> ## Documentation Index
> Fetch the complete documentation index at: https://docs.galtea.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Storage Service

> Storage Service API methods in the Galtea SDK

The Storage Service moves files between this machine and the platform's object storage. Bytes never pass through the API: it hands out a presigned URL, the file travels straight to or from storage, and only the resulting reference is sent back to the API.
This Service is exposed by the `galtea.storage` object.

<Info>
  Remember that we will be using the `galtea` object. More information [here](/sdk/api/galtea).
</Info>

Most test cases attach files through [`test_cases.create()`](/sdk/api/test-case/create) or [`test_cases.upload_input_file()`](/sdk/api/test-case/upload-input-file), which call `upload()` for you. Reach for `galtea.storage` directly when you need to fetch the bytes back, or upload a file for a purpose other than a test case input.

For the full round trip, from a dataset of documents to a scored answer, see [Evaluate Document Inputs](/sdk/tutorials/evaluate-document-inputs).

## Service Methods

* [Upload File](/sdk/api/storage/upload)
* [Download File](/sdk/api/storage/download)