> - The APIs of this module are no longer maintained since API version 6. You are advised to use [`@ohos.net.http`](js-apis-http.md) instead.
>
> - The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
| data | string \| Object | No | Request parameter, which can be a string or a JSON object. For details, see Relationship between data and Content-Type. |
| header | Object | No | Request header. |
| method | string | No | Request method. The default value is **GET**. The value can be **OPTIONS**, **GET**, **HEAD**, **POST**, **PUT**, **DELETE **or **TRACE**. |
| responseType | string | No | Response type. The return type can be text or JSON. By default, the return type is determined based on **Content-Type** in the header returned by the server. For details, see return values of the success callback. |
| success | Function | No | Called when the network data is obtained successfully. |
| fail | Function | No | Called when the network data fails to be obtained. |
| complete | Function | No | Called when the execution is complete. |
**Table1** Relationship between data and Content-Type
| data | Content-Type | Description|
| url | string | Yes| Resource URL.|
| data | string \| Object | No| Request parameter, which can be a string or a JSON object. For details, see the mapping between **data** and **Content-Type**.|
| header | Object | No| Request header.|
| method | string | No| Request method. The default value is **GET**. The value can be **OPTIONS**, **GET**, **HEAD**, **POST**, **PUT**, **DELETE **or **TRACE**.|
| responseType | string | No| Response type. The return type can be text or JSON. By default, the return type is determined based on **Content-Type** in the header returned by the server. For details, see return values in the **success** callback.|
| success | Function | No| Called when the data is obtained successfully.|
| fail | Function | No| Called when the data failed to be obtained.|
| complete | Function | No| Called when the execution is complete.|
| string | Not set| The default value of Content-Type is **text/plain**, and the value of data is used as the request body.|
| string | Any type| The value of data is used as the request body.|
| Object | Not set| The default value of **Content-Type** is **application/x-www-form-urlencoded**. The **data** value is encoded based on the URL rule and appended in the request body.|
| Object | application/x-www-form-urlencoded | The value of data is encoded based on the URL rule and is used as the request body.|
The following values will be returned when data is successfully obtained.
Return values in the **success** callback
| Parameter | Type | Description |
| Name| Type| Description|
| -------- | -------- | -------- |
| code | number | Server status code. |
| data | string \| Object | The type of the returned data is determined by **responseType**. For details, see Relationship between responseType and data returned by the success function. |
| data | string \| Object | The type of the returned data is determined by **responseType**. For details, see the mapping between **responseType** and **data** in **success** callback.|
| headers | Object | All headers in the response from the server.|
**Table2** Relationship between responseType and data returned by the success function
**Table 2** Mapping between responseType and data in success callback
| N/A| string | When the type in the header returned by the server is **text/\***, **application/json**, **application/javascript**, or **application/xml**, the value is the text content.|
> HTTPS is supported by default. To support HTTP, you need to add **"network"** to the **config.json** file, and set the attribute **"cleartextTraffic"** to **true**.
> HTTPS is supported by default. To support HTTP, you need to add **"network"** to the **config.json** file, and set the attribute **"cleartextTraffic"** to **true**. That is:
