> For the complete documentation index, see [llms.txt](https://docs.langstack.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.langstack.com/welcome/in-depth-learning/connectors/aws-connector/using-s3-connector-in-etl-pipeline.md).

# Using S3 connector in ETL pipeline

## S3 upload/download capabilities

Depending on the type of connection established, the capabilities associated with uploading and/or downloading files with S3 connector are as follows:

* OAuth 2.0: Upload/Download both (Read and Write). However, user can restrict permissions
* Access Key: Upload/Download both (Read and Write). However, user can restrict permissions
* Public: Download only (Read only).

## Prerequisites

* The following permissions are required for file access in S3:
  * s3:PutObject
  * s3:GetObject
  * s3:DeleteObject
  * s3:ListBucket
  * GetObjectTagging
  * PutObjectTagging
* There can be one root user and multiple IAM users.
* Multiple IAM accounts can read and write between Langstack and AWS.
* There can be multiple buckets and the bucket detail can be edited in the connector.