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POST
/
filesystem-multipart
/
initiate
/
{path}
Initiate multipart upload
curl --request POST \
  --url https://sbx-{sandbox_id}-{workspace_id}.{region}.bl.run/filesystem-multipart/initiate/{path} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "permissions": "0644"
}
'
{
  "path": "/tmp/largefile.dat",
  "uploadId": "550e8400-e29b-41d4-a716-446655440000"
}

Documentation Index

Fetch the complete documentation index at: https://docs.blaxel.ai/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

​
path
string
required

File path

Body

application/json

Optional permissions

​
permissions
string
Example:

"0644"

Response

Upload session created

​
path
string
Example:

"/tmp/largefile.dat"

​
uploadId
string
Example:

"550e8400-e29b-41d4-a716-446655440000"

Last modified on May 27, 2026