Questions tagged [exchanges]
places to trade ether with other currencies or assets
271
questions
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1
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25
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How to exchange one nft for another from a different contract?
I have 2 ERC1155 contracts, and am looking to transfer nft2 into nft1's wallet upon checking wallet holds nft1, but not sure what I'm doing wrong.
This is my nft1 contract:
import "./NFT2.sol&...
- 1
0
votes
0
answers
30
views
Determining the Percentage of Uniswap V3 Trading Volume from Arbitrageurs vs Regular Traders
I am trying to understand the trading dynamics on Uniswap V3. Specifically, I am interested in finding out what percentage of the trading volume on Uniswap V3 comes from arbitrageurs versus regular ...
- 1,408
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votes
2
answers
73
views
How to know total value of buying and selling of a wallet via web3
I want to know how much a wallet has bought and sold the assets. I need to know it in dollars. For example, 500$ of assets bought and sold by a wallet
Something like this is possible in web3?
- 289
0
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0
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81
views
How to calculate "amountOutMin" on some DEX-es?
There's a function in a contract on HOT-protocol exchange
sendToL2( uint256 chainId, address recipient, uint256 amount, uint256 amountOutMin, uint256 deadline, address relayer, uint256 relayerFee )
...
- 91
0
votes
1
answer
32
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What exactly is 'supply' on the 'supply vs demand' equation to determine the price of a token?
We know that the price of a token is always a balance between supply and demand. Whenever I check what supply is, I get vague definitions. So I would like to hear your opinions about what exactly ...
- 119
1
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1
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28
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Trying to convert INR value to equivalent Eth (wei)
I'm trying to write a smart contract that takes INR as user input and converts it to equivalent eth ( wei ). I looked into chainlink datafeeds, but no luck there. Need advice on how to implement this. ...
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32
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Bitstamp withdrawal to my metamask, amount not credited to my balance, in etherscan only "internal transactions" it shows
Hello i have withdrawn eth from bitstamp to my metamask.
on etherscan the withdrawal is shown in "internal transactions".
But the eth isnt credited to my balance..
how can i fix this ?
Thx
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1
answer
33
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Kraken Japan is shutting down on the 31st Jan 2023, How to get staked Ethereum out?
Kraken (kraken.com) announced on the 28th of December that it's shutting down its Japan services. All accounts will be closed and any remaining funds will need to be retrieved from the Govt.
I have ...
- 111
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votes
2
answers
130
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On-chain privacy - centralised exchange that offers fresh deposit address?
I'm a customer of Binance.
I have the same deposit address.
Someone asking: https://stackoverflow.com/questions/63794922/how-generate-new-deposit-tether-address-in-binance
You can reach out to ...
- 971
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0
answers
76
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How can I find out the crypto exchange name from the below ERC20 crypto address?
How can I find out the crypto exchange name from the below ERC20 crypto addresses?
I) 0xc261b02dafbe844b6b30d96bcaba14f2a04e3cc8
II) 0x699076cBd255C4e1F779C7e3CAstrong textE88e09846aDF83
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-1
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2
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59
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Procedure for getting a crypto exchange to freeze and apprehend a whale scammer?
Traced a wallet funneling embezzled funds to a wallet on a centralized exchange using the peel-chain strategy. It's accumulated thousands of stolen bitcoin for almost a decade and still is!
How to ask ...
- 1,486
0
votes
1
answer
1k
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How to go from v3 to v2 on Uniswap?
There are tokens that offer a better exchange rate in version 2.
Uniswap used to offer a friendly way to switch between versions.
- 173
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1k
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multiple addresses for ethereum wallet
Creating smth like a crypto broker and faced problem - erc-20 wallets does not support multi addresses. For example bitcoin wallets provide opportunity to create a lot of public keys, so we can make a ...
1
vote
1
answer
91
views
Set a minimum price an NFT can be listed on exchanges for
Is it possible to have a minimum price for a ERC721 contract that would prevent the token being traded on exchanges if listed below that set price. (Not the mint price of the token itself)
Say an item ...
- 11
0
votes
2
answers
57
views
Do binance trades happen on the blockchain?
When I trade (ethereum based) tokens on binance, do the tokens actually trade on the blockchain, or does binance just change the ownership in an internal database and only invokes the blockchain when ...
- 133
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1
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323
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How to set price to NFT token and update that price?
I want to create a market place of nfts. I know how to mint and creat nft but I dont know how to set price of token, how to set list of orders. I read that the price should be set on token contract ...
- 101
0
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1
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36
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What are DEX and CEX used for?
DEX: Decentralized EXchanges
CEX: Centralized EXchanges
My questions are:
what are DEX and CEX used for?
how does them work?
0
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1
answer
42
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Are wallet addresses in the crypto exchange website actual ethereum accounts?
a newbie here,
I am trying to understand how ethereum based CEX's work. Users create accounts/wallet addresses (not email-linked user accounts) on the exchange. Are those addresses actual ethereum ...
- 17
0
votes
1
answer
45
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Did I get it right about how centralized ethereum crypto exchanges work?
a newbie here,
I have a question about how centralized ethereum-based crypto exchanges facilitate external transactions.
Please, tell me if I understood the process right, and if not, could you please ...
- 17
1
vote
2
answers
74
views
Does a crypto exchange website need to run its ethereum node?
I am learning about ethereum-based crypto exchanges, and I tend to 'scratch my head' often.
Does a crypto exchange website need to run its ethereum node? (Is it necessary for the ethereum server to ...
- 17
0
votes
2
answers
982
views
Is there any Uniswap quote function for on-chain calls?
I want to expect how much input tokens should be spent to get exact amount of output token on Uniswap V3.
Uniswap V2 has router.getAmountsIn() to expect it.
V3 supports quote interface but it is ...
- 15
1
vote
1
answer
415
views
How to exchange DAI to ETH without paying fee in ETH?
I was trying to exchange my DAI stablecoins to other token, but for that I needed ETH to pay commission. All my assets are in stablecoins and I can not even exchange them to ETH on Uniswap or 1Inch ...
0
votes
0
answers
168
views
ERC20 "transferFrom" not transferring balance/token to contract address
I am trying to make a DEX and facing an issue in swapping. I created two contracts. One is Token (of ERC20 type) and other is Exchange. Here is my Token contract.
contract Token is ERC20 {
address ...
1
vote
1
answer
181
views
How to track the crypto payment made to specified address on ethereum?
I have created different ethereum wallet address for each user registred on exchange .
Now the problem is user can deposit crypto at any time and we have to reflect the balance in user account and ...
- 23
3
votes
3
answers
1k
views
How the centralized exchanges handle deposits?
'Greetings!
I am wondering if anyone is aware of the structure that is used by centralized exchanges like Binance, Coinbase, KuCoin, etc. to handle their ETH/ERC20 Tokens deposits.
I started to ...
0
votes
0
answers
1k
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How to indirectly convert Monero to Ethereum in MetaMask?
Obviously MetaMask only deals in ERC-20 tokens, which means MetaMask doesn't recognize Monero, but indirectly, how can one send/swap/convert Monero funds to an Ethereum hot wallet?
The idea is to load ...
- 1,486
1
vote
1
answer
232
views
How are Uniswap fees distributed equally factoring in both proportion and duration pooled?
A similar question has already been asked, however a satisfactory answer has not yet been provided. The Uniswap V2 Pools docs states:
If the provider is minting a new pool, the number of liquidity ...
- 1,408
0
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1
answer
243
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Token Price on Swap and CEX/DEX
My question is actually almost similar with this one :
How to keep the token price in uniswap the same with the centralized exchange
I want to know how to sync token price more deeply :
From the link ...
- 151
1
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0
answers
38
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how do exchanges move their users assets?
do big exchanges move their users assets from HD wallets different dresses to a main wallet address ? to eventually move it to cold wallet ? if the answer is YES how do they do it? that's a lot of on ...
- 11
0
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0
answers
63
views
exchange gather all hd wallet adresses fund
every exchange has a HD wallet that stores the fund an assets of their clients but sometimes in order to keep peoples coins safe the exchanges have to move their assets to more secure wallet like ...
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2
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0
answers
85
views
Can anyone explain how crypto exchange deposit works?
I've been trying to understand how different exchanges manage their deposit address pool. When you deposit funds to address given by any exchange(FTX, Binance, etc) they immediately transfer that ...
- 21
6
votes
3
answers
1k
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Is it secure to read USD / ETH rate from exchanges directly without using price oracles?
Is it possible to read USD/ETH rate directly from some known smart contract without an oracle?
I have a working solution via an oracle. However, my client says it should be possible to read the ...
- 340
1
vote
1
answer
55
views
Is it possible to purchase Ethereum with USD command line?
I opened a wallet using go-ethereum with this command
geth new account
Am I able to saturate this account by purchasing Ethereum with USD via the command-line? Are you usually charged a fee or can ...
- 113
0
votes
0
answers
95
views
How to add my ERC20 Token to exchanges so others can trade? Best ways for 2021 and Beyond
(To start, I acknowledge there are some q&a's on this topic already, but I found they are roughly 3+ years old.)
I have an ERC20 token launching alongside a dapp and I'd like to be able to have it ...
- 158
0
votes
1
answer
36
views
Does a bridge always necessitates creating an intermediate token?
When one creating a so-called bridge in order to exchange a coin on one blockchain to a coin on a different blockchain, how does it work?
Does it always necessitate creating an intermediate token - LT ...
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0
votes
0
answers
345
views
Can I reset the initial set price for erc20 token on uniswap?
I am relatively new to cryptocurrency and wanted to try listing an erc20 token. I listed my erc20 token on Uniswap and set its initial price while adding the first liquidity. Later, I wanted to change ...
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1
answer
85
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Erc-20 token help
I am new to erc20 tokens, so I was wondering if I could have some help. I'm considering starting an erc20 token and I have one main question. When someone buys my erc20 token, does the Ethereum they ...
1
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1
answer
20
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Can someone help me understand what this address is? has a lot of weird transactions. I am trying to track a scammer
How can I find out a specific address that belongs to which exchange? I am trying to track a scammer. my tokens were stolen and transferred to this address: 0xf629cbd94d3791c9250152bd8dfbdf380e2a3b9c
...
- 11
1
vote
0
answers
104
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How can exchanges afford to offer free deposits for ETH and ERC-20 tokens?
The question has been asked previously but the accepted answer does not hold a candle to reality:
In both cases, the exchange pays the gas fee to send the tokens to the
hot wallet. That's why the ...
- 121
0
votes
0
answers
51
views
How do I build an exchange on top of ERC721?
I want to build an exchange that allows users to list existing ERC721 tokens. The problem is that I have looked at Wyvern and don't really understand it. I've seen smaller protocols (such as zora) but ...
- 21
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1
answer
576
views
Uniswap price oracle
How can I access the Uniswap exchange rate for a specific pool? For example purposes lets assume I'm trying to find ETH to AAVE.
- 97
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1
answer
6k
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The transaction cannot succeed due to error: execution reverted: PancakeRouter: INSUFFICIENT_OUTPUT_AMOUNT
Why i cant exchange my fckn tokens on pancakeSwap?
- 143
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2
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562
views
Who pays gas fee for ERC-20 token transactions in exchanger?
i am developing an exchanger as a hobby project in next js. I am just starting to learn about blockchain. I am generating new deposit ethereum addresses for every user. Now my main confusion is, when ...
- 163
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1
answer
296
views
Failing to fill 0x quote
I'm trying to fill a quote that I get from the 0x API:
const qs = createQueryString({
sellToken: 'TUSD',
buyToken: 'WETH',
sellAmount: BigInt(882693 * 10 ** 18)
});
..but the transaction ...
- 711
0
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1
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238
views
How do obtain wrapped btc and wrapped ada in a local test network or a live test network like ropsten?
In the local test network and ropsten test network, it's easy to obtain ethereum but I need other tokens in order to do testing. I'm not sure how to obtain those tokens for testing.
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0
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150
views
How to query DyDx liquidations from ethereum blockchain?
As far as I understand, all the exchanges like DyDx, Uniswap, Sushiswap etc. are actually contracts deployed on blockchain. So their data should be accessible to anyone having the chain downloaded. (...
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1
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2k
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Automatically generate an address for a token in the ERC20 and TRC20 network [duplicate]
How to create USDT TRC20 and ERC20 addresses for my wallet automatically via an api.
I need to create USDT TRC20 and ERC20 addresses for a small exchange so that users can deposit their tokens, an ...
1
vote
0
answers
1k
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ETH smart contract deposit and withdrawal functionality - multiple addresses?
I have an ERC721 smart contract with basic functionality.
When the user deposits this ERC721 token, I generate for him a new eth address. For example using
account_pass = random_text()
Account....
- 11
1
vote
3
answers
99
views
Would it be possible to integrate crypto with trading bot? [closed]
You can create a trading bot in trading view and see how well your crypto would perform in a given time frame. (I can see how much money would I make if I didn't sell or how much money I would make if ...
- 11
3
votes
0
answers
38
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How did 1inch token contract get the special address? [duplicate]
The 1Inch Exchange token contract address is 0x111111111117dc0aa78b770fa6a738034120c302, which is the same on both Ethereum mainnet and Binance Smart Chain mainnet.
As I understand, when deploying a ...
- 31