---
title: "Initialize a multipart media upload"
method: POST
path: "/workspace/media/upload/multipart/init"
tags: ["Media Library"]
---

# Initialize a multipart media upload

`POST /workspace/media/upload/multipart/init`

## Request

- Base URL: `https://blitzreels.com/api/v1`
- URL: `https://blitzreels.com/api/v1/workspace/media/upload/multipart/init`
- Auth: API key in header `Authorization`

Initialize a multipart media upload.

## Request body

- object
  - `file_name` string, required
  - `content_type` string, required
  - `file_size_bytes` integer, required

## Response `200`

Successful response

- object
  - `storage_key` string, required
  - `upload_id` string, required
  - `part_size_bytes` integer, required

## Other responses

- `400`: Invalid input data
- `401`: Authorization not provided
- `403`: Insufficient access
- `500`: Internal server error

---

[API](https://skmtc.dev/blitzreels/apis/blitzreels-api.md) · [All operations](https://skmtc.dev/blitzreels/apis/blitzreels-api/llms.txt) · [OpenAPI document](https://skmtc.dev/blitzreels/apis/blitzreels-api/revisions/35608b12471d?raw)