1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
import sys
import logging
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 digital twin
#
# 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()
# Create logger
logger = logging.getLogger('azure')
logger.setLevel(logging.DEBUG)
handler = logging.StreamHandler(stream=sys.stdout)
logger.addHandler(handler)
# Create service client and enable logging for all operations
service_client = DigitalTwinsClient(url, credential, logging_enable=True)
# DigitalTwinId from the samples:
# BuildingTwin
# FloorTwin
# HVACTwin
# RoomTwin
digital_twint_id = "<DIGITAL_TWIN_ID>"
# Get twin
digital_twin = service_client.get_digital_twin(digital_twint_id)
print(digital_twin)
except HttpResponseError as e:
print("\nThis sample has caught an error. {0}".format(e.message))
|
