Flat-File Access with AWS CLI

The fastest way to validate your flat-file access is to export the temporary credentials from the dashboard and run standard `aws s3` commands against the R2 endpoint.

1. Export The Credentials

2. List The Bucket

This confirms that the temporary credentials, endpoint, and session token are all accepted by the R2 S3-compatible API.

3. Download A Known Object

4. Download All Data For One Date

Object keys follow the pattern {exchange}/{YYYY-MM-DD}/{HH}/{symbol}_{data_type}.parquet.zst. To pull every hour for one exchange on one date, copy that date prefix recursively.

Required Parameters

Keep `--endpoint-url` pointed at your account-specific R2 endpoint and keep `--region auto`. Both are required for standard AWS tooling to work correctly against R2.