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 is invalid.",
  "status": 400,
  "code": "validation_error",
  "detail": "One or more fields are invalid.",
  "instance": "/v2/orders",
  "request_id": "req_01k1a2b3c4d5e6f7g8h9j0k1m2",
  "errors": [
    {
      "path": "items.0.vin",
      "code": "invalid_length",
      "message": "The VIN must contain 17 characters."
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 499,
  "instance": "<string>",
  "request_id": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>"
    }
  ]
}