New Functions Natural Language API sample

functions-language/language.py

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+from google.cloud import language
+from google.cloud.language import types
+from google.cloud.language import enums
+
+def hello_world(request):
+    """Responds to any HTTP request.
+    Args:
+        request (flask.Request): HTTP request object.
+    Returns:
+        The response text or any set of values that can be turned into a
+        Response object using
+        `make_response <http://flask.pocoo.org/docs/1.0/api/#flask.Flask.make_response>`.
+    """
+    request_json = request.get_json()
+    if request.args and 'message' in request.args:
+        client = language.LanguageServiceClient()
+        text = request.args.get('message')
+        document = types.Document(
+            content=text,
+            type=enums.Document.Type.PLAIN_TEXT)
+        sentiment = client.analyze_sentiment(document).document_sentiment
+        score = sentiment.score
+        magnitude = sentiment.magnitude
+        return str(score*magnitude)
+    elif request_json and 'message' in request_json:
+        return request_json['message']
+    else:
+        return f'Hello World!'

functions-language/requirements.txt

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+# Function dependencies, for example:
+# package>=version
+google-cloud-language