Create a file upload

curl --request POST \
  --url https://sandbox.api.bahnexpress.fi/v2/files \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "name": "pickup-release-document.pdf",
  "category": "customer_document",
  "media_type": "application/pdf",
  "size_bytes": 48211
}
'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    name: 'pickup-release-document.pdf',
    category: 'customer_document',
    media_type: 'application/pdf',
    size_bytes: 48211
  })
};

fetch('https://sandbox.api.bahnexpress.fi/v2/files', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sandbox.api.bahnexpress.fi/v2/files"

payload = {
    "name": "pickup-release-document.pdf",
    "category": "customer_document",
    "media_type": "application/pdf",
    "size_bytes": 48211
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "file_id": "file_01k1a2b3c4d5e6f7g8h9j0k1m2",
  "upload": {
    "method": "POST",
    "url": "https://upload.example.invalid/customer-file",
    "fields": {
      "key": "customer-api/example/file",
      "Content-Type": "application/pdf"
    },
    "expires_at": "2026-07-30T14:15:00Z"
  }
}

{
  "type": "https://api.bahnexpress.fi/problems/validation-error",
  "title": "The request body is not valid JSON.",
  "status": 400,
  "code": "validation_error",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2"
}

{
  "type": "https://api.bahnexpress.fi/problems/authentication-failed",
  "title": "The access token is not valid.",
  "status": 401,
  "code": "authentication_failed",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2"
}

{
  "type": "https://api.bahnexpress.fi/problems/permission-denied",
  "title": "The access token does not have the required scope.",
  "status": 403,
  "code": "permission_denied",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2",
  "detail": "The orders:write scope is required."
}

{
  "type": "https://api.bahnexpress.fi/problems/idempotency-conflict",
  "title": "The file upload could not be created.",
  "status": 409,
  "code": "idempotency_conflict",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2",
  "detail": "The idempotency key was used for a different operation."
}

{
  "type": "https://api.bahnexpress.fi/problems/file-too-large",
  "title": "The file is too large.",
  "status": 413,
  "code": "file_too_large",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2",
  "detail": "The file must not exceed 12582912 bytes."
}

{
  "type": "https://api.bahnexpress.fi/problems/internal-error",
  "title": "The server could not complete the request.",
  "status": 500,
  "code": "internal_error",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2"
}

{
  "type": "https://api.bahnexpress.fi/problems/internal-error",
  "title": "The server could not complete the request in time.",
  "status": 503,
  "code": "internal_error",
  "instance": "/v2/files",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2"
}