Questions tagged [0x]
The 0x tag has no usage guidance.
17
questions
0
votes
0answers
33 views
Unsure why my 0x transaction failed (more details inside)
I've written a simple contract tries to swap a few 0x pairs, for doing simple arbs or other 3 way trades.
However, when I get the quotes from their API https://0x.org/docs/api (in serial, which takes ...
0
votes
1answer
47 views
How to calculate the right amount of a token to use in 0x quote endpoint
I'm trying to use 0x to buy tokens with ETH. I'm following the sample at https://0x.org/docs/guides/swap-tokens-with-0x-api#swap-eth-for-1-dai.
I got the token address, and the decimals. let's say ...
1
vote
0answers
31 views
What is the method to send a transaction with data from solidity?
Sorry for the noob question, but Im trying to understand some definitions and clarify the limits between solidity, web3, etc. I have obtained a tx looking like the following from the 0x API:
b'{"...
0
votes
0answers
43 views
How can I pass an unsigned transaction to a smart contract?
I have an unsigned transaction that I got from the 0x API in my web3 app. I would like to pass it as an argument to a function within a smart contract, is this doable? how? I already read about a ...
0
votes
1answer
27 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 ...
0
votes
1answer
242 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 ...
1
vote
0answers
35 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 ...
0
votes
1answer
87 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 ...
0
votes
1answer
265 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 ...
0
votes
1answer
127 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, _ :=...
1
vote
1answer
316 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
106 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 { ...
1
vote
0answers
127 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
vote
0answers
127 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',
...
1
vote
1answer
356 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
votes
0answers
125 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 ...
6
votes
1answer
730 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 ...
