aws lambda function getting access denied when getObject from s3

Question

I am getting an acccess denied error from S3 AWS service on my Lambda function.

This is the code:

// dependencies
var async = require(\'async\');
var         


        

Answer 1

If all the other policy ducks are in a row, S3 will still return an Access Denied message if the object doesn't exist AND the requester doesn't have ListBucket permission on the bucket.

From https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html:

...If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission.

If you have the s3:ListBucket permission on the bucket, Amazon S3 will return an HTTP status code 404 ("no such key") error. if you don’t have the s3:ListBucket permission, Amazon S3 will return an HTTP status code 403 ("access denied") error.