# Source: https://polar.sh/docs/integrate/sdk/typescript.md

> ## Documentation Index
> Fetch the complete documentation index at: https://polar.sh/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# TypeScript SDK

> SDK for JavaScript runtimes (Node.js and Browser)

## Examples

* [With Node.js](https://github.com/polarsource/examples/tree/main/with-nodejs)

## Installation

<Tabs>
  <Tab title="npm">
    ```bash Terminal theme={null}
    npm install @polar-sh/sdk
    ```
  </Tab>

  <Tab title="yarn">
    ```bash Terminal theme={null}
    yarn add @polar-sh/sdk
    ```
  </Tab>

  <Tab title="pnpm">
    ```bash Terminal theme={null}
    pnpm add @polar-sh/sdk
    ```
  </Tab>
</Tabs>

## Quickstart

```typescript icon="square-js" index.js theme={null}
import { Polar } from '@polar-sh/sdk'

const polar = new Polar({
  accessToken: process.env.POLAR_ACCESS_TOKEN,
  server: process.env.POLAR_MODE || 'sandbox' // sandbox or production
})

async function run() {
  const result = await polar.users.benefits.list({})
  for await (const page of result) {
    // Handle the page
    console.log(page)
  }
}

run()
```

<Note>
  **camelCase vs. snake\_case**

  Our API (and docs) is designed with `snake_case`. However, our TS SDK currently
  converts this to camelCase to follow JS/TS convention. You should automatically
  see the camelCase parameters suggested in modern IDEs due to typing, but it's
  worth keeping in mind switching between code & docs.

  We aim to introduce the ability to toggle this in the future, i.e using
  `snake_case` even in TypeScript to more easily map it to our documentation and
  design of the API itself.
</Note>

### Framework Adapters

Implement Checkout & Webhook handlers in few lines of code.

* [Astro](/integrate/sdk/adapters/astro)
* [Better Auth](/integrate/sdk/adapters/better-auth)
* [Deno](/integrate/sdk/adapters/deno)
* [Elysia](/integrate/sdk/adapters/elysia)
* [Express](/integrate/sdk/adapters/express)
* [Hono](/integrate/sdk/adapters/hono)
* [Fastify](/integrate/sdk/adapters/fastify)
* [Next.js](/integrate/sdk/adapters/nextjs)
* [Nuxt](/integrate/sdk/adapters/nuxt)
* [Remix](/integrate/sdk/adapters/remix)
* [Sveltekit](/integrate/sdk/adapters/sveltekit)
* [TanStack Start](/integrate/sdk/adapters/tanstack-start)