好吧,伙计们,所以这就是我的问题。
我正在开发一个带有打包机器人的Slack应用程序,允许用户在Slack中玩游戏。我已经成功构建了机器人并根据API guidelines将其与应用程序打包在一起。一旦我发现了Interactive Messages功能,我决定实现所述功能,以便更加用户友好地使用游戏。
交互式消息功能允许您使用按钮发布消息,用户可以单击该按钮来调用操作。我的机器人脚本,我们称之为bot.py
,提示用户(使用Slack chat.postMessage功能)包含一些消息,可以从中选择。这个脚本有一个类(我知道它应该更加模块化,但所有时间都很快),它打开了一个通过Slack RTM API进行通信的Web套接字。因此,当脚本运行时,它始终是" listen"对于来自频道中用户的命令,如下所示:@botname command
。脚本的一部分调用了这个"总是在监听"州看起来像这样:
#bot.py
...
if slack_client.rtm_connect():
print("MYBOT v1.0 connected and running!")
while True:
command, channel, user = self.parse_slack_output(slack_client.rtm_read())
if command and channel:
if channel not in self.channel_ids_to_name.keys():
#this (most likely) means that this channel is a PM with the bot
self.handle_private_message(command, user)
else:
self.handle_command(command, channel, user)
time.sleep(READ_WEBSOCKET_DELAY)
else:
print("Connection failed. Invalid Slack token or bot ID?")
这一切都很好。现在,让我们说用户已经使用命令成功创建游戏实例并开始播放。在某个时刻,系统会提示用户输入特朗普套装:
#bot.py
...
attachments =[{
"title":"Please select index for trump suit:",
"fallback":"Your interface does not support interactive messages.",
"callback_id":"prompt_trump_suit",
"attachment_type":"default",
"actions":
[{"name":"diamonds","text":":diamonds:","type":"button","value":"0"},
{"name":"clubs","text":":clubs:","type":"button","value":"1"},
{"name":"hearts","text":":hearts:","type":"button","value":"2"},
{"name":"spades","text":":spades:","type":"button","value":"3"}]
}]
slack.chat.post_message(
channel=player_id,
as_user=True,
attachments=attachments
)
互动讯息looks like this。单击此消息中的一个按钮的操作通过HTTP POST将有效负载发送到Web服务器。我在项目中的另一个脚本(我们称之为app.py
)是一个Flask脚本,当用户单击其中一个按钮时,该脚本成功接收此POST请求。接收POST请求的脚本部分如下所示:
#app.py
...
# handles interactive button responses for mybot
@app.route('/actions', methods=['POST'])
def inbound():
payload = request.form.get('payload')
data = json.loads(payload)
token = data['token']
if token == SLACK_VERIFICATION_TOKEN:
print 'TOKEN is good!'
response_url = data['response_url']
channel_info = data['channel']
channel_id = channel_info['id']
user_info = data['user']
user_id = user_info['id']
user_name = user_info['name']
actions = data['actions'][0]
value = actions['value']
print 'User sending message: ',user_name
print "Value received: ",value
return Response(), 200
单击该按钮时,我得到预期的输出:
TOKEN is good!
User sending message: my_username
Value received: 3
所以到目前为止一切都很成功。现在,我想要做的是获取POST信息并使用它来调用处理特朗普套装选择的bot.py
脚本中的函数。问题是,如果我要调用该函数,让我们调用它handle_trump_suit_selection()
,我首先必须在Bot()
文件中实例化一个app.py
对象,这当然是不会按预期工作,因为该函数将使用新的Bot()
实例调用,因此不会与当前游戏处于相同的状态。
那么如何才能将POST信息恢复到Bot()
中所需的bot.py
实例以进行进一步处理?我是Python的OOP新手,特别是Flask和Slack API的新手,所以对我来说很容易;)。
提前致谢。
答案 0 :(得分:1)
<强> TL; DR:强> 基本上,解决方案是创建一个Celery任务,使用Slack Events API从Flask应用程序实例化bot实例。您将任务设置为在输入所需输入后启动,立即将所需的Response(200)返回Slack,同时启动bot脚本(启动RTM API Web套接字)并行启动。
细节: 因此,如上所述,事实证明所需要的是a queuing service of some sort。我最终选择Celery与Heroku(我主持Slack应用程序)及其易于理解的文档集成相对容易。
以这种方式开发Slack应用程序需要设置并使用Slack Events API从发布消息的Slack通道接收命令(&#34;播放my_game&#34;在此示例中)。程序的app(app.py)部分侦听此事件,当输入与您正在查找的内容匹配时,它会并行启动Celery任务(在tasks.py中,实例化Bot()本例中的bot.py实例)。 :)现在,机器人可以使用Slack RTM API和Slack Events API进行侦听和响应。这允许您在Slack框架内构建丰富的应用程序/服务。
如果您要设置类似的东西,下面是我的项目布局和重要的代码详细信息。随意使用它们作为模板。
项目布局:
<强> __ INIT __ PY:强>
from celery import Celery
app = Celery('tasks')
import os
app.conf.update(BROKER_URL=os.environ['RABBITMQ_BIGWIG_URL']) # Heroku Celery broker
<强> my_app.py:强>
from flask import Flask, request, Response, render_template
import app
from app import tasks
app = Flask(__name__)
@app.route('/events', methods=['POST'])
def events():
"""
Handles the inbound event of a post to the main Slack channel
"""
data = json.loads(request.data)
try:
for k, v in data['event'].iteritems():
ts = data['event']['ts']
channel = data['event']['channel']
user_id = data['event']['user']
team_id = data['team_id']
if 'play my_game' in str(v):
tasks.launch_bot.delay(user_id, channel, ts, team_id) # launch the bot in parallel
return Response(), 200
except Exception as e:
raise
<强> bot.py:强>
from slackclient import SlackClient
class Bot():
def main():
# opening the Slack web-socket connection
READ_WEBSOCKET_DELAY = 1 # 1 second delay between reading from firehose
if self.slack_client.rtm_connect():
while True:
command, channel, user, ts = self.parse_slack_output()
if command and channel:
if channel not in self.channel_ids_to_name.keys():
# this (most likely) means that this channel is a PM with the bot
self.handle_private_message(command, user, ts)
else:
self.handle_command(command, channel, user, ts)
time.sleep(READ_WEBSOCKET_DELAY)
<强> tasks.py:强>
import bot
from bot import Bot
from app import app
@app.task
def launch_bot(user_id, channel, ts, team_id):
'''
Instantiates the necessary objects to play a game
Args:
[user_id] (str) The id of the user from which the command was sent
[channel] (str) The channel the command was posted in
[ts] (str) The timestamp of the command
'''
print "launch_bot(user_id,channel)"
app.control.purge()
bot = Bot()
bot.initialize(user_id, channel)
bot.main()
Procfile(如果使用Heroku):
web: gunicorn --pythonpath app my_app:app
worker: celery -A app.tasks worker -B --loglevel=DEBUG
如果您有任何问题,请告诉我。这花了我一点时间才弄明白,如果你正在敲打这个,我很乐意帮助你。