JSON Composition for sending:

    {
        *"auth" : key obtained in get/auth method
        *,"zipcode" : Zip code (integer)
    }
    
    
    Notes:
    Fields with * are mandatory
    
    
    Returns with (SUCCESS):
    {
      "code": integer,
      "message": success message or error description,
      "dados": [
        {
            "cidade": city name,
            "logradouro": address (without number),
            "bairro": neighborhood,
            "uf": state abbreviation (UF)
        }
      ]
    }
    
    HTTP Code:
    200: Zip code found
    400: No data sent in request
    401: Provided JSON is invalid
    402: Zipcode TAG not provided
    404: Zip code not found
    500: Invalid auth
    501: Invalid credentials
    502: Client blocked