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!4207 【OpenHarmony开源贡献者计划2022】connectivity英文格式及表达问题 

Merge pull request !4207 from king_he/0521-a
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en/application-dev/connectivity/http-request.md
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The following table describes the related APIs.
| API | Description |
| ----------------------------------------- | ----------------------------------- |
| createHttp() | Creates an HTTP request. |
| request() | Initiates an HTTP request to a given URL. |
| destroy() | Destroys an HTTP request. |
| API | Description |
| ----------------------------------------- | --------------------------------------------------------- |
| createHttp() | Creates an HTTP request. |
| request() | Initiates an HTTP request to a given URL. |
| destroy() | Destroys an HTTP request. |
| on(type: 'headersReceive') | Registers an observer for HTTP Response Header events. |
| off(type: 'headersReceive') | Unregisters the observer for HTTP Response Header events.|
| off(type: 'headersReceive') | Unregisters the observer for HTTP Response Header events. |
## How to Develop
1. Import the required HTTP module.
2. Create an **HttpRequest** object.
3. (Optional) Listen for HTTP Response Header events.
4. Initiates an HTTP request to a given URL.
4. Initiate an HTTP request to a given URL.
5. (Optional) Process the HTTP Response Header event and the return result of the HTTP request.
```js
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en/application-dev/connectivity/ipc-rpc-development-guideline.md
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## Available APIs<a name="section1633115419401"></a>
**Table 1** Native IPC APIs
**Table 1** Native IPC APIs
<a name="table178849240013"></a>
<table><thead align="left"><tr id="row6884924608"><th class="cellrowborder" valign="top" width="14.12141214121412%" id="mcps1.2.4.1.1"><p id="p98846241706"><a name="p98846241706"></a><a name="p98846241706"></a>Class/Interface</p>
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**Using Native APIs**
1. Define the IPC interface **ITestAbility**.
1. Define the IPC interface **ITestAbility**.
**ITestAbility** inherits the IPC base class **IRemoteBroker** and defines descriptors, functions, and message code. The functions need to be implemented on both the proxy and stub.
**ITestAbility** inherits the IPC base class **IRemoteBroker** and defines descriptors, functions, and message code. The functions need to be implemented on both the proxy and stub.
```
class ITestAbility : public IRemoteBroker {
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};
```
2. Define and implement service provider **TestAbilityStub**.
2. Define and implement service provider **TestAbilityStub**.
This class is related to the IPC framework and needs to inherit **IRemoteStub<ITestAbility\>**. You need to override **OnRemoteRequest** on the stub to receive requests from the proxy.
This class is related to the IPC framework and needs to inherit **IRemoteStub<ITestAbility\>**. You need to override **OnRemoteRequest** on the stub to receive requests from the proxy.
```
class TestAbilityStub : public IRemoteStub<ITestAbility> {
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}
```
3. Define the **TestAbility** class that implements functions for the stub.
3. Define the **TestAbility** class that implements functions for the stub.
```
class TestAbility : public TestAbilityStub {
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}
```
4. Define and implement **TestAbilityProxy**.
4. Define and implement **TestAbilityProxy**.
This class is implemented on the proxy and inherits **IRemoteProxy<ITestAbility\>**. You can call **SendRequest** to send a request to the stub and expose the capabilities provided by the stub.
This class is implemented on the proxy and inherits **IRemoteProxy<ITestAbility\>**. You can call **SendRequest** to send a request to the stub and expose the capabilities provided by the stub.
```
class TestAbilityProxy : public IRemoteProxy<ITestAbility> {
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5. Register and start an SA.
Call **AddSystemAbility** to register the **TestAbilityStub** instance of the SA with **SystemAbilityManager**. The registration parameters vary depending on whether the **SystemAbilityManager** resides on the same device as the SA.
Call **AddSystemAbility** to register the **TestAbilityStub** instance of the SA with **SystemAbilityManager**. The registration parameters vary depending on whether the **SystemAbilityManager** resides on the same device as the SA.
```
// Register the TestAbilityStub instance with the SystemAbilityManager on the same device as the SA.
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6. Obtain the SA.
Call the **GetSystemAbility** function of the **SystemAbilityManager** class to obtain the **IRemoteObject** for the SA, and create a **TestAbilityProxy** instance.
Call the **GetSystemAbility** function of the **SystemAbilityManager** class to obtain the **IRemoteObject** for the SA, and create a **TestAbilityProxy** instance.
```
// Obtain the proxy of the SA registered on the local device.
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en/application-dev/connectivity/socket-connection.md
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The Socket connection function is mainly implemented by the Socket module. The following table describes the related APIs.
| API| Description|
| API| Description |
| -------- | -------- |
| constructUDPSocketInstance() | Creates a **UDPSocket** object.|
| constructTCPSocketInstance() | Creates a **TCPSocket** object.|
| bind() | Binds the IP address and port number.|
| constructUDPSocketInstance() | Creates a **UDPSocket** object. |
| constructTCPSocketInstance() | Creates a **TCPSocket** object. |
| bind() | Binds the IP address and port number. |
| send() | Sends data.|
| close() | Closes a Socket connection.|
| getState() | Obtains the Socket connection status.|
| connect() | Connects to the specified IP address and port. This function is supported only for TCP.|
| getRemoteAddress() | Obtains the peer address of the Socket connection. This function is supported only for TCP. The **connect** API must have been called before you use this API.|
| on(type:&nbsp;'message') | Enables listening for **message** events of the Socket connection.|
| off(type:&nbsp;'message') | Disables listening for **message** events of the Socket connection.|
| on(type:&nbsp;'close') | Enables listening for **close** events of the Socket connection.|
| off(type:&nbsp;'close') | Disables listening for **close** events of the Socket connection.|
| on(type:&nbsp;'error') | Enables listening for **error** events of the Socket connection.|
| off(type:&nbsp;'error') | Disables listening for **error** events of the Socket connection.|
| close() | Closes a Socket connection. |
| getState() | Obtains the Socket connection status. |
| connect() | Connects to the specified IP address and port. This function is supported only for TCP. |
| getRemoteAddress() | Obtains the peer address of the Socket connection. This function is supported only for TCP. The **connect** API must have been called before you use this API. |
| on(type:&nbsp;'message') | Enables listening for **message** events of the Socket connection. |
| off(type:&nbsp;'message') | Disables listening for **message** events of the Socket connection. |
| on(type:&nbsp;'close') | Enables listening for **close** events of the Socket connection. |
| off(type:&nbsp;'close') | Disables listening for **close** events of the Socket connection. |
| on(type:&nbsp;'error') | Enables listening for **error** events of the Socket connection. |
| off(type:&nbsp;'error') | Disables listening for **error** events of the Socket connection. |
| on(type:&nbsp;'listening') | Enables listening for **listening** events of the UDPSocket connection. |
| off(type:&nbsp;'listening') | Disables listening for **listening** events of the UDPSocket connection. |
| on(type:&nbsp;'connect') | Enables listening for **connect** events of the TCPSocket connection. |
| off(type:&nbsp;'connect') | Disables listening for **connect** events of the TCPSocket connection.|
| off(type:&nbsp;'connect') | Disables listening for **connect** events of the TCPSocket connection. |
## How to Develop
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en/application-dev/connectivity/websocket-connection.md
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The WebSocket connection function is mainly implemented by the WebSocket module. To use related APIs, you must declare the **ohos.permission.INTERNET** permission. The following table describes the related APIs.
| API| Description|
| API | Description |
| -------- | -------- |
| createWebSocket() | Creates a WebSocket connection.|
| connect() | Establishes a WebSocket connection to a given URL.|
| send() | Sends data through the WebSocket connection.|
| close() | Closes a WebSocket connection.|
| on(type:&nbsp;'open') | Enables listening for **open** events of a WebSocket connection.|
| off(type:&nbsp;'open') | Disables listening for **open** events of a WebSocket connection.|
| on(type:&nbsp;'message') | Enables listening for **message** events of a WebSocket connection.|
| off(type:&nbsp;'message') | Disables listening for **message** events of a WebSocket connection.|
| on(type:&nbsp;'close') | Enables listening for **close** events of a WebSocket connection.|
| off(type:&nbsp;'close') | Disables listening for **close** events of a WebSocket connection.|
| on(type:&nbsp;'error') | Enables listening for **error** events of a WebSocket connection.|
| off(type:&nbsp;'error') | Disables listening for **error** events of a WebSocket connection.|
| createWebSocket() | Creates a WebSocket connection. |
| connect() | Establishes a WebSocket connection to a given URL. |
| send() | Sends data through the WebSocket connection. |
| close() | Closes a WebSocket connection. |
| on(type:&nbsp;'open') | Enables listening for **open** events of a WebSocket connection. |
| off(type:&nbsp;'open') | Disables listening for **open** events of a WebSocket connection. |
| on(type:&nbsp;'message') | Enables listening for **message** events of a WebSocket connection. |
| off(type:&nbsp;'message') | Disables listening for **message** events of a WebSocket connection. |
| on(type:&nbsp;'close') | Enables listening for **close** events of a WebSocket connection. |
| off(type:&nbsp;'close') | Disables listening for **close** events of a WebSocket connection. |
| on(type:&nbsp;'error') | Enables listening for **error** events of a WebSocket connection. |
| off(type:&nbsp;'error') | Disables listening for **error** events of a WebSocket connection. |
## How to Develop
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