Request Upload Url

Request a presigned upload URL for direct client-side upload to R2.

This is the recommended upload flow:

1. Client calls this endpoint with filename and content_type
2. Backend creates a pending file record and returns presigned POST URL
3. Client uploads directly to R2 using the presigned URL
4. Client calls /confirm to verify upload and get actual file size

POST /api/v1/files/upload

Request Upload Url

Python

import requests

url = "https://www.datalab.to/api/v1/files/upload"

payload = {
    "filename": "<string>",
    "content_type": "<string>"
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

200

{
  "file_id": 123,
  "upload_url": "<string>",
  "reference": "<string>",
  "expires_in": 3600
}

Authorizations

X-API-Key · string · header · required

Cookies

wos-session · string

datalab_active_team · string

Body

application/json

Request to get a presigned upload URL.

filename · string · required

Original filename (used for R2 path and metadata)

content_type · string · required

MIME type of the file

Response

200

application/json

Successful Response

Response with presigned PUT URL for direct R2 upload.

file_id · integer · required

Unique file ID (use this to confirm upload)

upload_url · string · required

Presigned PUT URL to upload the file to

reference · string · required

File reference in datalab://file-{id} format

expires_in · integer · default: 3600

URL expiry time in seconds