POST
/api/v1/prepare-uploadPrepare upload session
Request
{
"files": [
{
"id": "avatar-png",
"name": "avatar.png",
"size": 248120,
"sha256": "9b2f..."
}
],
"sender": {
"id": "design-macbook",
"name": "Design MacBook"
}
}Response
{
"session_id": "local-17162001",
"token": "upload-token",
"accepted_files": ["avatar-png"]
}