This is a Ethereum compatible Go Client which implements the Eth JSON RPC Module, Personal JSON RPC Module and NET JSON RPC Module.
This package is currently under active development. It is not already stable and the infrastructure is not complete and there are still several RPCs left to implement.
bytecode := ... #contract bytecode
abi := ... #contract abi
var connection = web3.NewWeb3(providers.NewHTTPProvider("127.0.0.1:8545", 10, false))
contract, err := connection.Eth.NewContract(abi)
transaction := new(dto.TransactionParameters)
coinbase, err := connection.Eth.GetCoinbase()
transaction.From = coinbase
transaction.Gas = big.NewInt(4000000)
hash, err := contract.Deploy(transaction, bytecode, nil)
fmt.Println(hash)
result, err = contract.Call(transaction, "balanceOf", coinbase)
if result != nil && err == nil {
balance, _ := result.ToComplexIntResponse()
fmt.Println(balance.ToBigInt())
}
hash, err = contract.Send(transaction, "approve", coinbase, 10)
GetBalance
balance, err := connection.Eth.GetBalance(coinbase, block.LATEST)
SendTransaction
transaction := new(dto.TransactionParameters)
transaction.From = coinbase
transaction.To = coinbase
transaction.Value = big.NewInt(10)
transaction.Gas = big.NewInt(40000)
transaction.Data = types.ComplexString("p2p transaction")
txID, err := connection.Eth.SendTransaction(transaction)
TODO List
- web3_clientVersion
- web3_sha3
- net_version
- net_peerCount
- net_listening
- eth_protocolVersion
- eth_syncing
- eth_coinbase
- eth_mining
- eth_hashrate
- eth_gasPrice
- eth_accounts
- eth_blockNumber
- eth_getBalance
- eth_getStorageAt (deprecated)
- eth_getTransactionCount
- eth_getBlockTransactionCountByHash
- eth_getBlockTransactionCountByNumber
- eth_getUncleCountByBlockHash
- eth_getUncleCountByBlockNumber
- eth_getCode
- eth_sign
- eth_sendTransaction
- eth_sendRawTransaction
- eth_call
- eth_estimateGas
- eth_getBlockByHash
-
eth_getBlockByNumber
- eth_getTransactionByHash
- eth_getTransactionByBlockHashAndIndex
- eth_getTransactionByBlockNumberAndIndex
- eth_getTransactionReceipt
- eth_getUncleByBlockHashAndIndex
- eth_getUncleByBlockNumberAndIndex
- eth_getCompilers
- eth_compileLLL
- eth_compileSolidity (deprecated)
- eth_compileSerpent
- eth_newFilter
- eth_newBlockFilter
- eth_newPendingTransactionFilter
- eth_uninstallFilter
- eth_getFilterChanges
- eth_getFilterLogs
- eth_getLogs
- eth_getWork
- eth_submitWork
- eth_submitHashrate
- db_putString
- db_getString
- db_putHex
- db_getHex
- shh_post
- shh_version
- shh_newIdentity
- shh_hasIdentity
- shh_newGroup
- shh_addToGroup
- shh_newFilter
- shh_uninstallFilter
- shh_getFilterChanges
- shh_getMessages
- personal_listAccounts
- personal_newAccount
- personal_sendTransaction
- personal_unlockAccount
go get -u github.com/regcostajr/go-web3
glide get github.com/regcostajr/go-web3
- go ^1.8.3
- golang.org/x/net
Node running in dev mode:
geth --dev --ws --wsorigins="*" --rpc --rpcapi eth,web3,personal,ssh,net --mine
Full test:
go test -v test/modulename/*.go
Individual test:
go test -v test/modulename/filename.go
Package go-web3 is licensed under the GPLv3 License.