Subtitle API for translated SRT and VTT files

import time, requests

AUTH = "https://rask-prod.auth.us-east-2.amazoncognito.com/oauth2/token"
API  = "https://api.rask.ai"
token = requests.post(AUTH, auth=(CLIENT_ID, CLIENT_SECRET),
                      data={"grant_type": "client_credentials"}).json()["access_token"]
h = {"Authorization": f"Bearer {token}"}

pid = requests.post(f"{API}/v2/projects", headers=h,
                    json={"video_id": VIDEO_ID, "dst_lang": "de-de"}).json()["id"]
while (p := requests.get(f"{API}/v2/projects/{pid}", headers=h).json())["status"] != "merging_done":
    time.sleep(10)

# translated subtitles: download the files
open("video.de-de.vtt", "wb").write(requests.get(p["translation_vtt_path"]).content)

# original-language captions: build a WebVTT file from the transcript segments
segs = requests.get(f"{API}/v2/projects/{pid}/transcription", headers=h).json()["segments"]
cues = [f"{s['start'].replace(',', '.')} --> {s['end'].replace(',', '.')}\n{s['src']['text']}" for s in segs]
open("video.en.vtt", "w").write("WEBVTT\n\n" + "\n\n".join(cues) + "\n")

// no dependencies, Node 18+ global fetch
import { writeFile } from 'node:fs/promises';
const API = 'https://api.rask.ai';
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
const auth = await fetch('https://rask-prod.auth.us-east-2.amazoncognito.com/oauth2/token', {
  method: 'POST',
  headers: { Authorization: 'Basic ' + btoa(`${CLIENT_ID}:${CLIENT_SECRET}`) },
  body: new URLSearchParams({ grant_type: 'client_credentials' }),
}).then((r) => r.json());
const h = { Authorization: `Bearer ${auth.access_token}`, 'Content-Type': 'application/json' };
const call = (method, path, body) => fetch(API + path, { method, headers: h, body: body && JSON.stringify(body) }).then((r) => r.json());

const langs = ['es-mx', 'pt-br', 'ko-kr'];
const tracks = await Promise.all(langs.map(async (dst_lang) => {
  let p = await call('POST', '/v2/projects', { video_id: VIDEO_ID, dst_lang });
  while (p.status !== 'merging_done') { await sleep(10000); p = await call('GET', `/v2/projects/${p.id}`); }
  const file = `subs/${dst_lang}.vtt`;
  await writeFile(file, await ((await fetch(p.translation_vtt_path)).text()));
  return `<track kind="subtitles" srclang="${dst_lang}" src="/${file}">`;
}));
console.log(tracks.join('\n'));   // paste inside your <video> element

# 1. token (valid 1 hour - cache and reuse it)
TOKEN=$(curl -s -X POST https://rask-prod.auth.us-east-2.amazoncognito.com/oauth2/token \
  -u "$CLIENT_ID:$CLIENT_SECRET" -d "grant_type=client_credentials" | jq -r .access_token)

# 2. create the project for one subtitle language
ID=$(curl -s -X POST https://api.rask.ai/v2/projects \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  -d "{\"video_id\": \"$VIDEO_ID\", \"dst_lang\": \"it-it\"}" | jq -r .id)

# 3. wait for merging_done
until [ "$(curl -s https://api.rask.ai/v2/projects/$ID -H "Authorization: Bearer $TOKEN" | jq -r .status)" = merging_done ]; do
  sleep 10
done

# 4. save both subtitle files
P=$(curl -s https://api.rask.ai/v2/projects/$ID -H "Authorization: Bearer $TOKEN")
curl -s -o video.it-it.srt "$(echo $P | jq -r .translation_srt_path)"
curl -s -o video.it-it.vtt "$(echo $P | jq -r .translation_vtt_path)"

<?php
use GuzzleHttp\Client;

$http = new Client(['base_uri' => 'https://api.rask.ai']);
$json = fn($r) => json_decode($r->getBody(), true);
$auth = $json((new Client)->post('https://rask-prod.auth.us-east-2.amazoncognito.com/oauth2/token',
    ['auth' => [$clientId, $clientSecret], 'form_params' => ['grant_type' => 'client_credentials']]));
$h = ['Authorization' => 'Bearer ' . $auth['access_token']];

foreach (['es-mx', 'tr-tr'] as $lang) {
    $p = $json($http->post('/v2/projects', ['headers' => $h, 'json' => [
        'video_id' => $videoId, 'dst_lang' => $lang]]));
    while ($p['status'] !== 'merging_done') {
        sleep(10);
        $p = $json($http->get("/v2/projects/{$p['id']}", ['headers' => $h]));
    }
    // presigned links, valid for one hour
    file_put_contents("video.$lang.srt", file_get_contents($p['translation_srt_path']));
    file_put_contents("video.$lang.vtt", file_get_contents($p['translation_vtt_path']));
}