[TOC]

### 如何使用？

`python版本：3.6 - 3.8`

`WebSocketAPI：建议websockets库版本为6.0`

#### 第一步：下载SDK，安装相关所需库

1.1 下载`python SDK`

* 将SDK目录`Clone`或者`Download`到本地，选择使用`okx-python-sdk-api-v5`即可

1.2 安装所需库

```python
pip install requests
pip install websockets==6.0
```

#### 第二步：配置个人信息

2.1 如果还未有API，可[点击](https://www.okx.com/account/users/myApi)前往官网进行申请

2.2 将各项信息在`example.py（RestAPI）`和`websocket_example.py（WebSocketAPI）`中填写

```python
api_key = ""
secret_key = ""
passphrase = ""
```

#### 第三步：调用接口

* RestAPI

  * 运行`example.py`

  * 解开相应方法的注释传参调用各接口即可

* WebSocketAPI

  * 运行`websocket_example.py`

  * 根据`公共频道`/`私有频道`/`交易`选择对应`url`、对应启动方法，传入相应参数即可

  ```python
  # WebSocket公共频道
  url = "wss://ws.okx.com:8443/ws/v5/public?brokerId=9999"
  
  # WebSocket私有频道
  url = "wss://ws.okx.com:8443/ws/v5/private?brokerId=9999"
  ```

  ```python
  # 公共频道 不需要登录（行情，持仓总量，K线，标记价格，深度，资金费率等）
  loop.run_until_complete(subscribe_without_login(url, channels))
  
  # 私有频道 需要登录（账户，持仓，订单等）
  loop.run_until_complete(subscribe(url, api_key, passphrase, seceret_key, channels))
  
  # 交易（下单，撤单，改单等）
  loop.run_until_complete(trade(url, api_key, passphrase, seceret_key, trade_param))
  ```

附言：

* 如果对API尚不了解，建议参考`OKx`官方[API文档](https://www.okx.com/docs-v5/zh/)

* 使用RestAPI的用户可以通过设置`example.py`文件下的flag参数来选择接入实盘或者模拟盘

* 使用WebSocketAPI的用户可以通过解开`websocket_example.py`文件下对应的url注释来选择接入实盘或者模拟盘

* RestAPI 提供了http2的请求方式,可参考http2_example.py

* 若使用`WebSocketAPI`遇到问题建议参考相关链接

  * `asyncio`、`websockets`文档/`github`：

        https://docs.python.org/3/library/asyncio-dev.html
        https://websockets.readthedocs.io/en/stable/intro.html
        https://github.com/aaugustin/websockets

  * 关于`code=1006`：

        https://github.com/Rapptz/discord.py/issues/1996
        https://github.com/aaugustin/websockets/issues/587



### How to use ?

`python version：3.6 - 3.8`

`WebSocketAPI： websockets package advise version 6.0`

#### Step 1: Download the SDK and install the necessary libraries

1.1 Download python SDK 

- `Clone` or `Download` the SDK directory to your local directory,choose to use `okx-python-sdk-api-v5`

1.2 Install the necessary libraries

```python
pip install requests
pip install websockets==6.0
```

#### Step 2: Configure Personal Information

2.1 If you have no API，[Click here](https://www.okx.com/account/users/myApi) to the official websit to apply for the API

2.2 Fill out all necessary informatiuon in `example.py（RestAPI）`  and `websocket_example.py（WebSocketAPI）`

```python 
api_key = ""
secret_key = ""
passphrase = ""
```

#### Step 3: Call API 

- RestAPI
  - Run `example.py`
  - Uncomment the corresponding method and then pass the arguments and call the interfaces
- WebSocketAPI
  - Run `websocket_example.py`
  - According to the `public channel`/`private channel`/`trade`, select the corresponding `url`, the corresponding start method, and pass in the corresponding parameters

```python 
# WebSocket public channel
url = "wss://ws.okx.com:8443/ws/v5/public?brokerId=9999"

# WebSocket private channel
url = "wss://ws.okx.com:8443/ws/v5/private?brokerId=9999"
```

```Python
# Not necessary for public channel to login （Instrument, Tickers, Index, Mark price, Order Book, Funding rate, etc）
loop.run_until_complete(subscribe_without_login(url, channels))

# necessary for private channel to login（Account,Positions, Order, etc）
loop.run_until_complete(subscribe(url, api_key, passphrase, seceret_key, channels))

# trade（Place Order, Cancel Order, Amend Order, etc）
loop.run_until_complete(trade(url, api_key, passphrase, seceret_key, trade_param))
```

P.S. 

- If  you know little about API, advise consulting the  offical [API document](https://www.okx.com/docs-v5/en/)

- User with RestAPI can configure parameter `flag` in `example.py` in  to choose to access to real trading or demo trading 

- User with WebSocketAPI can ucomment the corresponding `url`  to choose to access to real trading or demo trading 

- Rest API support request by http2, you can refer to http2_example  

- If you face any questions when using `WebSocketAPI`,you can consult related link

  - `asyncio`、`websockets` document/`github`：

    ```python 
    https://docs.python.org/3/library/asyncio-dev.html
    https://websockets.readthedocs.io/en/stable/intro.html
    https://github.com/aaugustin/websockets
    ```

  - About `code=1006`：

    ```python 
    https://github.com/Rapptz/discord.py/issues/1996
    https://github.com/aaugustin/websockets/issues/587
    ```