Get data from ReceitaWS with the AWS Lambda Function

aws-lambda-function-receitaws.py

import json
import urllib
import re

def lambda_handler(event, context):
    
    if 'cnpj' in event and _regex(event['cnpj']):
        return json.loads(urllib.request.urlopen(_getUrlApi(event['cnpj'])).read())
    return json.loads("{\"status\": \"error\", \"message\": \"Formato incorreto\"}")

def _getUrlApi(cnpj):
    return ('https://www.receitaws.com.br/v1/cnpj/%s' % _replace(cnpj))
    
def _replace(str):
    return str.replace("-", "").replace("/", "").replace(".", "").replace(" ", "")
    
def _regex(str):
    return re.match('[0-9]{14}', _replace(str))