<number>

Obtains the volume of mobile data traffic received via network sharing. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<number> | Promise used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsRxBytes().then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.getStatsTxBytes

getStatsTxBytes(callback: AsyncCallback\<number>): void

Obtains the volume of mobile data traffic sent via network sharing. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| callback | AsyncCallback\<number> | Yes  | Callback used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsTxBytes((error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getStatsTxBytes

getStatsTxBytes(): Promise\<number>

Obtains the volume of mobile data traffic sent via network sharing. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<number> | Promise used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsTxBytes().then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.getStatsTotalBytes

getStatsTotalBytes(callback: AsyncCallback\<number>): void

Obtains the volume of mobile data traffic sent and received via network sharing. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| callback | AsyncCallback\<number> | Yes  | Callback used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsTotalBytes((error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getStatsTotalBytes

getStatsTotalBytes(): Promise\<number>

Obtains the volume of mobile data traffic sent and received via network sharing. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<number> | Promise used to return the data volume, in KB.|

**Example**

```js
sharing.getStatsTotalBytes().then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.getSharingIfaces

getSharingIfaces(state: SharingIfaceState, callback: AsyncCallback\<Array\<string>>): void

Obtains the names of NICs in the specified network sharing state. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| state | [SharingIfaceState](#sharingifacestate) | Yes  | Network sharing state.|
| callback | AsyncCallback\<Array\<string>> | Yes  | Callback used to return an array of NIC names.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.getSharingIfaces(SharingIfaceState.SHARING_NIC_CAN_SERVER, (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getSharingIfaces

getSharingIfaces(state: SharingIfaceState): Promise\<Array\<string>>

Obtains the names of NICs in the specified network sharing state. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| state | [SharingIfaceState](#sharingifacestate) | Yes  | Network sharing state.|

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<Array\<string>> | Promise used to return an array of NIC names.|

**Example**

```js
import SharingIfaceState from '@ohos.net.sharing'
sharing.getSharingIfaces(SharingIfaceState.SHARING_NIC_CAN_SERVER).then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.getSharingState

getSharingState(type: SharingIfaceType, callback: AsyncCallback\<SharingIfaceState>): void

Obtains the network sharing state of the specified type. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|
| callback | AsyncCallback\<[SharingIfaceState](#sharingifacestate)> | Yes  | Callback used to return the network sharing state.|

**Example**

```js
import SharingIfaceState from '@ohos.net.sharing'
sharing.getSharingState(SharingIfaceType.SHARING_WIFI, (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getSharingState

getSharingState(type: SharingIfaceType): Promise\<SharingIfaceState>

Obtains the network sharing state of the specified type. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<[SharingIfaceState](#sharingifacestate)> | Promise used to return the network sharing state.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.getSharingState(SharingIfaceType.SHARING_WIFI).then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.getSharableRegexes

getSharableRegexes(type: SharingIfaceType, callback: AsyncCallback\<Array\<string>>): void

Obtains regular expressions of NICs of a specified type. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|
| callback | AsyncCallback\<Array\<string>> | Yes  | Callback used to return an array of regular expressions.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.getSharableRegexes(SharingIfaceType.SHARING_WIFI, (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.getSharableRegexes

getSharableRegexes(type: SharingIfaceType): Promise\<Array\<string>>

Obtains regular expressions of NICs of a specified type. This API uses a promise to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | [SharingIfaceType](#sharingifacetype) | Yes  | Sharing type. The value **0** means Wi-Fi hotspot sharing, **1** means USB sharing, and **2** means Bluetooth sharing.|

**Return value**

| Type                             | Description                                 |
| --------------------------------- | ------------------------------------- |
| Promise\<Array\<string>> | Promise used to return an array of regular expressions.|

**Example**

```js
import SharingIfaceType from '@ohos.net.sharing'
sharing.getSharableRegexes(SharingIfaceType.SHARING_WIFI).then(data => {
    console.log(JSON.stringify(data));
}).catch(error => {
    console.log(JSON.stringify(error));
});
```

## sharing.on('sharingStateChange')

on(type: 'sharingStateChange', callback: Callback\<boolean>): void

Subscribes to network sharing state changes. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<boolean> | Yes  | Callback used to return the network sharing state.|

**Example**

```js
sharing.on('sharingStateChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.off('sharingStateChange')

off(type: 'sharingStateChange', callback?: Callback\<boolean>): void

Unsubscribes from network sharing state changes. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<boolean> | No  | Callback used for unsubscription.|

**Example**

```js
sharing.off('sharingStateChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.on('interfaceSharingStateChange')

on(type: 'interfaceSharingStateChange', callback: Callback\<{ type: SharingIfaceType, iface: string, state: SharingIfaceState }>): void

Subscribes to network sharing state changes of a specified NIC. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<{ type: [SharingIfaceType](#sharingifacetype), iface: string, state: SharingIfaceState(#sharingifacestate) }> | Yes  | Callback invoked when the network sharing state of the specified NIC changes.|

**Example**

```js
sharing.on('interfaceSharingStateChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.off('interfaceSharingStateChange')

off(type: 'interfaceSharingStateChange', callback?: Callback\<{ type: SharingIfaceType, iface: string, state: SharingIfaceState }>): void

Unsubscribes from network sharing status changes of a specified NIC. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<{ type: [SharingIfaceType](#sharingifacetype), iface: string, state: SharingIfaceState(#sharingifacestate) }> | No  | Callback used for unsubscription.|

**Example**

```js
sharing.off('interfaceSharingStateChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.on('sharingUpstreamChange')

on(type: 'sharingUpstreamChange', callback: Callback\<NetHandle>): void

Subscribes to upstream network changes. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<NetHandle> | Yes  | Callback invoked when the upstream network changes.|

**Example**

```js
sharing.on('sharingUpstreamChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## sharing.off('sharingUpstreamChange')

off(type: 'sharingUpstreamChange', callback?: Callback\<NetHandle>): void

Unsubscribes from upstream network changes. This API uses an asynchronous callback to return the result.

**System API**: This is a system API.

**Required permissions**: ohos.permission.CONNECTIVITY_INTERNAL

**System capability**: SystemCapability.Communication.NetManager.NetSharing

**Parameters**

| Name  | Type                                   | Mandatory| Description      |
| -------- | --------------------------------------- | ---- | ---------- |
| type | string | Yes  | Event name.|
| callback | AsyncCallback\<NetHandle> | No  | Callback used for unsubscription.|

**Example**

```js
sharing.off('sharingUpstreamChange', (error, data) => {
    console.log(JSON.stringify(error));
    console.log(JSON.stringify(data));
});
```

## SharingIfaceState

Enumerates the network sharing states of an NIC.

**System API**: This is a system API.

**System capability**: SystemCapability.Communication.NetManager.NetSharing

| Name                 | Value  | Description                  |
| ------------------------ | ---- | ---------------------- |
| SHARING_NIC_SERVING    | 1 | Network sharing is in progress.|
| SHARING_NIC_CAN_SERVER | 2 | Network sharing is supported.|
| SHARING_NIC_ERROR      | 3 | An error occurred during network sharing.|

## SharingIfaceType

Enumerates the network sharing types of an NIC. 

**System API**: This is a system API.

**System capability**: SystemCapability.Communication.NetManager.NetSharing

| Name                 | Value  | Description                  |
| ------------------------ | ---- | ---------------------- |
| SHARING_WIFI       | 0 | Wi-Fi hotspot sharing.|
| SHARING_USB     | 1 | USB sharing (not supported currently).|
| SHARING_BLUETOOTH    | 2 | Bluetooth sharing.|