# SDK quickstart

<p class="page-description">Install Vyla SDK, resolve a source, and build a safe server-side integration.</p>

## Before you start

Vyla SDK is for **server-side Node.js**. It contains provider integrations and makes outbound requests from the process where you install it. Do not import it into a browser bundle or expose provider results, credentials, or internal source keys directly to untrusted clients.

You need Node.js 18 or later and, for sources that resolve title metadata, a TMDB API key.

## Install and initialize

:::code-group
```bash [npm]
npm install @vyla-entertainment/sdk
```
```bash [pnpm]
pnpm install @vyla-entertainment/sdk
```
```bash [yarn]
yarn add @vyla-entertainment/sdk
```
:::

```javascript
import VylaSDK from "@vyla-entertainment/sdk";

const vyla = new VylaSDK({
  tmdbApiKey: process.env.TMDB_API_KEY,
  penguManifest: process.env.PENGU_MANIFEST
});
```

:::callout-warning
Keep `TMDB_API_KEY` and any deployment configuration in server-side environment variables. Never commit them or send them to a client.
:::

## Resolve a movie

First inspect active providers. Provider availability changes over time, so select a key from the running configuration instead of hard-coding a placeholder.

```javascript
const providers = vyla.getSources(true);
console.table(providers.map(({ key, label }) => ({ key, label })));

const provider = providers[0];
const result = await vyla.getStream(provider.key, 155);
const candidates = result.allUrls ?? [result];

console.log(candidates.map(({ url, type, quality }) => ({ url, type, quality })));
```

`155` is a TMDB movie ID. For an episode, include season and episode:

```javascript
const result = await vyla.getStream(provider.key, 1396, 1, 1);
```

## Read manga

Search manga titles, retrieve chapter listings, and resolve reader-ready page images directly:

```javascript
const search = await vyla.searchManga("Steel Ball Run", 1, 5);
const firstResult = search.results[0];

const manga = await vyla.getManga(firstResult.id);
const firstChapter = manga.chapters[manga.chapters.length - 1];

const chapterData = await vyla.getMangaChapter(manga.id, firstChapter.id);
console.log(chapterData.pages.map(p => p.url));
```

## Make it resilient

Provider results are inherently variable: a source can fail, time out, return more than one candidate, or be temporarily disabled. In production:

1. Probe sources or maintain a recent availability signal before choosing one.
2. Give every provider call a request deadline in your application.
3. Treat `allUrls` as fallback candidates, not a guarantee that every URL will play.
4. Return only the fields your client needs and validate requests at your own API boundary.
5. Cache and rate-limit at your boundary to avoid repeatedly triggering upstream work.

```javascript
const health = await vyla.probeAllSources();
const usableKey = Object.entries(health).find(([, result]) => result.ok)?.[0];

if (!usableKey) throw new Error("No providers are currently available");

const stream = await vyla.getStream(usableKey, 155);
```

## Next steps

- Read the complete [SDK reference](/sdk) for methods and return shapes.
- Learn provider flags, timeout behavior, and source keys in [Providers](/concepts/providers).
- Choose [Stream API](/stream-api/overview) only when an SSE HTTP interface better fits your client architecture.