geth

go开发以太坊智能合约-geth

由 旧街凉风 提交于 2020-03-11 11:51:37
go-ethereum客户端通常被称为geth，它是个命令行界面，执行在Go上实现的完整以太坊节点。通过安装和运行geth，可以参与到以太坊前台实时网络并进行以下操作： 挖掘真的以太币 在不同地址间转移资金 创建合约，发送交易 探索区块历史 及很多其他 链接： 网站: http://ethereum.github.io/go-ethereum/ Github: https://github.com/ethereum/go-ethereum 维基百科: https://github.com/ethereum/go-ethereum/wiki/geth Gitter: https://gitter.im/ethereum/go-ethereum 如果你希望 高效的 学习以太坊DApp开发，可以访问汇智网提供的 最热门 在线互动教程： 适合区块链新手的以太坊DApp实战入门教程 区块链+IPFS+Node.js+MongoDB+Express去中心化以太坊电商应用开发实战 其他更多内容也可以访问 这个以太坊博客 。 来源： oschina 链接： https://my.oschina.net/u/3837977/blog/1805453

Web3.js sendSignedTransaction gives “Error: Failed to check for transaction receipt”

由 Deadly 提交于 2019-12-11 05:59:46
问题 I am using web3js v1.0.0-beta.34 to send signed transactions to a geth node Geth/v1.8.13-unstable-2e0391ea/linux-amd64/go1.10.3 in a loop. Problem: In the initial iterations of the loop, Node.js prints the transaction hash to console. But when the loop has been running for more than a handful of seconds, we start to get the error: Error: Failed to check for transaction receipt: {} at Object._fireError (/Users/x/test/node_modules/web3-utils/src/index.js:56:17) at /Users/x/test/node_modules

Repeating transactions hangs - web3js, local geth

由 為{幸葍}努か 提交于 2019-12-07 08:25:44
问题 I have an issue with transactions on my local ethereum network - at some point, transaction hangs & spends a lot of ETH from my account. Here's a sample code: async function send(toAccount, weiVal) { let account = await w3.getDefAccount(); for (let i = 0; i < 100; i++) { let res = await web3.eth.sendTransaction({ from: account, to: toAccount, value: weiVal }); await helper.timeout(2000); } } send('0x5648...', 100000000000000); It hangs at sendTransaction call (promise is never resolved) on

Repeating transactions hangs - web3js, local geth

由 旧巷老猫 提交于 2019-12-05 17:34:32
I have an issue with transactions on my local ethereum network - at some point, transaction hangs & spends a lot of ETH from my account. Here's a sample code: async function send(toAccount, weiVal) { let account = await w3.getDefAccount(); for (let i = 0; i < 100; i++) { let res = await web3.eth.sendTransaction({ from: account, to: toAccount, value: weiVal }); await helper.timeout(2000); } } send('0x5648...', 100000000000000); It hangs at sendTransaction call (promise is never resolved) on some random iteration. The situation remains the same after script restart - transaction passes a few

calling smart contracts methods using web3 ethereum

由 為{幸葍}努か 提交于 2019-11-30 13:58:20
问题 Trying to work around the blockchain using Ethereum, I'm facing problems when trying to interface with a deployed contract. What I would try to achieve is to call a method to display information added to a private blockchain deployed locally using Geth. I can't call any function from my smart contract and I've been wondering if I'm doing something wrong... Could someone tell me how to achieve a simple call to one of the method from this contract? let say display the existing agencies, or the

calling smart contracts methods using web3 ethereum

由 时光总嘲笑我的痴心妄想 提交于 2019-11-30 09:20:30
Trying to work around the blockchain using Ethereum, I'm facing problems when trying to interface with a deployed contract. What I would try to achieve is to call a method to display information added to a private blockchain deployed locally using Geth. I can't call any function from my smart contract and I've been wondering if I'm doing something wrong... Could someone tell me how to achieve a simple call to one of the method from this contract? let say display the existing agencies, or the agency name from which the user is part of. My contract: agency.sol pragma solidity ^0.4.18; // We have
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