sentiment.py

from google.cloud import language
from google.cloud.language import enums
from google.cloud.language import types

def analyze(request):
    request_json = request.get_json()
    client = language.LanguageServiceClient()
    sentance = request_json['content']
    document = types.Document(
        content=sentance,
        type=enums.Document.Type.PLAIN_TEXT)
    annotations = client.analyze_sentiment(
        document=document)
    return str(annotations.document_sentiment.score)