# SDK Libraries

**TronsaveSDK** is a TypeScript library that helps you easily interact with the Tronsave API to manage resources (ENERGY/BANDWIDTH) on the TRON blockchain. This SDK provides robust, strongly-typed functions and can be integrated into modern backend systems.

## Node.js SDK

Supports **Node.js v18.0.0 or higher**.

```bash
npm install tronsave-sdk
```

or

```bash
yarn add tronsave-sdk
```

### [View Tronsave SDK npm](https://www.npmjs.com/package/tronsave-sdk)

## Basic Usage <a href="#basic-usage" id="basic-usage"></a>

*Example:*

{% tabs %}
{% tab title="Node.js" %}

```javascript
import { TronsaveSDK } from "tronsave-sdk";

const main = async () => {
    const apiKey = "your_api_key";
    const sdk = new TronsaveSDK({ network: "testnet", apiKey });
    const userInfo = await sdk.getUserInfo();
    console.log(userInfo);
    // Example: Estimate cost for 32,000 ENERGY units for 1 hour
    const estimate = await sdk.estimateBuyResource({
        receiver: "TAk6jzZqHwNUkUcbvMyAE1YAoUPk7r2T6h",
        resourceType: "ENERGY",
        durationSec: 3600, // 1 hour
        resourceAmount: 32000,
    });
    console.log(estimate);
    if (estimate.estimateTrx > Number(userInfo.balance)) throw new Error("Insufficient balance");
    const { orderId } = await sdk.buyResource({
        receiver: "TAk6jzZqHwNUkUcbvMyAE1YAoUPk7r2T6h",
        resourceType: "ENERGY",
        durationSec: 3600, // 1 hour
        resourceAmount: 32000,
    });
    console.log(`Buy resource success -> orderId: ${orderId}`);
    // Wait for 5 seconds for the order to be filled
    console.log("Waiting for 5 seconds for the order to be filled...");
    await new Promise((resolve) => setTimeout(resolve, 5000));
    const order = await sdk.getOrder(orderId);
    console.log(order);
    if (order.fulfilledPercent < 100) console.log("Order is not filled");
    else console.log("Order is filled");
};

main();
```

{% endtab %}
{% endtabs %}

## Features <a href="#features" id="features"></a>

All our SDKs provide the following features:

* **Buy Resource:** Buy resources
* **Estimate Buy Resource:** Estimate resource purchase cost
* **Extend Request:** Extend resource requests
* **Get Extendable Delegates:** Get the list of extendable delegates
* **Get User Info:** Fetch user information
* **Get Order, Get Orders:** Fetch order details
* **Get Order Book:** Get order book