---
title: "Upload a File"
method: POST
path: "/system/file-explorer/upload"
tags: ["System"]
---

# Upload a File

`POST /system/file-explorer/upload`

Upload exactly one file to an absolute destination folder through FilePond without overwriting an existing entry

## Query parameters

- `path` string, required

## Response `201`

File uploaded

- GithubComAlchemillahqSylveInternalAPIResponseInternalHandlersSystemUploadFileResponse
  - `data` InternalHandlersSystemUploadFileResponse
    - `bytes` integer
    - `path` string
    - `uploadId` string
  - `error` string
  - `message` string
  - `status` string

## Other responses

- `400` — Invalid path, filename, or multipart request
- `401` — Unauthorized
- `403` — Administrator access or destination permission required
- `404` — Destination folder not found
- `408` — Upload cancelled or timed out
- `409` — Destination exists or restore is in progress
- `413` — File or multipart request too large
- `429` — Upload capacity exhausted
- `500` — Internal Server Error
- `507` — Insufficient storage or quota

## Changes

- **2026-08-12** `9a5026bf9057` — 1 breaking, 8 info
  - removed the success response with the status `200`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - …5 more
- **2025-08-14** `0e0247c98990` — 1 info
  - endpoint added
- **2025-03-11** `2b736ca1b025` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/alchemillahq/apis/sylve-api/changes/system/file-explorer/upload/post.md)

---

[API](https://skmtc.dev/alchemillahq/apis/sylve-api.md) · [All operations](https://skmtc.dev/alchemillahq/apis/sylve-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/alchemillahq/sylve-api/revisions/438105f28a33/schema)