send message to wecom (企业微信) by phone number

send.py

#!/bin/env python3
## the reason why i use urllib is to minimize dependency requiremnts
## the reason i dont user serverchan (https://sc.ftqq.com/) is that i want a multiuser support
from urllib import request
import sys
import json

## Please Change xxxxxx to the value you have
CORPID="xxxxxx"
MSGSECRET="xxxxxx"
PHONE="xxxxxx"
HEADERS={'Content-Type': 'application/json','User-Agent':'fake'}
AGENTID=xxxxxx

## Variable SERVER and TEXT are just to construct the message to be sent, you can modify this part
try:
    TEXT=sys.argv[1]
except:
    TEXT="done"
SERVER="LLAB"

BASEURL="https://qyapi.weixin.qq.com/cgi-bin/"

## get token
gettoken_url=BASEURL+"gettoken?corpid={0}&corpsecret={1}".format(CORPID,MSGSECRET)
req=request.Request(url=gettoken_url,headers=HEADERS)
token_resp=request.urlopen(req).read().decode(encoding='utf-8')
token_json=json.loads(token_resp)
TOKEN=token_json['access_token']

## get userid by phone
content={
  "mobile": PHONE
}
content=json.dumps(content).encode(encoding="utf-8")
getuserid_url=BASEURL+"user/getuserid?access_token={0}".format(TOKEN)
req=request.Request(url=getuserid_url,data=content,headers=HEADERS)
userid_json=json.loads(
  request.urlopen(req).read().decode(encoding='utf-8')
)
CHATID=userid_json['userid']


## real send

### construct message
CONTENT="server: "+SERVER+"\n\n"+TEXT

send_url=BASEURL+"message/send?access_token={0}".format(TOKEN)
## change xxxx to your own id
content={
  'touser':CHATID,
  'msgtype':'text',
  'agentid': AGENTID,
  'text':{
    'content': CONTENT
  }
}
content=json.dumps(content).encode(encoding="utf-8")
req=request.Request(url=send_url,data=content,headers=HEADERS)
print(request.urlopen(req).read().decode(encoding='utf-8'))