docs(samples): add quickstart code sample for STT V2 (#451)

Co-authored-by: Nitsan Shai <nshai@google.com>
Co-authored-by: nicain <nicain.seattle@gmail.com>

speech/snippets/quickstart_v2.py

@@ -0,0 +1,62 @@
+# Copyright 2022 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# [START speech_quickstart_v2]
+import io
+
+from google.cloud.speech_v2 import SpeechClient
+from google.cloud.speech_v2.types import cloud_speech
+
+
+def quickstart_v2(project_id, recognizer_id, audio_file):
+    # Instantiates a client
+    client = SpeechClient()
+
+    request = cloud_speech.CreateRecognizerRequest(
+        parent=f"projects/{project_id}/locations/global",
+        recognizer_id=recognizer_id,
+        recognizer=cloud_speech.Recognizer(
+            language_codes=["en-US"], model="latest_long"
+        ),
+    )
+
+    # Creates a Recognizer
+    operation = client.create_recognizer(request=request)
+    recognizer = operation.result()
+
+    # Reads a file as bytes
+    with io.open(audio_file, "rb") as f:
+        content = f.read()
+
+    config = cloud_speech.RecognitionConfig(auto_decoding_config={})
+
+    request = cloud_speech.RecognizeRequest(
+        recognizer=recognizer.name, config=config, content=content
+    )
+
+    # Transcribes the audio into text
+    response = client.recognize(request=request)
+
+    for result in response.results:
+        print("Transcript: {}".format(result.alternatives[0].transcript))
+
+    return response
+
+
+# [END speech_quickstart_v2]
+
+
+if __name__ == "__main__":
+    quickstart_v2()

speech/snippets/quickstart_v2_test.py

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+# Copyright 2022, Google, Inc.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import re
+from uuid import uuid4
+
+from google.cloud.speech_v2 import SpeechClient
+from google.cloud.speech_v2.types import cloud_speech
+
+import quickstart_v2
+
+RESOURCES = os.path.join(os.path.dirname(__file__), "resources")
+
+
+def delete_recognizer(name):
+    client = SpeechClient()
+    request = cloud_speech.DeleteRecognizerRequest(name=name)
+    client.delete_recognizer(request=request)
+
+
+def test_quickstart_v2(capsys):
+    project_id = os.getenv("GOOGLE_CLOUD_PROJECT")
+
+    recognizer_id = "recognizer-" + str(uuid4())
+    response = quickstart_v2.quickstart_v2(
+        project_id, recognizer_id, os.path.join(RESOURCES, "audio.wav")
+    )
+
+    assert re.search(
+        r"how old is the Brooklyn Bridge",
+        response.results[0].alternatives[0].transcript,
+        re.DOTALL | re.I,
+    )
+
+    delete_recognizer(
+        f"projects/{project_id}/locations/global/recognizers/{recognizer_id}"
+    )