Uniswap is a protocol for the decentralized exchange of tokens on the Ethereum blockchain. Edit this page Previous V3Migrator Next Error Codes Introducing UNI. initial commit. For a full description of v3 ' s features, please refer to our announcement blog pos t. Volume 24H. First, it uses ETH to buy UniFi via Uniswap's ETH-UniFi pool. Where address = [WETH address, MEME token address], sender = unlocked account, uniRouter is the json abstraction of the router contract. how many homes lost in almeda fire; cqc interview questions for nominated individual; envelope stuffing jobs from home near me The Address 0xf9a98037b5ccd0185161d762278fc009c8056c4e page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . This was also known as "ETH bridging". Because its API is a bit easier to follow than Uniswap V3's API. upgrade to latest v2, router mvp. add metadata. The Uniswap constant product formula is "X * Y = K". Uniswap V2 (UNI-V2) Token Tracker on Etherscan shows the price of the Token $0.0000, total supply 0.597220399002117509, number of holders 123 and updated information of the token. Removing this requirement cuts the transaction count in half and saves on gas fees. 工厂合约; weth合约; 路由合约; multicall合约; 2、前端. Filtered by Token Holder (Impermax: Router . The Address 0x88e0a61798a3ced52f7654a5d79a90737f346631 page allows users to view transactions, balances, token holdings and transfers of both ERC-20 and ERC-721 (NFT . For fellow builders out there, let us share more details on these unstated assumptions on the Uniswap V2 Router contract that allows MEV bots to take an unfair advantage as well as the mitigations you can do if you are in a similar situation. An attacker created a Fake ERC-20 token named rAXZZ and an associated with it an Uniswap V2 Liquidity Pool paired it with GRO (GRO/rAXZZ).. 1. About Uniswap (V2) Uniswap is a protocol for automated token exchange on Ethereum. You need to enable JavaScript to run this app. It is this "K" to which the "K" error refers. This is prior to any confirmation popup from metamask, no confirmation ever pops. If Metamask asks you whether you want to permit Etherscan to spend your USDT, as it did for me, double check the transaction details. 例如，如果你想在以太坊区块链上运行的 Uniswap 或 Sushiwap 上购买Router Protocol(ROUTE)，您可先通过法定货币购买 ETH，然后再进行目标代币的购买。 . -. . We are going to learn how to swap on Uniswap V2 with Rust, so I recommend having some familiarity with Web3, Smart contracts, and . The protocol uses the following WETH9 addresses on Ethereum and WMATIC addresses on Polygon. If they are like above, you are fine and you will be approving Uniswap v2 router and not Etherscan. It was launched on November 2, 2018. We will get to Uniswap V3 in a later article. The Address 0x88e0a61798a3ced52f7654a5d79a90737f346631 page allows users to view transactions, balances, token holdings and transfers of both ERC-20 and ERC-721 (NFT . Given an input asset amount and an array of token addresses, calculates all subsequent maximum output token amounts by calling getReserves for each pair of token addresses in the path in turn, and using these to call getAmountOut. Staked Uniswap V2 (STKD-UNI-V2) Token Tracker on FtmScan shows the price of the Token $0.0000, total supply 3,122.062229185965524787, number of holders 2 and updated information of the token. This is probably an issue with one of the tokens you are swapping. Connect to Web3. Preferences Company. It is built on the concept of Liquidity pools, automated market makers, or, to be precise, a constant product market maker. UniswapV2: K This is an error that is frequently encountered, and requires a bit of context to understand it. Optimism Testnet. Etherscan is a Block Explorer and Analytics Platform for Ethereum, a decentralized smart contracts platform. * UniswapV2Library.sol -> UniswapV2Periphery.sol, and make the library a real library * Call the library directly wherever possible * Remove periphery inheritance and just use the V2 library * Remove duplicate library * Remove some unnecessary lines from periphery * Drop the periphery contract and interface * Address comments I dont really understand etherscan but I feel like my coins havent been lost, theyre just waiting for me to do something. The Real Housewives of Atlanta The Bachelor Sister Wives 90 Day Fiance Wife Swap The Amazing Race Australia Married at First Sight The Real Housewives of Dallas My 600-lb Life Last Week Tonight with John Oliver Uniswap Info. $489B+. PROTOCOL. Double check the fee Metamask is offering, it said ~$140 for me. To start, UNI is available through four liquidity mining pools: UNI holders may vote to add more pools after an initial 30-day . Aug 5, 2020 . deputy governor danforth motivation. . Feb 4, 2020.prettierrc. This is prior to any confirmation popup from metamask, no confirmation ever pops. For this reason, routers have release numbers, starting at 01. What is Uniswap Protocol? Review and revoke your token approvals for any dApp. It serves as an open-source frontend interface for traders and liquidity . The attacker then proceeded in depositing 19,900,000,000,000 rAXZZ into the . Uniswap V2 and Uniswap V3 are both in use. The token tracker page also shows the analytics and historical data. In this pool, the price of 1 BUIDL = ~2.83 UniFi. Uniswap v3 is the most powerful version of the protocol yet, with Concentrated Liquidity offering unprecedented capital efficiency for liquidity providers, better execution for traders, and superior infrastructure at the heart of decentralized finance. Events PairCreated event PairCreated(address indexed token0, address indexed token1, address pair, uint); https://kovan-optimistic.etherscan.io/ > address > 0xe592427a0aece92de3edee1f18e0157c05861564 . Core contracts for the UniswapV2 protocol. This arguably increases gas costs slightly, but all in all worth it for the large oracle enhancement. When I first start the cli and call the function I get 'runtime error: revert' and on any subsequent calls with varying parameters I also get 'revert reason: UniswapV2: LOCKED'. UniswapV2Factory.sol Address UniswapV2Factory is deployed at 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f on the Ethereum mainnet, and the Ropsten, Rinkeby, Görli, and Kovan testnets. Router02 Version: V2 Router02 Because routers are stateless and do not hold token balances, they can be replaced safely and trustlessly, if necessary. . No Filter Aavegotchi ALPHA Aavegotchi FOMO Aavegotchi FUD Aavegotchi GHST Token (PoS) Aavegotchi KEK GAX Liquidity Token Reward Uniswap V2 Uniswap V2 Wrapped Ether Txn Hash Block 以上二者从uniswap历史提交记录里面找，可以避免很多版本 . Uniswap protocol is deployed as the set of smart contracts and is entirely decentralized, permissionless, and is censorship-resistant. The Contract Address 0xe0c777379ffbbc9ae0ec56d24cb5087d0c091e4f page allows users to view the source code, transactions, balances, and analytics for the contract . For any sale of these tokens the UI is reporting: The transaction cannot succeed due to error: UniswapV2: K. This is probably an issue with one of the tokens you are swapping. UNI, the Uniswap Protocol token, is live! Trying to swap a shitcoin on uniswap v2 and keep getting no response when clicking confirm swap. If the ~$25m was concentrated into the 0.999 - 1.001 range it would provide the same depth as $50b in Uniswap v2. Token Approvals. This article explains the GRO/rAAVE exploit that happened on February 08, 2021 at 06:17PM UTC in one of the rAAVE staking pools (stkGRO/rAAVE).. A. Where X and Y represent the respective reserve balances of two ERC-20 tokens, and "K" represents the product of the reserves. function getAmountsIn(address factory, uint amountOut, address[] memory path) internal view returns (uint[] memory amounts); Copy. Start using @uniswap/v2-core in your project by running `npm i @uniswap/v2-core`. No Filter 1INCH Token Aave Interest bearing LINK Aave Token Altitude Ampleforth Ankr Network Antiample Askobar Network Autonio Axie Balancer Balancer Pool Token Balancer Pool Token Balancer Pool Token Balancer Pool Token Balancer Pool Token BaoToken Binance USD Catnip Celsius ChainLink Token Compound CornDog Token CreedToken Curve DAO Token . The Address 0x9795a9baac2f17e7c7f11686bc6bc2afc3d84612 page allows users to view transactions, balances, token holdings and transfers of both ERC-20 and ERC-721 (NFT . The Address 0x47b093c50e6f5911240173919cfcd744b577989c page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . It appears as a private transaction and although the contract is not the uniswap router, the operation is described as a uniswap v2 swap. Here, because of Uniswap's exclusionary routing mechanism, the price of UniFi is lagging. The token tracker page also shows the analytics and historical data. 60% of the UNI genesis supply is allocated to Uniswap community members, a quarter of which (15% of total supply) has already been distributed to past users. In order to swap a native asset like ETH (or MATIC on Polygon), the Uniswap protocol wraps these assets in an ERC20 wrapped native token contract. If Metamask asks you whether you want to permit Etherscan to spend your USDT, as it did for me, double check the transaction details. Uniswap Overview. Arbiscan Rinkeby Testnet . Jul 22, 2020.yarnrc. I know now that I have sent coins directly to the uniswap v3 router address. Latest version: 1.0.1, last published: 2 years ago. If you look at the internal transactions with the "advanced" setting on etherscan, you'll see that this transaction did interact with the uniswap contract. in v2: The transaction cannot succeed due to error: UniswapV2Router: EXPIRED. Useful for calculating optimal token amounts before calling swap. * UniswapV2Library.sol -> UniswapV2Periphery.sol, and make the library a real library * Call the library directly wherever possible * Remove periphery inheritance and just use the V2 library * Remove duplicate library * Remove some unnecessary lines from periphery * Drop the periphery contract and interface * Address comments The Address 0x905b3da313b3070e04a037ac7e2cad28468b375f page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . The Address 0x9795a9baac2f17e7c7f11686bc6bc2afc3d84612 page allows users to view transactions, balances, token holdings and transfers of both ERC-20 and ERC-721 (NFT . Eth: $1,818.92(+4.05%)| 194 Gwei Home Blockchain View Txns View Pending Txns What happened. Uniswap V2 is an upgrade on V1 Uniswap V2 provides ERC20 to ERC20 token swaps, where ETH is no longer required to be an intermediary token to facilitate the swap process. uniswap前端; uniswap sdk. Trade Volume. After you deploy the contract you can use Remix or Etherscan to perform a swap or build a simple program in web3.py. The Uniswap Protocol supports trading of ERC20 tokens. The Address 0x93a2d8f93fc11976b3cc50ec15f4e95c07500aa2 page allows users to view transactions, balances, token holdings and transfers of both BEP-20 and ERC-721 (NFT . getAmountsIn To achieve this instead of only storing one cumulative price sum, all relevant ones are stored in a fixed size array. TVL. Uniswap （V2） ROUTE/USDC: $2.76: $43,323.61 . Find out the most actively traded coin on Uniswap (v2). Start using @uniswap/v2-core in your project by running `npm i @uniswap/v2-core`. The Address 0x973d7d81f42095006f6ca0b665fc81f7f668f337 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . The Uniswap Protocol is an open-source protocol for providing liquidity and trading ERC20 tokens on Ethereum. Create the contract and deploy it to the blockchain then pass it the required parameters and it will perform a token swap. 最近在研究uniswap v2版本逻辑和代码，接下来我们以一篇uniswap v2版本的部署，开启uniswap的学习之路。 部署步骤如下： 1、准备合约. This is probably an issue with one of the tokens you are swapping. It was built from commit 8160750. Get Uniswap (v2) total trading volume, trading fees, pair list, fee structure, and other cryptocurrency exchange info. Prerequisites. To swap tokens on Uniswap using a smart contract copy the code below. First, we noticed that etherscan had marked the block with Flashbots and Private Transaction tags. The protocol is non-upgradable and designed to be censorship resistant. Dec 9, 2019.waffle.json. Swap, earn, and build on the leading decentralized crypto trading protocol. [Reset] Filter by: No Filter (PoS) Dai Stablecoin (PoS) Tether USD 50 Cent Aave (PoS) Adamant Balancer Balancer Polygon DeFi Index Bounty Pet BullRun Token Chain Games ChainLink Token CZDiamond Darkcoin DinoX Coin Firebird.Finance GammaBountyToken IRON . Uniswap V2: Router 2 (3.88 Eth) 1.15% (123.04 Eth) 2.04%: 12: Centre: USD Coin (3.49 Eth) 1.11% (79.57 Eth) 1.67%: 13: 1inch v4: Router (3.85 Eth) 1.00% (82.33 Eth) . Launch App. Uniswap Info. create .yarnrc to fix #37. In this pool, the price of 1 UniFi = ~0.00114 ETH. If they are like above, you are fine and you will be approving Uniswap v2 router and not Etherscan. Create swap contract. Peripheral smart contracts for interacting with Uniswap V2 - GitHub - Uniswap/v2-periphery: Peripheral smart contracts for interacting with Uniswap V2. Given an output asset amount and an array of token addresses, calculates all preceding minimum input token amounts by calling getReserves for each pair of token addresses in the path in turn, and using these to call . Uniswap describes itself as a simple smart contract interface for swapping ERC20 tokens. Double check the fee Metamask is offering, it said ~$140 for me. For any sale of these tokens the UI is reporting: The transaction cannot succeed due to error: UniswapV2: K. This is probably an issue with one of the tokens you are swapping. There are 1153 other projects in the npm registry using @uniswap/v2-core. Then, it sells that UniFi for BUIDL via Uniswap's UniFi-BUIDL pool. Improved Uniswap v2 TWAP oracle mechanism where a single on-chain call can retrieve the TWAP price with the the last 9 days. 11 11 13 15 17 20 22 25 27 01 03 06 08. 如果您使用 以太坊网络，可以使用Etherscan区块浏览器中的gas查询工具查看gas . About Us; Contact Us; Check Ethereum (ETH) account 0x14ad5831d8767692d38e25aa0a8fb48e2cd1ba0e, its balance and transactions It has a formalized model for pooling liquidity reserves. If the ~$25m currently held in the Uniswap v2 DAI/USDC pair was instead concentrated between 0.99 — 1.01 in v3, it would provide the same depth as $5bn in Uniswap v2 as long as the price stayed within that range. This may happen if more efficient smart contract patterns are discovered, or if additional functionality is desired. Deposit. We will be using Uniswap V2 in this article. You need to enable JavaScript to run this app. It eliminates trusted intermediaries and unnecessary forms of rent extraction, allowing for safe, accessible, and efficient exchange activity.
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