Tegro Swap SDK

This SDK is designed for building applications - Swap Aggregator on TON blockchain 💎.

Installation

You can install the Tegro Swap SDK using either npm or Yarn:

Using npm:

npm install tegro-swap-sdk

Using Yarn:

yarn add tegro-swap-sdk

Integrate Your dApp

Example: Swapping 1.35 TON to USDT

import {getAssetsList, getBestRoute, toNano} from 'tegro-swap-sdk';

// 1. Load the list of available tokens
const assetsList = await getAssetsList({
    userAssets: [] // Array of asset addresses the user holds; see AssetsListParams for more details.
});

// Retrieve specific assets by their address
const inputAsset = assetsList.find(asset => asset.address === 'ton');
const outputAsset = assetsList.find(asset => asset.address === 'EQCxE6mUtQJKFnGfaROTKOt1lZbDiiX1kCixRv7Nw2Id_sDs');

// 2. Load the best swap route and swap messages
const bestRouteResponse = await getBestRoute({
    inputAssetAmount: toNano('1.35', inputAsset.decimals).toString(), // Convert 1.35 TON to nano format
    inputAssetAddress: inputAsset.address,
    outputAssetAddress: outputAsset.address,
    senderAddress: 'UQDGGjjuwhikx8ZPJsrLbKXGq7mx26D8pK_l8GqBejzB52Pa', // Optional user wallet address; if set, swap messages will be returned
    partnerId: 'demo-partner' // Optional unique identifier in our App Developer Partnership program
});

// 3. Sign and send messages to the blockchain to execute the swap.
// This example uses the React UI client. For other frameworks, refer to https://docs.ton.org/develop/dapps/ton-connect/overview
import {useTonConnectUI} from '@tonconnect/ui-react';

const [tonConnectUI] = useTonConnectUI();

const result = await tonConnectUI.sendTransaction({
    validUntil: Math.floor(Date.now() / 1000) + 60, // 60 seconds from now
    messages: bestRouteResponse.swapMessages
});

Application Status Check

You may want to check the status of your application to ensure everything is functioning correctly. For example, temporarily disable swaps if block production on TON is disrupted due to an external event like the DOGS listing.

import {getAppStatus} from 'tegro-swap-sdk';

const {
    isSwapsEnabled, // true if everything is working fine
    message // Explanation of why swaps are disabled, if applicable
} = await getAppStatus();

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.