Questions tagged [0x]

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Is it possible to pass arguments obtained in a web3 app to a smart contract and then call it?

I have this transaction that I got from a response from the 0x protocol, is it possible to pass it as an argument to a function within a smart contract?
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1answer
12 views

Cost to cancel or change an unfilled Augur order

With the launch of Augur v2, what is the cost to cancel a previously entered order that has not yet been filled? Is this cost the same as the cost to modify the order by changing the bid, ask or ...
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1answer
35 views

How to decode an Ethereum transaction input of an 0x transaction

The input data is very large. I believe there are multiple functions called. Can I just hash each of the functions in the ABI, get the 6 characters and compare them to the first six characters of the ...
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0answers
19 views

How to customize my own 0x exchange

I would like to know how my custom ERC721 0x marketplace can be customized. I know the FAQ has a walkthrough and I already found out how to inject my custom ERC20 token address, symbols etc. but I ...
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0answers
30 views

custom ERC20 token balance does not show up on my own 0x exchange

I created my own 0x exchange according to the 0x Launch kit and the FAQ. I could add my newly created, custom ERC20 token to my 0x exchange, the token appears and I could even buy/sell them. The ...
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1answer
65 views

Getting “Tokens Unavailable” in 0X instant

I have deployed both 0x-launch-kit-backend and 0x-launch-kit-frontend in my local system I can able to create a sell order. It is listed in orders I am running things in Ropsten Testnet In 0X Instant ...
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1answer
158 views

how to add my custom token to 0x protocol in testnet/mainnet

I am new to the 0x protocol. Is it possible to add custom token using 0x Portal DApp?. Share any example or document. I have deployed my own exchange medium. it is running in http://localhost:3001 I ...
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1answer
81 views

Converting Log Topics to int64 correctly in Go

I currently use the code below to extract the ERC721 Token ID from Transfer Event Logs: txHash := newLog.TxHash.Hex() hexString := common.BytesToAddress(newLog.Topics[3].Bytes()).Hex() flowerNum, _ :=...
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1answer
193 views

0x: Is it possible to fill an order from a smartcontract?

When I try to fill an order with funds from a contract I get the following generic error: Error: Transaction: 0x1d3161cd7f318c3b0b28fc34b2c6bca0cbf4efdb3b11fcf7ec3af7c9adfd821b exited with an ...
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1answer
93 views

ecSignHashAsync() giving INVALID_SIGNATURE Error

I'm trying to create an order in 0x but when I try to sign the order I get INVALID_SIGNATURE error? I'm using 0x version 2 onSubmit = async (event) => { event.preventDefault(); const { ...
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0answers
125 views

Is http://zrx.plus a legit site to claim my 0x exchange tokens? [closed]

Is http://zrx.plus/ a legit site to claim my 0x coins? What are some precautions to have before claiming my air drop?
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0answers
112 views

call zeroEx.exchange.fillOrderAsync throw Error: Contract call failed (returned null)

I have created order ,but when I call fillOrderAsync encounter a error. Contract call failed (returned null),Help me please! fillOrder.callAsync { from: '0xe9c6f611639f1cb7b23af24a3519385f6b8d4c91', ...
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1answer
330 views

what is the role of relayer in 0x protocol?

I understand that 0x protocol allows orders to be transmitted across off chain channel to reach large audience and potential buyers/sellers. However, I don't get what a Relayer is exactly.
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0answers
121 views

Tracking orders on 0x network

How are the various 0x network order trackers sourcing on-chain settlement data? My first assumption was that they were utilising the Etherscan API, however Etherscan have their own tracker, found at ...
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1answer
244 views

Decentralized Exchanges with Market Orders

My goal is to make a market order (sell/buy) from a smart contract without a centralized app feeding in the order data. E.g. buy token X for 1 ETH at current market. 0x Project So far I stumbled ...