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# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
from azure.identity import DefaultAzureCredential
from azure.core.exceptions import HttpResponseError
from azure.digitaltwins.core import DigitalTwinsClient
# Simple example of how to:
# - create a DigitalTwins Service Client using the DigitalTwinsClient constructor
# - get eventRoute
#
# Preconditions:
# - Environment variables have to be set
# - DigitalTwins enabled device must exist on the ADT hub
try:
# DefaultAzureCredential supports different authentication mechanisms and determines
# the appropriate credential type based of the environment it is executing in.
# It attempts to use multiple credential types in an order until it finds a working credential.
# - AZURE_URL: The tenant ID in Azure Active Directory
url = os.getenv("AZURE_URL")
# DefaultAzureCredential expects the following three environment variables:
# - AZURE_TENANT_ID: The tenant ID in Azure Active Directory
# - AZURE_CLIENT_ID: The application (client) ID registered in the AAD tenant
# - AZURE_CLIENT_SECRET: The client secret for the registered application
credential = DefaultAzureCredential()
service_client = DigitalTwinsClient(url, credential)
# Get event route
event_route_id = "<EVENT_ROUTE_ID>"
event_route = service_client.get_event_route(event_route_id)
print('EventRoute:')
print(event_route)
except HttpResponseError as e:
print("\nThis sample has caught an error. {0}".format(e.message))
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