第二课: 机器人接受比特币并立即退还用户

按本篇教程后学习后完成后，你的机器人将会接受用户发送过来的加密货币，然后立即转回用户。

app.py

from mixin_ws_api import MIXIN_WS_APIfrom mixin_api import MIXIN_APIimport mixin_configimport jsonimport timefrom io import BytesIOimport base64import gziptry:    import threadexcept ImportError:    import _thread as threaddef 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"]        created_at = data["created_at"]        updated_at = data["updated_at"]        realData = base64.b64decode(dataindata)        MIXIN_WS_API.replayMessage(ws, msgid)        print('userId', userId)        print("created_at",created_at)        if categoryindata == "PLAIN_TEXT":            realData = realData.decode('utf-8')            print("dataindata",realData)            MIXIN_WS_API.sendUserText(ws, conversationId, userId, realData)        elif categoryindata == "SYSTEM_ACCOUNT_SNAPSHOT":            rdJs = json.loads(realData)            if ( float(rdJs["amount"]) > 0 ):                mixin_api.transferTo(userId, rdJs["asset_id"], rdJs["amount"], "")if __name__ == "__main__":    mixin_api = MIXIN_API(mixin_config)    mixin_ws = MIXIN_WS_API(on_message=on_message)    mixin_ws.run()

Hello Bitcoin!

在项目目录下，执行 python app.py

cd mixin_labs-python-botsource ./bin/activate(mixin_labs-python-bot) wenewzha:mixin_labs-python-bot wenewzhang$ python app.pyws open-------json object begin---------{'id': 'fd6ce766-331a-11e9-92a9-20c9d08850cd', 'action': 'LIST_PENDING_MESSAGES'}-------json object end---------

开发者可以通过消息面板，给机器人转比特币，当机器人收到比特币后，马上返还给用户！

事实上，用户可以发送任意的币种给机器人，它都能马上返还！

源代码解释

elif categoryindata == "SYSTEM_ACCOUNT_SNAPSHOT":    rdJs = json.loads(realData)    if ( float(rdJs["amount"]) > 0 ):        mixin_api.transferTo(userId, rdJs["asset_id"], rdJs["amount"], "")

如果机器人收到币，rdJs["amount"] 大于零；如果机器人支付币给用户，接收到的消息是一样的，唯一不同的是,rdJs["amount"]是一个负数.

高级用法

coming soon!