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python tuto2

In the previous chapter, we created our first app, when user sends "Hello,world!", the bot reply the same message.

Receive and send Bitcoin in Mixin Messenger

app.py

from mixin_ws_api import MIXIN_WS_API
from mixin_api import MIXIN_API
import mixin_config

import json
import time
from io import BytesIO
import base64
import gzip

try:
    import thread
except 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"]
        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!

Execute python app.py in the project directory.

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

Developer can send Bitcoin to their bots in message panel. The bot receive the Bitcoin and then send back immediately. transfer and tokens

User can pay 0.001 Bitcoin to bot by click the button and the 0.001 Bitcoin will be refunded in 1 second,In fact, user can pay any coin either. pay-link

Source code summary

elif categoryindata == "SYSTEM_ACCOUNT_SNAPSHOT":
    rdJs = json.loads(realData)
    if ( float(rdJs["amount"]) > 0 ):
        mixin_api.transferTo(userId, rdJs["asset_id"], rdJs["amount"], "")
  • rdJs["amount"] is negative if bot sends Bitcoin to user successfully.
  • rdJs["amount"] is positive if bot receive Bitcoin from user. Call mixin_api.transferTo to refund the coins back to user.

Advanced usage

coming soon!

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