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

// 1. Load the list of available tokens
const assetsRecord = await getAssetsRecord();

...

// 2. Load the best swap route & swap messages
const params = {
  inputAssetAmount: '1000000000', // 1 TON in nano
  inputAssetAddress: 'ton', // TON
  outputAssetAddress: 'EQCxE6mUtQJKFnGfaROTKOt1lZbDiiX1kCixRv7Nw2Id_sDs', // USDT jetton master address
  maxDepth: 2, // optional number of maximum route length (should be in range from 1 to 3)
  userAddress: 'UQDGGjjuwhikx8ZPJsrLbKXGq7mx26D8pK_l8GqBejzB52Pa', // optional user wallet address, if set - swapMessages will return
  slippageTolerance: 5 // optional max slippage value (should be in range )
};

const bestRouteResponse = await getBestRoute(params);

const bestRoute = bestRouteResponse.bestRoute; // Route of the best possible swap route
const swapMessages = bestRouteResponse.swapMessages; // Array of messages that should be sent to @tonconnect

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

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