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Questions tagged [0x]

The tag has no usage guidance.

0
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0answers
18 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
44 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 ...
0
votes
1answer
38 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
99 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?
1
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0answers
74 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', ...
0
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0answers
66 views

DEX development and the different protocols

suppose I want to create/develop a decentralized exchange, the option I have are: - create the front-end, use 0x protocol for the smart contract part and create a relayer and be part of the 0x DEXs ...
1
vote
1answer
185 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.
2
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0answers
96 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 ...
5
votes
1answer
173 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 ...