transaction

Description:

transaction

apiHandler #
A dart library that connects to interact with the Ethereum blockchain. It connects
to an Ethereum node to send transactions, interact with smart contracts and much
more!
Features #

Connect to an Ethereum node with the rpc-api, call common methods
Send signed Ethereum transactions
Generate private keys, setup new Ethereum addresses
Call functions on smart contracts and listen for contract events

TODO #

Code generation based on smart contract ABI for easier interaction
Encode all supported solidity types, although only (u)fixed,
which are not commonly used, are not supported at the moment.

Usage #
Credentials and Wallets #
In order to send transactions on the Ethereum network, some credentials
are required. The library supports raw private keys and v3 wallet files.
Only support rinkeby testnet now #
import 'package:transaction/web3dart.dart';
// You can setup private keys first
web3dart.initEthClient(privateKey:'d1bdc683fbeb9fa0b4ceb26adb39eaffb21b16891ea28e4cf1bc3118fdd39295');
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Sending transactions #
Of course, this library supports creating, signing and sending Ethereum
transactions:
import 'package:web3dart/web3dart.dart';
/// send ETH Token Transaction
web3dart.sendETHFromMainnet(amount: EtherAmount.fromUnitAndValue(EtherUnit.finney, 1),toAddress:'0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A');

/// send ERC20 Token Transaction
/// if usdt Decimals is 18 than 1000000000000000000 = 1 amount for example: BigInt.from(1000000000000000000)
web3dart.sendERC20FromMainnet(contractAddress: '0x7e0480ca9fd50eb7a3855cf53c347a1b4d6a2ff5',amount: BigInt.from(1000000000000000000),toAddress:'0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A');

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get TopErc20CoinPrice() #
import 'package:transaction/model/coinPrice.dart';
import 'package:transaction/transaction.dart';
import 'dart:async';

/// getTopErc20CoinPrice
CoinPriceList coinPrice = await transaction.getTopErc20CoinPrice();
print("result:$coinPrice");

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License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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