Hi i should like to know if the fonction "swapQuoteConsumer.executeSwapQuoteOrThrowAsync(quote,{opt})" is depreciated in 0x protocol V4 or not ? i have a perdsistent "error Expected quote.orders to conform to schema /signedOrdersSchema" and i don't know where find le schema of "/signedOrdersSchema" thank you for help

1 Answer 1


Swap Quotes

 .methods.getAmountsOut(amountIn, [tokenIn, tokenOut]).call((error, amountsOut)         
 if (error) {
  console.log(`Error fetching swap quote: ${error}`);

 const amountOut = amountsOut[1];
 const priceImpact = 0.01; // 1% price impact
 const minAmountOut = amountOut * (1 - priceImpact);
 const swapQuote = {
tokenIn: tokenIn,
tokenOut: tokenOut,
amountIn: amountIn,
amountOutMin: minAmountOut,
deadline: deadline,
fee: fee

  import { Order, SignatureType, signatureUtils } from '0x.js';

  // Define the order parameters
 const order: Order = {
 makerAddress: '0x,
 takerAddress: '0x
 feeRecipientAddress: '0x
 senderAddress: '0x
 takerAssetAmount: '
  expirationTimeSeconds: , // UNIX timestamp 
  makerAssetData: , // token address
  takerAssetData: //  token address
  exchangeAddress: '0x
 chainId: 1

// Sign the order with a private key
const privateKey = '0x
const signature = signatureUtils.ecSignOrder(order, privateKey, 

  // Verify the signature
 const isValidSignature = signatureUtils.isValidOrderSignature(order, signature,  
 privateKey, SignatureType.EthSign);
 if (!isValidSignature) {
  throw new Error('Invalid signature');

  // Convert the order and signature to a signed orders object
  const signedOrders = [{ order, signature }];

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.