---
title: "Upload a CSV file"
method: POST
path: "/externalcatalogue/upload"
tags: ["External Catalogue"]
---

# Upload a CSV file

`POST /externalcatalogue/upload`

Uploads a file to internal S3 storage. Filename must match a dataset definition pattern.

## Query parameters

- `objectKey` string, required

## Response `200`

File uploaded

- object
  - `message` string
  - `objectKey` string
  - `size` integer
  - `contentType` string

## Other responses

- `422` — Validation error

---

[API](https://skmtc.net/defra/apis/keeper-data-bridge-api.md) · [All operations](https://skmtc.net/defra/apis/keeper-data-bridge-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/defra/keeper-data-bridge-api/versions/0ab7d7a7a24f/schema)