Mixin Network[db:标签]是一个免费的 极速的端对端加密数字货币交易系统. 在本章中，你可以按教程在Mixin Messenger中创建一个bot来接收用户消息, 学到如何给机器人转比特币 或者 让机器人给你转比特币.
课程简介
- 创建一个接受消息的机器人
- 机器人接受比特币并立即退还用户
创建一个接受消息的机器人
通过本教程，你将学会如何用Python创建一个机器人APP,让它能接受消息。
Python 3 安装:
本教程基于Python 3.7.2, 所以你需要安装Python 3.7.2 或 以上的版本. on macOS
brew upgradebrew install python@3复制代码on Ubuntu, 从第三方的APT源中安装.
sudo apt updatesudo apt install software-properties-commonsudo add-apt-repository ppa:deadsnakes/ppa复制代码当出现下面的提示时，按\”回车\”继续.
Press [ENTER] to continue or Ctrl-c to cancel adding it.复制代码重新更新一次apt源, 再安装python3.7, python3.7-venv
sudo apt updatesudo apt install python3.7 python3.7-venvsudo ln -s /usr/bin/python3.7 /usr/bin/python3复制代码检查安装是否成功了，需要检查python3与python3-venv, 正确的提示如下:
$ python3 -VPython 3.7.2复制代码root@n2:~ python3 -m venv -husage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear] [--upgrade] [--without-pip] [--prompt PROMPT] ENV_DIR [ENV_DIR ...]Creates virtual Python environments in one or more target directories.positional arguments: ENV_DIR A directory to create the environment in.optional arguments: -h, --help show this help message and exit --system-site-packages Give the virtual environment access to the system site-packages dir. --symlinks Try to use symlinks rather than copies, when symlinks are not the default for the platform. --copies Try to use copies rather than symlinks, even when symlinks are the default for the platform. --clear Delete the contents of the environment directory if it already exists, before environment creation. --upgrade Upgrade the environment directory to use this version of Python, assuming Python has been upgraded in-place. --without-pip Skips installing or upgrading pip in the virtual environment (pip is bootstrapped by default) --prompt PROMPT Provides an alternative prompt prefix for this environment.
Once an environment has been created, you may wish to activate it, e.g. bysourcing an activate script in its bin directory复制代码
创建 mixin_labs-python-bot 项目
你首先需要创建项目目录，初始化\”虚拟环境\”,然后安装需要的软件包.
mkdir mixin_labs-python-botcd mixin_labs-python-botpython3 -m venv ./复制代码在 python3 -m venv 指令完成之后， 项目目录如下：
wenewzha:mixin_labs-python-bot wenewzhang$ lsbinincludelibpyvenv.cfg复制代码当\”虚拟环境\”创建成功后，需要激活它, 通过执行bin目录下相应的activate文件完成.
wenewzha:mixin_labs-python-bot wenewzhang$ source ./bin/activate(mixin_labs-python-bot) wenewzha:mixin_labs-python-bot wenewzhang$复制代码成功激活后，可以直接执行python或pip了，这时，不再需要输入他们的完整路径了.
在\”虚拟环境\”里安装必需的包
创建一个必需包的list
requirements.txt
cryptography==2.4.2pycparser==2.19pycryptodome==3.7.2PyJWT==1.7.1python-dateutil==2.7.5PyYAML==3.13requests==2.21.0websocket-client==0.54.0复制代码通过pip升级pip包本身, 并安装必需包.
pip install --upgrade pippip install -r requirements.txt复制代码下载 Mixin Network的python 3的API
wget https://github.com/includeleec/mixin-python3-sdk/raw/master/mixin_ws_api.pywget https://github.com/includeleec/mixin-python3-sdk/raw/master/mixin_api.pywget https://github.com/includeleec/mixin-python3-sdk/raw/master/mixin_config.py复制代码你好，世界!
创建第一个机器人APP
按下面的提示，到mixin.one创建一个APPtutorial.
生成相应的参数
记下这些生成的参数它们将用于mixin_config.py中. <figure><figcaption></figcaption></figure> 在项目目录下，创建mixin_config.py,将生成的参数，替换成你的！
mixin_config.py
client_id= \'ed882a39-0b0c-4413-bbd9-221cdeee56bf\'client_secret = \'8d7ec7b9c8261b6c7bd6309210496ca4b72bce9efc7e49be14a428ce49ff7202\'pay_pin = \'599509\'pay_session_id = \'bd53b6a4-e79a-49e5-ad04-36da518354f6\'pin_token = \"nVREh0/Ys9vzNFCQT2+PKcDN2OYAUSH8CidwHqDQLOCvokE7o6wtvLypjW9iks/RsnBM6N4SPF/P3bBW254YHGuDZXhitDEWOGkXs7v8BxMQxf+9454qTkMSpR9xbjAzgMXnSyHrNVoBtsc/Y+NvemB3VxPfsCOFHasiMqAa5DU=\"
private_key = \"\"\"-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----\"\"\"复制代码
需要替换的参数包括： client_id, client_secret, pay_pin, pin_token, pay_session_id, private key. 创建 app-mini.py 文件, 内容如下:
app-mini.py
from mixin_ws_api import MIXIN_WS_APIfrom mixin_api import MIXIN_APIimport mixin_configimport jsonimport timefrom io import BytesIOimport base64import gzip
try: import threadexcept ImportError: import _thread as thread
def on_message(ws, message): inbuffer = BytesIO(message)
f = gzip.GzipFile(mode=\"rb\", fileobj=inbuffer) rdata_injson = f.read() rdata_obj = json.loads(rdata_injson) print(\"-------json object begin---------\") print(rdata_obj) print(\"-------json object end---------\") action = rdata_obj[\"action\"]
if rdata_obj[\"data\"] is not None: print(\"data in message:\",rdata_obj[\"data\"])
if rdata_obj[\"data\"] is not None and rdata_obj[\"data\"][\"category\"] is not None: print(rdata_obj[\"data\"][\"category\"])
if action == \"CREATE_MESSAGE\":
data = rdata_obj[\"data\"] msgid = data[\"message_id\"] typeindata = data[\"type\"] categoryindata = data[\"category\"] userId = data[\"user_id\"] conversationId = data[\"conversation_id\"] dataindata = data[\"data\"]
realData = base64.b64decode(dataindata)
MIXIN_WS_API.replayMessage(ws, msgid)
if \'error\' in rdata_obj: return
if categoryindata == \"PLAIN_TEXT\": realData = realData.decode(\'utf-8\') print(\"dataindata\",realData) MIXIN_WS_API.sendUserText(ws, conversationId, userId, realData)
if __name__ == \"__main__\":
mixin_api = MIXIN_API(mixin_config)
mixin_ws = MIXIN_WS_API(on_message=on_message)
mixin_ws.run()复制代码
运行 app-mini.py, 记得要先激活“虚拟环境”哦!
(mixin_labs-python-bot) wenewzha:mixin_labs-python-bot wenewzhang$ python app-mini.py...复制代码如果一切正常，将会有如下提示：
(mixin_labs-python-bot) wenewzha:mixin_labs-python-bot wenewzhang$ python app-mini.pyws open-------json object begin---------{\'id\': \'1c798948-30eb-11e9-a20e-20c9d08850cd\', \'action\': \'LIST_PENDING_MESSAGES\'}-------json object end---------复制代码在手机安装 Mixin Messenger,增加机器人为好友,(比如这个机器人是7000101639) 然后发送消息给它,效果如下! <figure><figcaption></figcaption></figure>
源代码解释
WebSocket是建立在TCP基础之上的全双工通讯方式，我们需要建立一个loop循环来维持通迅。
if __name__ == \"__main__\": mixin_api = MIXIN_API(mixin_config) mixin_ws = MIXIN_WS_API(on_message=on_message) mixin_ws.run()复制代码
每接收到一个消息，需要按消息编号(message_id)给服务器回复一个\”已读\”的消息,避免服务器在机器人重新登入后，再次发送处理过的消息！
MIXIN_WS_API.replayMessage(ws, msgid)复制代码机器人程序完整回复用户的信息
if categoryindata == \"PLAIN_TEXT\": realData = realData.decode(\'utf-8\') print(\"dataindata\",realData) MIXIN_WS_API.sendUserText(ws, conversationId, userId, realData) 复制代码Mixin Messenger支持的消息类型很多，具体可到下面链接查看: WebSocket消息类型.
完成
现在你的机器人APP运行起来了，你打算如何改造你的机器人呢？ 完整的代码在这儿
