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Results tagged with web3js
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user 21784
Javascript API and library for Ethereum To develop applications on Ethereum, you can use the web3 object provided by the web3.js library. Under the hood it communicates to a local node through RPC calls. web3.js works with any Ethereum node, which exposes an RPC layer. https://github.com/ethereum/wiki/wiki/JavaScript-API
0
votes
2
answers
662
views
React + Web3, making call from componentDidMount but web3 not ready?
I'm trying to load some data from a smart contract from within componentDidMount. Calling the contract from within here didn't seem to work as web3 provider wasn't ready, so I added an event listener …
- 245
1
vote
1
answer
2k
views
Error: The current provider doesn't support subscriptions: MetamaskInpageProvider
I'm simply trying to setup an event listener with web3 and metamask.
incrementEvent = existingContract.events.Incremented(function(error, event){
if (error) console.log(error);
…
- 245
3
votes
2
answers
2k
views
Easiest way to compile solidity in user's browser?
I'd like to compile solidity in the browser. web3 has deprecated compile() features so you can't call web3.eth.compile.solidity() anymore.
I tried to browserify require('solc') / require('solc/wrapper …
- 245
2
votes
0
answers
113
views
Showing block confirmations on a user transaction, best practices?
I'm working on a site that allows users to deploy smart contracts via MetaMask. Basically they customize it, it gets compiled, and then the user deploys it by via a MetaMask transaction.
I would like …
- 245
4
votes
4
answers
8k
views
web3 contract instantiation
I'm trying to create a contract object with web3.
var contract_abi = result['contracts']['Test']["interface"];
//[{"constant":false,"inputs":[],"name":"inc","outputs":[],"payable":false,"type …
- 245