import {
    getAssetsRecord,
    getBestRoute,
    getSwapMessages
} from 'rainbow-swap-sdk';

// 1. On page load: fetch the list of available tokens
const assetsRecord = await getAssetsRecord();

...

// 2. On input asset amount, input asset, or output asset change: fetch a new swap route
const params = {
  inputAssetAmount: '1000000000', // 1 TON in nano
  inputAssetAddress: 'ton', // TON
  outputAssetAddress: 'EQCxE6mUtQJKFnGfaROTKOt1lZbDiiX1kCixRv7Nw2Id_sDs' // USDT jetton master address
};
const bestRouteResponse = await getBestRoute(params);

...

// 3. Generate sign request messages & send it via @tonconnect
const userAddress = 'UQDGGjjuwhikx8ZPJsrLbKXGq7mx26D8pK_l8GqBejzB52Pa'; // user wallet address
const slippageTolerance = 2.5; // 2.5%

const swapMessages = await getSwapMessages(
    userAddress,
    bestRouteResponse.bestRoute,
    slippageTolerance
);

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

const {
    isSwapsEnabled, // true - if everything works fine
    message // explanations why swaps are disabled
} = await getAppStatus();