---
title: "Last Data in MQTT CSV format"
method: GET
path: "/{username}/feeds/{feed_key}/data/retain"
tags: ["Data"]
---

# Last Data in MQTT CSV format

`GET /{username}/feeds/{feed_key}/data/retain`

Get the most recent data point in the feed in an MQTT compatible CSV format: `value,lat,lon,ele`

## Path parameters

- `username` string, required
- `feed_key` string, required

## Response `200`

CSV string in `value,lat,lon,ele` format. The lat, lon, and ele values are left blank if they are not set.

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `500` — Server Error

---

[API](https://skmtc.net/adafruit/apis/adafruit-io-rest-api.md) · [All operations](https://skmtc.net/adafruit/apis/adafruit-io-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/adafruit/adafruit-io-rest-api/versions/b16cd6123537/schema)