Create upload session for existing file

post
https://upload.box.com/api/2.0
/files/:file_id/upload_sessions

Creates an upload session for an existing file.

Request

bearer [ACCESS_TOKEN]
application/json

Path Parameters

stringin pathrequired
12345

The unique identifier that represents a file.

The ID for any file can be determined by visiting a file in the web application and copying the ID from the URL. For example, for the URL https://*.app.box.com/files/123 the file_id is 123.

Request Body

stringin bodyoptional
"Project.mov"

The optional new name of new file

integer / int64in bodyrequired
104857600

The total number of bytes of the file to be uploaded

Response

application/jsonUpload session

Returns a new upload session.

application/jsonClient error

Returns an error if the file already exists, or if the account has run out of disk space.

application/jsonClient error

An unexpected client error.

post
Create upload session for existing file
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Request Example

cURL
curl -i -X POST "https://api.box.com/2.0/files/12345/upload_sessions" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "file_size": 104857600
     }'
Python
file_size = 26000000
upload_session = client.file('11111').create_upload_session(file_size)
print(f'Created upload session {upload_session.id} with chunk size of {upload_session.part_size} bytes')

Response Example

{
  "id": "F971964745A5CD0C001BBE4E58196BFD",
  "type": "upload_session",
  "num_parts_processed": 455,
  "part_size": 1024,
  "session_endpoints": {
    "abort": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD",
    "commit": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD/commit",
    "list_parts": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD/parts",
    "log_event": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD/log",
    "status": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD",
    "upload_part": "https://upload.box.com/api/2.0/files/upload_sessions/F971964745A5CD0C001BBE4E58196BFD"
  },
  "session_expires_at": "2012-12-12T10:53:43-08:00",
  "total_parts": 1000
}