Calling sync() and skim() in Remix. Overview In this article we will call the sync() function to fix stuck pairs. This happens when someone removes everything from a pool leaving dust. These small amounts might account for large changes. Syncing will update the reserves to the current balances. This will work…

How to build server side wallets for web3 game developers. Question I want players to be take items drops (not NFT regular items) to a merchant NPC. The merchant will take hand out a token. Overview There are a few ways to build a crypto game. All data is on chain. This…

Simple question. Complicated solution. TLDR There’s no all in one solution (yet). Problem I make login with metamask on my website. But I want to get all tokens (Such as BNB, RARI and etc) balance in metamask. How do i get all tokens balance? How do I get all the tokens inside my Metamask wallet by web3 or others? As you already figured out in the comments, nobody knows all the token balances of your account, not even MetaMask…stackoverflow.com

Using OpenZepplin Solidity Contract Wizard Overview In this example we will Deploy token contract Delegate to vote Deploy governor contract Transfer token contract ownership to governor contract Create a proposal to mint Cast a vote Execute transaction Verify execution Deploy a Token Contract We will use OpenZepplin’s Contract Wizard Contracts Wizard Use the interactive generator below to bootstrap your smart contract and learn about OpenZeppelin Contracts. Contracts…wizard.openzeppelin.com

Using Docker, The Graph, Graph-Node and OpenZepplin Subgraphs — Introduction The Graph supports many networks such as Ethereum, xDAI, BSC etc. This article will explain how to build a subgraph with a custom network RPC.

How to sign a message with a wallet and verify the signature on-chain using ecrecover — Introduction This is a practical tutorial on signing a message using MetaMask and then verifying it on-chain. Here’s a demo: https://leon-do.github.io/ecrecover/ GitHub - leon-do/ecrecover: verify a signed ETH message You can't perform that action at this time. You signed in with another tab or window. You signed out in another tab or…github.com

Using Superfluid on the backend using nodejs Overview Superfluid is used to flow value for capital efficiency. This allows users to send a steady flow of funds to a user. The dashboard is a quick way to get started with a nice GUI . https://app.superfluid.finance/ But what if you want to…

Get the owner of batch for ERC-721 tokens by using Multicall — Question Is there a way to get the owner of multiple ERC-721 tokens? Overview Most NFTs follow the ERC-721 standard, which must implement certain functions such as Transfer, balanceOf, ownerOf etc. In this example we’ll focus on ownerOf which returns the owner (address) of the NFT. // solidity function ownerOf(uint256 _tokenId) external…