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Brokerbot Quoter

A UniswapV3 Quoter like interface to get prices

Deployment addresses


Get a quote with ethers v5

Set up

import { ethers } from "ethers";
const baseCurrencyAddress = "0xb4272071ecadd69d933adcd19ca99fe80664fc08";
const shareAddress = "0x6f38e0f1a73c96cb3f42598613ea3474f09cb200";
const brokerbotQuoterAddress = "0xcB3e482df38d62E73A7aE0E15a2605caDcc5aE98";
const brokerbotQuoterABI = [
"function quoteExactOutputSingle(address tokenIn, address tokenOut, uint24 /*fee*/, uint256 amountOut, uint160 /*sqrtPriceLimitX96*/) view returns (uint256 amountIn)",
"function quoteExactInputSingle(address tokenIn, address tokenOut, uint24, amountIn, uint160) view returns (uint256 amountOut)"
const amountOfShares = 100;
async function main() {
// get a RPC provider
const ethersProvider = new ethers.providers.InfuraProvider();
// get a signer
const wallet = ethers.Wallet.createRandom().connect(ethersProvider);
// get contract instances
const quoterContract = new ethers.Contract(brokerbotQuoterAddress, brokerbotQuoterABI, wallet);
///.... include here the example calls
.then(() => process.exit(0))
.catch((error) => {

Getting quote for buying shares

const quoteBuy = await quoterContract.quoteExactOutputSingle(baseCurrencyAddress, shareAddress, 0, 100, 0);
console.log(`Quote for buying 100 shares: ${ethers.utils.formatUnits(quoteBuy, 18)} XCHF`);

Getting quote for selling shares

const quoteSell = await quoterContract.quoteExactInputSingle(shareAddress, baseCurrencyAddress, 0, 100, 0);
console.log(`Quote for selling 100 shares: ${ethers.utils.formatUnits(quoteSell, 18)} XCHF`);Some code

Getting quote for buying shares with USDC and a Uniswap path

const types = ["address", "uint24","address","uint24","address","uint24","address"];
const values = [daksAdr, 0, config.baseCurrencyAddress, 100, dchfAdr, 500, config.usdcAddress];
const path = ethers.utils.solidityPack(types,values);
const quoteBuyUsdc = await quoterContract.callStatic["quoteExactOutput(bytes,uint256)"](path, 10);
console.log(`Quote for buying 10 DAKS shares: ${ethers.utils.formatUnits(quoteBuyUsdc, 6)} USDC`);

Getting quote for selling shares for USDC and a with Uniswap path

const quoteSellUsdc = await quoterContract.callStatic["quoteExactInput(bytes,uint256)"](path, 10);
console.log(`Quote for selling 10 DAKS shares: ${ethers.utils.formatUnits(quoteSellUsdc, 6)} USDC`);

Full example code