---
title: "Download time series parquet file"
method: GET
path: "/cell_measurements/{measurement_id}/time_series/download"
tags: ["Cell Measurements"]
---

# Download time series parquet file

`GET /cell_measurements/{measurement_id}/time_series/download`

## Request

- Base URL: `https://api.ionworks.com`
- URL: `https://api.ionworks.com/cell_measurements/{measurement_id}/time_series/download`
- Auth: none declared

Redirect to storage for the time series parquet file.

Returns a 307 redirect to a short-lived signed URL. Most HTTP clients
follow redirects automatically, so the caller receives the parquet
bytes transparently. Replaces the old ``/time_series/signed_url``
endpoint.

## Path parameters

- `measurement_id` string, uuid, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-30** `ea3d377fec1a`: 1 breaking
  - for the `path` request parameter `measurement_id`, the format changed from no format to `uuid`

[Operation history](https://skmtc.dev/ionworks/apis/ionworks-api/changes/cell_measurements/:measurement_id/time_series/download/get.md)

---

[API](https://skmtc.dev/ionworks/apis/ionworks-api.md) - [All operations](https://skmtc.dev/ionworks/apis/ionworks-api/llms.txt) - [OpenAPI document](https://skmtc.dev/ionworks/apis/ionworks-api/revisions/abebbbc5f60a?raw)