---
title: "Initiate a multipart upload"
method: POST
path: "/v1/uploads/sessions/{sessionId}/multipart/initiate"
tags: ["Uploads"]
---

# Initiate a multipart upload

`POST /v1/uploads/sessions/{sessionId}/multipart/initiate`

## Request

- Base URL: `https://api.lizzflix.xyz` (the document declares no server; this is the origin it was published from)
- URL: `https://api.lizzflix.xyz/v1/uploads/sessions/{sessionId}/multipart/initiate`
- Auth: none declared

## Path parameters

- `sessionId` string, required

## Response `200`

Multipart upload initiated

- UploadMultipartInitiateResponse
  - `uploadId` string

## Other responses

- `401`: Unauthorized
- `409`: The session already has its file (a session writes its file once): start a new upload session
- `500`: Initiate failed

---

[API](https://skmtc.dev/lizzflix/apis/lizzflix-api.md) · [All operations](https://skmtc.dev/lizzflix/apis/lizzflix-api/llms.txt) · [OpenAPI document](https://skmtc.dev/lizzflix/apis/lizzflix-api/revisions/4536ce9d80ff?raw)