def update_contact()

in CBHelper-evaluateCallBack/lambda_function.py [0:0]


def update_contact(phone, contactId, table):
    dynamodb = boto3.resource('dynamodb')
    table = dynamodb.Table(table)
    
    try:
        response = table.update_item(
            Key={
                'phone': phone
            }, 
            UpdateExpression='SET #item = :newState',  
            ExpressionAttributeNames={
                '#item': 'contactId'
            },
            ExpressionAttributeValues={
                ':newState': contactId
            },
            ReturnValues="UPDATED_NEW")
        print (response)
    except Exception as e:
        print (e)
    else:
        return response