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[EventHubs] Get IoT Hub Name from Redirect Address in sample #19314

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Jun 23, 2021
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[EventHubs] Get IoT Hub Name from Redirect Address in sample #19314

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extract iot hub name from redirect address
swathipil Jun 17, 2021
ba91b5b
update
swathipil Jun 17, 2021
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swathipil Jun 23, 2021
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8 changes: 8 additions & 0 deletions sdk/eventhub/azure-eventhub/samples/async_samples/iot_hub_connection_string_receive_async.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
"""

import os
import re
import time
from base64 import b64encode, b64decode
from hashlib import sha256
Expand Down Expand Up @@ -80,6 +81,13 @@ def convert_iothub_to_eventhub_conn_str(iothub_conn_str):
# Once a redirect error is received, close the original client and recreate a new one to the re-directed address
receive_client.close()
fully_qualified_name = redirect.hostname.decode("utf-8")
# Use regular expression to parse the Event Hub name from the IoT Hub redirection address
if redirect.address:
# The regex searches for the Event Hub compatible name in the redirection address. The name is nested in
# between the port and 'ConsumerGroups'.
# (ex. "...servicebus.windows.net:12345/<Event Hub name>/ConsumerGroups/...").
# The regex matches string ':<digits>/', then any characters, then the string '/ConsumerGroups'.
iot_hub_name = re.search(":\d+\/.*/ConsumerGroups", str(redirect.address)).group(0).split("/")[1]
return "Endpoint=sb://{}/;SharedAccessKeyName={};SharedAccessKey={};EntityPath={}".format(
fully_qualified_name,
shared_access_key_name,
Expand Down