Running S3-put-triggered Lambda function on existing S3 objects?

Question

I have a Lambda function in Node.js that processes new images added to my bucket. I want to run the function for all existing objects. How can I do this? I figured the easiest w

Answer 1

well basically what you need is to use some api calls(boto for example if you use python)and list all new objects or all objects in your s3 bucket and then process these objects

here is a snippet:

from boto.s3.connection import S3Connection

conn = S3Connection()
source = conn.get_bucket(src_bucket)
src_list = set([key.name for key in source.get_all_keys(headers=None, prefix=prefix)])
//and then you can go over this src list
for entry in src_list:
   do something