eth-client

eth-client

A Golang client library to communicate with Ethereum RPC server.

• Implements most of JSON-RPC methods and several client-specific methods.
• Provides a high-level interface to propose/get validators on Istanbul blockchain.
• Provides a high-level interface to create private contracts on Quorum blockchain.

Usage

package main

import (
	"context"
	"fmt"

	"github.com/getamis/eth-client/client"
)

func main() {
	url := "http://127.0.0.1:8545"
	client, err := client.Dial(url)
	if err != nil {
		fmt.Println("Failed to dial, url: ", url, ", err: ", err)
		return
	}

	err = client.StartMining(context.Background())
	if err != nil {
		fmt.Println("Failed to start mining, err: ", err)
		return
	}
	fmt.Println("start mining")
}

Implemented JSON-RPC methods

• admin_addPeer
• admin_adminPeers
• admin_nodeInfo
• eth_blockNumber
• eth_sendRawTransaction
• eth_getBlockByHash
• eth_getBlockByNumber
• eth_getBlockByHash
• eth_getBlockByNumber
• eth_getTransactionByHash
• eth_getBlockTransactionCountByHash
• eth_getTransactionByBlockHashAndIndex
• eth_getTransactionReceipt
• eth_syncing
• eth_getBalance
• eth_getStorageAt
• eth_getCode
• eth_getBlockTransactionCountByNumber
• eth_call
• eth_gasPrice
• eth_estimateGas
• eth_sendRawTransaction
• miner_startMining
• miner_stopMining
• net_version
• logs
• newHeads
• eth_getLogs

Istanbul-only JSON-RPC methods

To use these methods, make sure that

• Server is running on Istanbul consensus.
• Connect to server through istanbul.Dial function (not the original Geth client).

Methods:

• istanbul_getValidators
• istanbul_propose

Quorum-only JSON-RPC methods

To use these methods, make sure that

• Server is running on Quorum blockchain
• Connect to server through quorum.Dial function (not the original Geth client).

Methods:

• quorum_privateContract
• quorum_contract

Contributing

Feel free to contribute to this repository.

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request

Reference

• https://github.com/ethereum/go-ethereum
• https://github.com/ethereum/wiki/wiki/JSON-RPC
• https://github.com/ethereum/EIPs/issues/650
• https://github.com/jpmorganchase/quorum
• https://github.com/getamis/istanbul-tools