feat: add sample code for using regional Dialogflow endpoint (#254)

* Add sample code for using regional dialogflow endpoint

* Update comment

* udpate some styles based on last round of reviews

* run blacken to reformat files and update remaining string formatting

Co-authored-by: Ye Yuan <yuanye@google.com>

packages/google-cloud-dialogflow/samples/snippets/create_document_test.py

@@ -22,9 +22,9 @@
 
 import document_management
 
-PROJECT_ID = os.getenv('GOOGLE_CLOUD_PROJECT')
-KNOWLEDGE_BASE_NAME = 'knowledge_{}'.format(uuid.uuid4())
-DOCUMENT_DISPLAY_NAME = 'test_document_{}'.format(uuid.uuid4())
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+KNOWLEDGE_BASE_NAME = "knowledge_{}".format(uuid.uuid4())
+DOCUMENT_DISPLAY_NAME = "test_document_{}".format(uuid.uuid4())
 pytest.KNOWLEDGE_BASE_ID = None
 
 
@@ -33,17 +33,18 @@ def setup_teardown():
     # Create a knowledge base to use in document management
     client = dialogflow_v2beta1.KnowledgeBasesClient()
     project_path = client.common_project_path(PROJECT_ID)
-    knowledge_base = dialogflow_v2beta1.KnowledgeBase(
-        display_name=KNOWLEDGE_BASE_NAME)
-    response = client.create_knowledge_base(parent=project_path, knowledge_base=knowledge_base)
-    pytest.KNOWLEDGE_BASE_ID = response.name.split(
-        '/knowledgeBases/')[1].split('\n')[0]
+    knowledge_base = dialogflow_v2beta1.KnowledgeBase(display_name=KNOWLEDGE_BASE_NAME)
+    response = client.create_knowledge_base(
+        parent=project_path, knowledge_base=knowledge_base
+    )
+    pytest.KNOWLEDGE_BASE_ID = response.name.split("/knowledgeBases/")[1].split("\n")[0]
 
     yield
 
     # Delete the created knowledge base
     knowledge_base_path = client.knowledge_base_path(
-        PROJECT_ID, pytest.KNOWLEDGE_BASE_ID)
+        PROJECT_ID, pytest.KNOWLEDGE_BASE_ID
+    )
     request = dialogflow_v2beta1.DeleteKnowledgeBaseRequest(
         name=knowledge_base_path, force=True
     )
@@ -53,7 +54,12 @@ def setup_teardown():
 @pytest.mark.flaky(max_runs=3, min_passes=1)
 def test_create_document(capsys):
     document_management.create_document(
-        PROJECT_ID, pytest.KNOWLEDGE_BASE_ID, DOCUMENT_DISPLAY_NAME,
-        'text/html', 'FAQ', 'https://cloud.google.com/storage/docs/faq')
+        PROJECT_ID,
+        pytest.KNOWLEDGE_BASE_ID,
+        DOCUMENT_DISPLAY_NAME,
+        "text/html",
+        "FAQ",
+        "https://cloud.google.com/storage/docs/faq",
+    )
     out, _ = capsys.readouterr()
     assert DOCUMENT_DISPLAY_NAME in out

packages/google-cloud-dialogflow/samples/snippets/create_knowledge_base_test.py

@@ -22,8 +22,8 @@
 
 import knowledge_base_management
 
-PROJECT_ID = os.getenv('GOOGLE_CLOUD_PROJECT')
-KNOWLEDGE_BASE_NAME = 'knowledge_{}'.format(uuid.uuid4())
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+KNOWLEDGE_BASE_NAME = "knowledge_{}".format(uuid.uuid4())
 pytest.KNOWLEDGE_BASE_ID = None
 
 
@@ -35,14 +35,14 @@ def teardown():
     client = dialogflow_v2beta1.KnowledgeBasesClient()
     assert pytest.KNOWLEDGE_BASE_ID is not None
     knowledge_base_path = client.knowledge_base_path(
-        PROJECT_ID, pytest.KNOWLEDGE_BASE_ID)
+        PROJECT_ID, pytest.KNOWLEDGE_BASE_ID
+    )
     client.delete_knowledge_base(name=knowledge_base_path)
 
 
 def test_create_knowledge_base(capsys):
-    knowledge_base_management.create_knowledge_base(PROJECT_ID,
-                                                    KNOWLEDGE_BASE_NAME)
+    knowledge_base_management.create_knowledge_base(PROJECT_ID, KNOWLEDGE_BASE_NAME)
     out, _ = capsys.readouterr()
     assert KNOWLEDGE_BASE_NAME in out
 
-    pytest.KNOWLEDGE_BASE_ID = out.split('/knowledgeBases/')[1].split('\n')[0]
+    pytest.KNOWLEDGE_BASE_ID = out.split("/knowledgeBases/")[1].split("\n")[0]

packages/google-cloud-dialogflow/samples/snippets/detect_intent_audio.py

@@ -31,8 +31,7 @@
 
 
 # [START dialogflow_detect_intent_audio]
-def detect_intent_audio(project_id, session_id, audio_file_path,
-                        language_code):
+def detect_intent_audio(project_id, session_id, audio_file_path, language_code):
     """Returns the result of detect intent with an audio file as input.
 
     Using the same `session_id` between requests allows continuation
@@ -46,14 +45,16 @@ def detect_intent_audio(project_id, session_id, audio_file_path,
     sample_rate_hertz = 16000
 
     session = session_client.session_path(project_id, session_id)
-    print('Session path: {}\n'.format(session))
+    print("Session path: {}\n".format(session))
 
-    with open(audio_file_path, 'rb') as audio_file:
+    with open(audio_file_path, "rb") as audio_file:
         input_audio = audio_file.read()
 
     audio_config = dialogflow.InputAudioConfig(
-        audio_encoding=audio_encoding, language_code=language_code,
-        sample_rate_hertz=sample_rate_hertz)
+        audio_encoding=audio_encoding,
+        language_code=language_code,
+        sample_rate_hertz=sample_rate_hertz,
+    )
     query_input = dialogflow.QueryInput(audio_config=audio_config)
 
     request = dialogflow.DetectIntentRequest(
@@ -63,40 +64,43 @@ def detect_intent_audio(project_id, session_id, audio_file_path,
     )
     response = session_client.detect_intent(request=request)
 
-    print('=' * 20)
-    print('Query text: {}'.format(response.query_result.query_text))
-    print('Detected intent: {} (confidence: {})\n'.format(
-        response.query_result.intent.display_name,
-        response.query_result.intent_detection_confidence))
-    print('Fulfillment text: {}\n'.format(
-        response.query_result.fulfillment_text))
+    print("=" * 20)
+    print("Query text: {}".format(response.query_result.query_text))
+    print(
+        "Detected intent: {} (confidence: {})\n".format(
+            response.query_result.intent.display_name,
+            response.query_result.intent_detection_confidence,
+        )
+    )
+    print("Fulfillment text: {}\n".format(response.query_result.fulfillment_text))
+
+
 # [END dialogflow_detect_intent_audio]
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     parser = argparse.ArgumentParser(
-        description=__doc__,
-        formatter_class=argparse.RawDescriptionHelpFormatter)
+        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
+    )
     parser.add_argument(
-        '--project-id',
-        help='Project/agent id.  Required.',
-        required=True)
+        "--project-id", help="Project/agent id.  Required.", required=True
+    )
     parser.add_argument(
-        '--session-id',
-        help='Identifier of the DetectIntent session. '
-        'Defaults to a random UUID.',
-        default=str(uuid.uuid4()))
+        "--session-id",
+        help="Identifier of the DetectIntent session. " "Defaults to a random UUID.",
+        default=str(uuid.uuid4()),
+    )
     parser.add_argument(
-        '--language-code',
+        "--language-code",
         help='Language code of the query. Defaults to "en-US".',
-        default='en-US')
+        default="en-US",
+    )
     parser.add_argument(
-        '--audio-file-path',
-        help='Path to the audio file.',
-        required=True)
+        "--audio-file-path", help="Path to the audio file.", required=True
+    )
 
     args = parser.parse_args()
 
     detect_intent_audio(
-        args.project_id, args.session_id, args.audio_file_path,
-        args.language_code)
+        args.project_id, args.session_id, args.audio_file_path, args.language_code
+    )

packages/google-cloud-dialogflow/samples/snippets/detect_intent_audio_test.py

@@ -19,18 +19,18 @@
 from detect_intent_audio import detect_intent_audio
 
 DIRNAME = os.path.realpath(os.path.dirname(__file__))
-PROJECT_ID = os.getenv('GOOGLE_CLOUD_PROJECT')
-SESSION_ID = 'test_{}'.format(uuid.uuid4())
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+SESSION_ID = "test_{}".format(uuid.uuid4())
 AUDIOS = [
-    '{0}/resources/book_a_room.wav'.format(DIRNAME),
-    '{0}/resources/mountain_view.wav'.format(DIRNAME),
-    '{0}/resources/today.wav'.format(DIRNAME),
+    "{0}/resources/book_a_room.wav".format(DIRNAME),
+    "{0}/resources/mountain_view.wav".format(DIRNAME),
+    "{0}/resources/today.wav".format(DIRNAME),
 ]
 
 
 def test_detect_intent_audio(capsys):
     for audio_file_path in AUDIOS:
-        detect_intent_audio(PROJECT_ID, SESSION_ID, audio_file_path, 'en-US')
+        detect_intent_audio(PROJECT_ID, SESSION_ID, audio_file_path, "en-US")
     out, _ = capsys.readouterr()
 
-    assert 'Fulfillment text: What time will the meeting start?' in out
+    assert "Fulfillment text: What time will the meeting start?" in out

packages/google-cloud-dialogflow/samples/snippets/detect_intent_knowledge.py

@@ -28,8 +28,9 @@
 
 
 # [START dialogflow_detect_intent_knowledge]
-def detect_intent_knowledge(project_id, session_id, language_code,
-                            knowledge_base_id, texts):
+def detect_intent_knowledge(
+    project_id, session_id, language_code, knowledge_base_id, texts
+):
     """Returns the result of detect intent with querying Knowledge Connector.
 
     Args:
@@ -41,69 +42,79 @@ def detect_intent_knowledge(project_id, session_id, language_code,
     texts: A list of text queries to send.
     """
     from google.cloud import dialogflow_v2beta1 as dialogflow
+
     session_client = dialogflow.SessionsClient()
 
     session_path = session_client.session_path(project_id, session_id)
-    print('Session path: {}\n'.format(session_path))
+    print("Session path: {}\n".format(session_path))
 
     for text in texts:
-        text_input = dialogflow.TextInput(
-            text=text, language_code=language_code)
+        text_input = dialogflow.TextInput(text=text, language_code=language_code)
 
         query_input = dialogflow.QueryInput(text=text_input)
 
-        knowledge_base_path = dialogflow.KnowledgeBasesClient \
-            .knowledge_base_path(project_id, knowledge_base_id)
+        knowledge_base_path = dialogflow.KnowledgeBasesClient.knowledge_base_path(
+            project_id, knowledge_base_id
+        )
 
         query_params = dialogflow.QueryParameters(
-            knowledge_base_names=[knowledge_base_path])
+            knowledge_base_names=[knowledge_base_path]
+        )
 
         request = dialogflow.DetectIntentRequest(
-            session=session_path,
-            query_input=query_input,
-            query_params=query_params
+            session=session_path, query_input=query_input, query_params=query_params
         )
         response = session_client.detect_intent(request=request)
 
-        print('=' * 20)
-        print('Query text: {}'.format(response.query_result.query_text))
-        print('Detected intent: {} (confidence: {})\n'.format(
-            response.query_result.intent.display_name,
-            response.query_result.intent_detection_confidence))
-        print('Fulfillment text: {}\n'.format(
-            response.query_result.fulfillment_text))
-        print('Knowledge results:')
+        print("=" * 20)
+        print("Query text: {}".format(response.query_result.query_text))
+        print(
+            "Detected intent: {} (confidence: {})\n".format(
+                response.query_result.intent.display_name,
+                response.query_result.intent_detection_confidence,
+            )
+        )
+        print("Fulfillment text: {}\n".format(response.query_result.fulfillment_text))
+        print("Knowledge results:")
         knowledge_answers = response.query_result.knowledge_answers
         for answers in knowledge_answers.answers:
-            print(' - Answer: {}'.format(answers.answer))
-            print(' - Confidence: {}'.format(
-                answers.match_confidence))
+            print(" - Answer: {}".format(answers.answer))
+            print(" - Confidence: {}".format(answers.match_confidence))
+
+
 # [END dialogflow_detect_intent_knowledge]
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     parser = argparse.ArgumentParser(
-        description=__doc__,
-        formatter_class=argparse.RawDescriptionHelpFormatter)
+        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
+    )
     parser.add_argument(
-        '--project-id', help='Project/agent id.  Required.', required=True)
+        "--project-id", help="Project/agent id.  Required.", required=True
+    )
     parser.add_argument(
-        '--session-id',
-        help='ID of the DetectIntent session. '
-             'Defaults to a random UUID.',
-        default=str(uuid.uuid4()))
+        "--session-id",
+        help="ID of the DetectIntent session. " "Defaults to a random UUID.",
+        default=str(uuid.uuid4()),
+    )
     parser.add_argument(
-        '--language-code',
+        "--language-code",
         help='Language code of the query. Defaults to "en-US".',
-        default='en-US')
+        default="en-US",
+    )
     parser.add_argument(
-        '--knowledge-base-id',
-        help='The id of the Knowledge Base to query against',
-        required=True)
-    parser.add_argument('texts', nargs='+', type=str, help='Text inputs.')
+        "--knowledge-base-id",
+        help="The id of the Knowledge Base to query against",
+        required=True,
+    )
+    parser.add_argument("texts", nargs="+", type=str, help="Text inputs.")
 
     args = parser.parse_args()
 
-    detect_intent_knowledge(args.project_id, args.session_id,
-                            args.language_code, args.knowledge_base_id,
-                            args.texts)
+    detect_intent_knowledge(
+        args.project_id,
+        args.session_id,
+        args.language_code,
+        args.knowledge_base_id,
+        args.texts,
+    )

packages/google-cloud-dialogflow/samples/snippets/detect_intent_knowledge_test.py

@@ -19,15 +19,16 @@
 
 import detect_intent_knowledge
 
-PROJECT_ID = os.getenv('GOOGLE_CLOUD_PROJECT')
-SESSION_ID = 'session_{}'.format(uuid.uuid4())
-KNOWLEDGE_BASE_ID = 'MjEwMjE4MDQ3MDQwMDc0NTQ3Mg'
-TEXTS = ['Where is my data stored?']
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+SESSION_ID = "session_{}".format(uuid.uuid4())
+KNOWLEDGE_BASE_ID = "MjEwMjE4MDQ3MDQwMDc0NTQ3Mg"
+TEXTS = ["Where is my data stored?"]
 
 
 def test_detect_intent_knowledge(capsys):
     detect_intent_knowledge.detect_intent_knowledge(
-        PROJECT_ID, SESSION_ID, 'en-us', KNOWLEDGE_BASE_ID, TEXTS)
+        PROJECT_ID, SESSION_ID, "en-us", KNOWLEDGE_BASE_ID, TEXTS
+    )
 
     out, _ = capsys.readouterr()
-    assert 'Knowledge results' in out
+    assert "Knowledge results" in out