Add quickstart sample for the Cloud Speech API. [(#658)](GoogleCloudP…

…latform/python-docs-samples#658)

google-cloud-speech/samples/snippets/README.rst.in

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+# This file is used to generate README.rst
+
+product:
+  name: Google Cloud Speech API
+  short_name: Cloud Speech API
+  url: https://cloud.google.com/speech/docs/
+  description: >
+    The `Google Cloud Speech API`_ enables easy integration of Google speech
+    recognition technologies into developer applications. Send audio and receive
+    a text transcription from the Cloud Speech API service.
+
+setup:
+- auth
+- install_deps
+
+samples:
+- name: Quickstart
+  file: quickstart.py
+
+cloud_client_library: true

google-cloud-speech/samples/snippets/quickstart.py

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+#!/usr/bin/env python
+
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# 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.
+
+
+def run_quickstart():
+    # [START speech_quickstart]
+    import io
+    import os
+
+    # Imports the Google Cloud client library
+    from google.cloud import speech
+
+    # Instantiates a client
+    speech_client = speech.Client()
+
+    # The name of the audio file to transcribe
+    file_name = os.path.join(
+        os.path.dirname(__file__),
+        'resources',
+        'audio.raw')
+
+    # Loads the audio into memory
+    with io.open(file_name, 'rb') as audio_file:
+        content = audio_file.read()
+        audio_sample = speech_client.sample(
+            content,
+            source_uri=None,
+            encoding='LINEAR16',
+            sample_rate=16000)
+
+    # Detects speech in the audio file
+    alternatives = speech_client.speech_api.sync_recognize(audio_sample)
+
+    for alternative in alternatives:
+        print('Transcript: {}'.format(alternative.transcript))
+    # [END speech_quickstart]
+
+
+if __name__ == '__main__':
+    run_quickstart()

google-cloud-speech/samples/snippets/quickstart_test.py

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+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# 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 quickstart
+
+
+def test_quickstart(capsys):
+    quickstart.run_quickstart()
+    out, _ = capsys.readouterr()
+    assert 'Transcript: how old is the Brooklyn Bridge' in out

google-cloud-speech/samples/snippets/requirements.txt

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+google-cloud-speech==0.21.0