this script will retrieve the connection string for sending and receiving the message through Azure Servicebus

get_servicebus_connection_string.py

import requests
from azure.identity import DefaultAzureCredential

NAMESPACE_NAME = "namespace_name"
SUBSCRIPTION_ID = "subscription_id"
RESOURCE_GROUP = "resource-group"
AUTHORIZATION_RULE = "RootManageSharedAccessKey"
API_VERSION = "2021-11-01"


def get_servicebus_connection_string():

    credential = DefaultAzureCredential()
    token = credential.get_token("https://management.azure.com/.default")

    url = f"https://management.azure.com/subscriptions/{SUBSCRIPTION_ID}" \
          f"/resourceGroups/{RESOURCE_GROUP}/providers/Microsoft.ServiceBus/namespaces" \
          f"/{NAMESPACE_NAME}/AuthorizationRules/{AUTHORIZATION_RULE}/listKeys?api-version={API_VERSION}"
    auth_header = {'Authorization': 'Bearer ' + token.token, "Content-Type": "application/json"}
    response = requests.post(url=url, headers=auth_header)

    list_keys = response.json()

    connection_string = list_keys["primaryConnectionString"]

    return connection_string