goether

Install

go get -u github.com/everFinance/goether

Examples

prvHex := "your prvkey"
rpc := "https://infura.io/v3/{{InfuraKey}}"
testWallet, err := goether.NewWallet(prvHex, rpc)
if err != nil {
 panic(err)
}
// default send DynamicFeeTx
txHash, err := testWallet.SendTx(
 common.HexToAddress("0xa06b79E655Db7D7C3B3E7B2ccEEb068c3259d0C9"), // To
 goether.EthToBN(0.12), // Value
 []byte("123"), // Data
 nil)
// send with opts
nonce := int(1)
gasLimit := int(999999)
txHash, err := testWallet.SendTx(
 common.HexToAddress("0xa06b79E655Db7D7C3B3E7B2ccEEb068c3259d0C9"),
 goether.EthToBN(0.12),
 []byte("123"),
 &goether.TxOpts{ // Configure nonce/gas yourself
 Nonce: &nonce,
 GasLimit: &gasLimit,
 GasPrice: goether.GweiToBN(10),
 })

abi := `[{"constant": true,"inputs": [{"name": "","type": "address"}],"name": "balanceOf","outputs": [{"name": "","type": "uint256"}],"payable": false,"stateMutability": "view","type": "function"},{"constant": false,"inputs": [{"name": "dst","type": "address"},{"name": "wad","type": "uint256"}],"name": "transfer","outputs": [{"name": "","type": "bool"}],"payable": false,"stateMutability": "nonpayable","type": "function"}]`
contractAddr := common.HexToAddress("contract address")
prvHex := "your prvkey"
rpc := "https://kovan.infura.io/v3/{{InfuraKey}}"
// init contract instance with wallet
testWallet, _ := goether.NewWallet(prvHex, rpc)
testContract, err := goether.NewContract(contractAddr, abi, rpc, testWallet)
if err != nil {
 panic(err)
}
// ERC20 BalanceOf
amount, err := testContract.CallMethod(
 "balanceOf", // Method name
 "latest", // Tag
 common.HexToAddress("0xa06b79e655db7d7c3b3e7b2cceeb068c3259d0c9")) // Args
// ERC20 Transfer
txHash, err := testContract.ExecMethod(
 "transfer", // Method name
 &goether.TxOpts{ // Configure nonce/gas yourself, nil load params from eth-node
 Nonce: &nonce,
 GasLimit: &gasLimit,
 GasPrice: goether.GweiToBN(10),
 },
 common.HexToAddress("0xab6c371B6c466BcF14d4003601951e5873dF2AcA"), // Args
 big.NewInt(100))

Modules

Signer

Wallet

Contract

Utils