Top "Web3js" questions

The web3.

calling smart contracts methods using web3 ethereum

Trying to work around the blockchain using Ethereum, I'm facing problems when trying to interface with a deployed contract. What …

javascript ethereum web3js geth
How to authenticate and send contract method using web3.js 1.0

I am confused about how I should be executing a contract's method using the web3 1.0 library. This code works (so …

ethereum web3js web3 go-ethereum
how to swap Token for ETH with swapExactTokensForETH() using UniswapV2Router02 Contract

i'm traying to swap some DAI for ETH on the Ropsten Network using the UniswapV2Router02 on Etherscan (Ropsten Test …

ethereum smartcontracts web3js etherscan
Rinkeby: "replacement transaction underpriced"

I've been running a local Rinkeby node (in order to use websocket events) which was working fine for a while, …

ethereum web3js
Unable to resolve module crypto in reactnative

I have posted this here have created react-native app using react-native init myapp added web3 in package.json npm install …

react-native npm webpack ethereum web3js
Ethereum Web3.js returns "Cannot find module 'web3-requestManager'"

I'm trying to start using Ethereum Web3.js with node 6.11.1 on a macosx I installed web3 with the following command: …

javascript node.js ethereum web3js