How to access files in S3 bucket from R

0 votes

I have installed R on one of my Amazon EC2 Instance. And I have uploaded few csv files into a S3 bucket. I was wondering if there is a way to access these csv files in the S3 bucket from R.

Any help  would be appreciated.

Aug 10, 2018 in AWS by datageek
• 2,530 points

2 answers to this question.

0 votes

Enter the following command: install.packages("")

Then, use the s3.get() command from there. The Help tab should tell you what goes in for arguments.

answered Aug 10, 2018 by Archana
• 4,150 points
0 votes
You can take a look at the cloudyr aws.s3 package in Github ( ), it is quite related to what you need. Unfortunately, this package is quite early-stage & a little unstable.

I've have had good success simply using R's system() command to make a call to the AWS CLI. This is relatively easy to get started on, very robust, and very well supported.

Start here:

List objects using S3 API:

Get objects using S3 API:

So, for example, on command-line try following:

pip install awscli aws configure aws s3 help aws s3api list-objects --bucket some-bucket --query 'Contents[].{Key: Key}' aws s3api get-object --bucket some-bucket --key some_file.csv new_file_name.csv

In R, can just do something like:

system("aws s3api list-objects --bucket some-bucket --query 'Contents[].{Key: Key}' > my_bucket.json")
answered Aug 10, 2018 by Deepthi
• 300 points

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