ZABBIX API batch delete a template of the host

example ： Unlink and clean up the same template for all hosts in a host group

What needs to be revised ：

1. Variable Groupid ： Define the host group that needs to delete the template id

2. Variable Templateid ： Define the template to unlink and clean up id

3. The initialization information is modified according to the personal environment

import json
import urllib.request

Hostids = []
Groupid = 4
Templateid = 10001


class ZabbixApi:
    def __init__(self):  #  Initialization information   modify 
        self.url = 'http://192.10.xx.xx/api_jsonrpc.php'
        self.user = 'Admin'
        self.passwd = 'zabbix'
        self.header = {"Content-Type": "application/json-rpc"}
        # self.auth = self.UserLogin()

    def UserLogin(self):  # api Login operation 
        data = {
            "jsonrpc": "2.0",
            "method": "user.login",
            "params": {
                "user": self.user,
                "password": self.passwd
            },
            "id": 0
        }
        return self.UrlRequest(data)

    def UrlRequest(self, data):  ##
        request = urllib.request.Request(self.url, json.dumps(data).encode('utf-8'), self.header)
        result = urllib.request.urlopen(request)
        response = json.loads(result.read().decode('utf-8'))
        return response

    def GetHostsid(self):  #  Get all of the host group hostid
        data = {
            "jsonrpc": "2.0",
            "method": "hostgroup.get",
            "params": {
                "groupids": Groupid,
                "selectHosts": "hostid"
            },
            "auth": token,
            "id": 1
        }
        return self.UrlRequest(data)

    def DeleteTemplate(self):  #  Unlink and clean up the template 
        data = {
            "jsonrpc": "2.0",
            "method": "host.massremove",
            "params": {
                "hostids": Hostids,
                "templateids_clear": Templateid
            },
            "auth": token,
            "id": 1
        }
        self.UrlRequest(data)
        return " Template cleanup completed !"


if __name__ == '__main__':
    response = ZabbixApi().UserLogin()
    token = response['result']
    print(f' Identity token is "{token}"')

    info = ZabbixApi().GetHostsid()
    hostids = info['result'][0]['hosts']
    num = len(hostids)
    for i in range(num):
        Hostids.append(hostids[i]['hostid'])

    txt = ZabbixApi().DeleteTemplate()
    print(txt)