I have a python class include some methods and I want to run it in Lambda Function and test it. I have a problem with executing in lambda environment .I didn't find any example for using class in Lambda function.I have some error for modifying handler and importing Modules .Is it possible using class in lambda Function? (I also tried to upload my file as a zip file but result is the same.)
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1You can write Python code for AWS Lambda like you would for any other purpose. Do you see any problems in the logs for your lambda function?wkl– wkl2016-08-25 15:12:19 +00:00Commented Aug 25, 2016 at 15:12
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1If you post your code section that causes the issue, we can more easily help you :-)K.Mulier– K.Mulier2016-08-25 15:28:39 +00:00Commented Aug 25, 2016 at 15:28
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Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example. stackoverflow.com/help/mcveMark B– Mark B2016-08-25 15:35:52 +00:00Commented Aug 25, 2016 at 15:35
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1 Answer
I have also the same doubt how to run the below code in aws lambda using function.
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
class AESCipher(object):
def __init__(self, key):
self.bs = 32
self.key = hashlib.sha256(AESCipher.str_to_bytes(key)).digest()
@staticmethod
def str_to_bytes(data):
u_type = type(b''.decode('utf8'))
if isinstance(data, u_type):
return data.encode('utf8')
return data
def _pad(self, s):
return s + (self.bs - len(s) % self.bs) * AESCipher.str_to_bytes(chr(self.bs - len(s) % self.bs))
@staticmethod
def _unpad(s):
return s[:-ord(s[len(s)-1:])]
def encrypt(self, raw):
raw = self._pad(AESCipher.str_to_bytes(raw))
iv = Random.new().read(AES.block_size)
cipher = AES.new(self.key, AES.MODE_CBC, iv)
return base64.b64encode(iv + cipher.encrypt(raw)).decode('utf-8')
def decrypt(self, enc):
enc = base64.b64decode(enc)
iv = enc[:AES.block_size]
cipher = AES.new(self.key, AES.MODE_CBC, iv)
return self._unpad(cipher.decrypt(enc[AES.block_size:])).decode('utf-8')
cipher = AESCipher(key='abcd')
encrypted = cipher.encrypt("Hello World")
print(encrypted)
new_cipher = AESCipher(key='abcd')
decrypted = new_cipher.decrypt('y1sJ7uJITflG81eKHUWd+JkGlOyj3v/iR5HFyiIJv3u9ZpWFCX/XW+A5HS4iPBVb')
print(decrypted)
