AWS Lambda to DynamoDB integration (can be used with Alexa)

lambda-dynamodb.py

import boto3

dynamodb = boto3.resource('dynamodb', region_name='eu-central-1')
table = dynamodb.Table('roomtemp')

def set_temperature(current_temp, session):
    table.put_item(Item={'currentTemperature': current_temp, 'userId':session['user']['userId']})
    return {"currentTemp": current_temp}
  
def get_temperature(session):
  userId = session['user']['userId']
  response = table.get_item(Key={'userId': userId})
  item = response.get('Item')

  if item:
        current_temp = '{0}'.format(item['currentTemperature'])
  return None