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Subset of original Web3 API with additional certainty checks. I.e. wait for some confirmations (new blocks) before triggering the callback.
// Import the library
import {FirmWeb3, Certainty} from 'firm.web3';
// Create new `FirmWeb3` passing existing `web3` instance.
let firmWeb3 = new FirmWeb3(global.web3);
// Change certainty level (default MEDIUM=4 blocks)
firmWeb3 = firmWeb3.withCertainty(Certainty.HIGH); // wait for 12 blocks
// send transaction and wait for receipt
web3.eth.sendTransaction({...}, (err, txHash) => {
console.log('Transaction sent.');
// wait for receipt with sufficient confirmations count
firmWeb3.getTransactionReceipt(txHash, (err, receipt) => {
console.log('Transaction has 12 confirmations.');
});
});
or without ES2015
:
// Import the library
var firmWeb3 = require('firm.web3');
// Create new `FirmWeb3` passing existing `web3` instance.
var firmWeb3 = new firmWeb3.FirmWeb3(global.web3);
// Change certainty level (default MEDIUM=4 blocks)
firmWeb3 = firmWeb3.withCertainty(firmWeb3.Certainty.HIGH); // wait for 12 blocks
// send transaction and wait for receipt
web3.eth.sendTransaction({...}, function (err, txHash) {
console.log('Transaction sent.');
// wait for receipt with sufficient confirmations count
firmWeb3.getTransactionReceipt(txHash, function (err, receipt) {
console.log('Transaction has 12 confirmations.');
});
});
firmWeb3.withCertainty(level)
- returns a new instance with given certainty level
(Certainty.{LOW(2 blocks), MEDIUM(4), HIGH(12)}
or just number of blocks),firmWeb3.getTransactionReceipt(hash, callback)
- gets a receipt for given hash
(will retry up to 24 blocks),firmWeb3.getCode(address, callback)
- gets contract code under given address
(will retry up to 24 blocks),firmWeb3.filter(filterOptions)
- returns a new logs (events) filter,firmWeb3.contract(abiArray)
- returns a new contract factory.filter.withCertainty(level)
- returns a new filter with changed certainty level
,filter.get(callback)
- gets current "firm" logs (logs coming from block latest - confirmationLevel
),filter.watch(callback)
- fires a callback for each new logs specified in filter and happening in block latest - confirmationLevel
,filter.stopWatching()
- stops watching and uninstall filter.contractF.at(address)
- returns contract with current ABI bound to given address
,
contractF.new([...args,] callback)
- deploys contract with current ABI and calls back with FirmContract
.
contract.withCertainty(level)
- returns a new contract with different certainty level
,
contract.allEvents([filterOptions] [, callback])
- returns a filter for all events hapening in contract
contract.[eventName]([filterValues] [, filterOptions] [, callback])
- returns a filter for specific event in contract
Parameters values are the same as specified here: JavaScript API
FAQs
[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Join the chat at https://gitter.im/ethcore/parity][gitter-image]][gitter-url] [![GPLv3][license-image]][license-url]
We found that firm.web3 demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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