Run against existing S3 images.

[javdl]

I guess it would be useful for a lot of people if you could also run this function against pre-existing files on S3. Is there a way to do so? I've seen some people use S3 list for such kind of things. Is this possible using Claudia.js?

[kdybicz]

You would need to install Claudia globally and then you can use test-lambda command with --event flag. The problem is that you should create separate event file for each already existing image you would like to process. You can use the event_source.json from fixtures as example and update file path, bucket ARN and name and I guess that would be it. Let me know if this works for you.

[sheh1000]

You can copy S3 objects from existing bucket to the bucket with configured SNS. Every copied file will trigger a Lambda function. To copy files use 'aws s3 cp'

[javdl]

Thanks, that worked for me. However I still think it is nice to do it without moving all files back and forth. Guess that just isn't supported by the way AWS implemented Lambda events?

[UsmanJ]

@Joostvanderlaan which method worked for you? The one from @sheh1000 ? aws s3 cp doesn't trigger the lambda function for me. I am using:

aws s3 cp test.jpg s3://[bucketname]/directory/test.jpg to test the function.

Any help will be appreciated :)

[UsmanJ]

Got it working. Lambda function wasn't triggering because of bucket policies.