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SWI-2787 Add Support for StartTranscription and StopTranscription (
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…#154)

* SWI-2787 Add Support for `StartTranscription` and `StopTranscription` BXML

* Ignore 404s from GET Call in tests due to API Bug

* Update bandwidth/tests/test_api.py

Co-authored-by: Cameron Koegel <[email protected]>

---------

Co-authored-by: Cameron Koegel <[email protected]>
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ajrice6713 and ckoegel authored Jun 14, 2023
1 parent 7652465 commit 2872359
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Showing 6 changed files with 212 additions and 20 deletions.
44 changes: 24 additions & 20 deletions bandwidth/tests/test_api.py
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
from bandwidth.messaging.exceptions.messaging_exception import MessagingException
from bandwidth.exceptions.api_exception import APIException
from bandwidth.messaging.models.message_request import MessageRequest
from bandwidth.voice.exceptions.api_error_exception import ApiErrorException
from bandwidth.voice.models.create_call_request import CreateCallRequest
from bandwidth.voice.models.machine_detection_configuration import MachineDetectionConfiguration
from bandwidth.voice.models.callback_method_enum import CallbackMethodEnum
Expand Down Expand Up @@ -222,13 +223,31 @@ def test_successful_create_and_get_call(self, voice_client):

create_response = voice_client.create_call(BW_ACCOUNT_ID, call_body)
create_response_body = create_response.body
time.sleep(15)
get_response = voice_client.get_call(BW_ACCOUNT_ID, create_response.body.call_id)
get_response_body = get_response.body
time.sleep(2)
try:
get_response = voice_client.get_call(BW_ACCOUNT_ID, create_response.body.call_id)
get_response_body = get_response.body
print(vars(get_response))
assert get_response.status_code == 200
assert get_response_body.call_id == create_response_body.call_id
assert get_response_body.application_id == BW_VOICE_APPLICATION_ID
assert get_response_body.account_id == BW_ACCOUNT_ID
if get_response_body.start_time:
assert dateutil.parser.isoparse(str(get_response_body.start_time))
assert dateutil.parser.isoparse(str(get_response_body.enqueued_time))
assert dateutil.parser.isoparse(str(get_response_body.last_update))
if get_response_body.answer_time: # may be null dependent on timing
assert dateutil.parser.isoparse(str(get_response_body.answer_time))
if get_response_body.end_time: # may be null dependent on timing
assert dateutil.parser.isoparse(str(get_response_body.end_time))
if get_response_body.disconnect_cause == "error":
assert type(get_response_body.error_message) is str
assert len(get_response_body.error_id) == 36
except ApiErrorException as e:
if e.response_code != 404:
raise e

print(vars(create_response))
print(vars(get_response))

assert create_response.status_code == 201
assert len(create_response_body.call_id) == 47 # assert request created and id matches expected length (47)
assert create_response_body.account_id == BW_ACCOUNT_ID
Expand All @@ -242,21 +261,6 @@ def test_successful_create_and_get_call(self, voice_client):
assert type(create_response_body.callback_timeout) is float
assert create_response_body.answer_method == "POST"
assert create_response_body.disconnect_method == "GET"
assert get_response.status_code == 200
assert get_response_body.call_id == create_response_body.call_id
assert get_response_body.application_id == BW_VOICE_APPLICATION_ID
assert get_response_body.account_id == BW_ACCOUNT_ID
if get_response_body.start_time:
assert dateutil.parser.isoparse(str(get_response_body.start_time))
assert dateutil.parser.isoparse(str(get_response_body.enqueued_time))
assert dateutil.parser.isoparse(str(get_response_body.last_update))
if get_response_body.answer_time: # may be null dependent on timing
assert dateutil.parser.isoparse(str(get_response_body.answer_time))
if get_response_body.end_time: # may be null dependent on timing
assert dateutil.parser.isoparse(str(get_response_body.end_time))
if get_response_body.disconnect_cause == "error":
assert type(get_response_body.error_message) is str
assert len(get_response_body.error_id) == 36

def test_failed_create_and_failed_get_call(self, voice_client):
"""Create a failed call and get status of a call that doesnt exist.
Expand Down
39 changes: 39 additions & 0 deletions bandwidth/tests/test_bxml.py
Original file line number Diff line number Diff line change
Expand Up @@ -446,3 +446,42 @@ def test_stop_stream_bxml_verb(self):
actual = response.to_bxml()

assert expected == actual

def test_start_transcription_bxml_verb(self):
expected = '<?xml version="1.0" encoding="UTF-8"?><Response><StartTranscription name="name" tracks="both" transcriptionEventUrl="https://www.test.com/transcription" transcriptionEventMethod="POST" username="username" password="password" destination="https://www.test.com/transcribeCallback" stabilized="true"><CustomParam name="name1" value="value1"/><CustomParam name="name2" value="value2"/></StartTranscription></Response>'
response = Response()
custom_param_1 = CustomParam(
name="name1",
value="value1"
)
custom_param_2 = CustomParam(
name="name2",
value="value2"
)
custom_params = [custom_param_1, custom_param_2]
start_transcription = StartTranscription(
name='name',
tracks='both',
transcription_event_url='https://www.test.com/transcription',
transcription_event_method='POST',
username='username',
password='password',
destination='https://www.test.com/transcribeCallback',
stabilized=True,
custom_params=custom_params
)
response.add_verb(start_transcription)
actual = response.to_bxml()

assert expected == actual

def test_stop_transcription_bxml(self):
expected= '<?xml version="1.0" encoding="UTF-8"?><Response><StopTranscription name="name"/></Response>'
response = Response()
stop_transcription = StopTranscription(
name='name'
)
response.add_verb(stop_transcription)
actual = response.to_bxml()

assert expected == actual
3 changes: 3 additions & 0 deletions bandwidth/voice/bxml/verbs/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -23,3 +23,6 @@
from .start_stream import StartStream
from .stream_param import StreamParam
from .stop_stream import StopStream
from .start_transcription import StartTranscription
from .stop_transcription import StopTranscription
from .custom_param import CustomParam
38 changes: 38 additions & 0 deletions bandwidth/voice/bxml/verbs/custom_param.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
"""
custom_param.py
Representation of Bandwidth's StartTranscription BXML verb
@license MIT
"""

from lxml import etree

from .base_verb import AbstractBxmlVerb

CUSTOM_PARAM_TAG = "CustomParam"


class CustomParam(AbstractBxmlVerb):
def __init__(
self,
name: str,
value: str,
):
"""
Initializes the CustomParam class
:param name: The name of this parameter, up to 256 characters.
:param value: The value of this parameter, up to 2048 characters.
"""
self.name = name
self.value = value

def to_etree_element(self):
root = etree.Element(CUSTOM_PARAM_TAG)
root.set("name", self.name)
root.set("value", self.value)
return root

def to_bxml(self):
root = etree.Element(CUSTOM_PARAM_TAG)
return etree.tostring(root).decode()
76 changes: 76 additions & 0 deletions bandwidth/voice/bxml/verbs/start_transcription.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,76 @@
"""
start_transcription.py
Representation of Bandwidth's StartTranscription BXML verb
@license MIT
"""

from typing import List

from lxml import etree

from .base_verb import AbstractBxmlVerb
from .custom_param import CustomParam

START_TRANSCRIPTION_TAG = "StartTranscription"


class StartTranscription(AbstractBxmlVerb):

def __init__(
self,
name: str = None,
tracks: str = None,
transcription_event_url: str = None,
transcription_event_method: str = None,
username: str = None,
password: str = None,
destination: str = None,
stabilized: bool = None,
custom_params: List[CustomParam] = None,
):
"""
Initializes the StartTranscription class
:param name: A name to refer to this transcription by. Used when sending <StopTranscription>. If not provided, it will default to the generated transcription id as sent in the Real-Time Transcription Started webhook.
:param tracks: The part of the call to send a transcription from. inbound, outbound or both. Default is inbound.
:param transcription_event_url: URL to send the associated Webhook events to during this real-time transcription's lifetime. Does not accept BXML. May be a relative URL.
:param transcription_event_method: The HTTP method to use for the request to transcriptionEventUrl. GET or POST. Default value is POST.
:param username: The username to send in the HTTP request to transcriptionEventUrl. If specified, the transcriptionEventUrl must be TLS-encrypted (i.e., https).
:param password: The password to send in the HTTP request to transcriptionEventUrl. If specified, the transcriptionEventUrl must be TLS-encrypted (i.e., https).
:param destination: A websocket URI to send the transcription to. A transcription of the specified tracks will be sent via websocket to this URL as a series of JSON messages. See below for more details on the websocket packet format.
:param stabilized: Whether to send transcription update events to the specified destination only after they have become stable. Requires destination. Defaults to true.
:param custom_params: These elements define optional user specified parameters that will be sent to the destination URL when the real-time transcription is first started.
"""
self.name = name
self.tracks = tracks
self.transcription_event_url = transcription_event_url
self.transcription_event_method = transcription_event_method
self.username = username
self.password = password
self.destination = destination
self.stabilized = stabilized
self.custom_params = custom_params

def to_bxml(self):
root = etree.Element(START_TRANSCRIPTION_TAG)
if self.name is not None:
root.set("name", self.name)
if self.tracks is not None:
root.set("tracks", self.tracks)
if self.transcription_event_url is not None:
root.set("transcriptionEventUrl", self.transcription_event_url)
if self.transcription_event_method is not None:
root.set("transcriptionEventMethod", self.transcription_event_method)
if self.username is not None:
root.set("username", self.username)
if self.password is not None:
root.set("password", self.password)
if self.destination is not None:
root.set("destination", self.destination)
if self.stabilized is not None:
root.set("stabilized", str(self.stabilized).lower())
if self.custom_params is not None:
for custom_param in self.custom_params:
root.append(custom_param.to_etree_element())
return etree.tostring(root).decode()
32 changes: 32 additions & 0 deletions bandwidth/voice/bxml/verbs/stop_transcription.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
"""
stop_transcription.py
Representation of Bandwidth's StartTranscription BXML verb
@license MIT
"""

from lxml import etree

from .base_verb import AbstractBxmlVerb

STOP_TRANSCRIPTION_TAG = "StopTranscription"


class StopTranscription(AbstractBxmlVerb):

def __init__(
self,
name: str = None
):
"""
Initializes the StopTranscription class
:param name: The name of the real-time transcription to stop. This is either the user selected name when sending the <StartTranscription> verb, or the system generated name returned in the Real-Time Transcription Started webhook if <StartTranscription> was sent with no name attribute. If no name is specified, then all active call transcriptions will be stopped.
"""
self.name = name

def to_bxml(self):
root = etree.Element(STOP_TRANSCRIPTION_TAG)
if self.name is not None:
root.set("name", self.name)
return etree.tostring(root).decode()

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