---
title: "Create a multipart upload"
method: POST
path: "/bus/multipart/create"
tags: ["bus"]
---

# Create a multipart upload

`POST /bus/multipart/create`

Creates a new multipart upload and returns an upload ID.

## Request body

- object
  - `bucket` string — The name of the bucket.
  - `key` string — The key of the object to upload
  - `mimeType` string — The MIME type of the object
  - `metadata` ObjectUserMetadata — User-defined metadata about an object provided through X-Sia-Meta- headers
  - `disableClientSideEncryption` boolean — Whether to disable client-side encryption

## Response `200`

Successfully created multipart upload

- object
  - `uploadID` string, byte — The ID of the multipart upload

## Other responses

- `500` — Internal server error

---

[API](https://skmtc.net/siafoundation/apis/renterd-api.md) · [All operations](https://skmtc.net/siafoundation/apis/renterd-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/siafoundation/renterd-api/versions/184a3d5207da/schema)