curl --request POST \
  --url https://api.videobase.com/v1/subtitles/upload \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-Api-Key: <api-key>' \
  --form id=a1b2c3d4e5f6 \
  --form 'language=<string>' \
  --form file='@example-file'

const form = new FormData();
form.append('id', 'a1b2c3d4e5f6');
form.append('language', '<string>');
form.append('file', '<string>');

const options = {method: 'POST', headers: {'X-Api-Key': '<api-key>'}};

options.body = form;

fetch('https://api.videobase.com/v1/subtitles/upload', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.videobase.com/v1/subtitles/upload"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = {
    "id": "a1b2c3d4e5f6",
    "language": "<string>"
}
headers = {"X-Api-Key": "<api-key>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

{
  "subtitle": {
    "language": "<string>",
    "url": "<string>"
  }
}

{
  "message": "File not found",
  "status": 500
}