Epirus-local

Epirus-local is a local ethereum client, similar to what Ganache provides, written in Kotlin.

This project relies on web3-evm to execute user requests.

Features

• Allows json-rpc interactions with a local ethereum blockchain.
• Generates a default genesis file containing 10 ethereum accounts or lets you use your own genesis.
• Provides a CLI to run the client.
• Handles these operations:
  • eth_blockNumber
  • eth_getTransactionCount
  • eth_getBalance
  • eth_sendTransaction
  • eth_sendRawTransaction
  • eth_estimateGas
  • eth_getBlockTransactionCountByHash
  • eth_getBlockTransactionCountByNumber
  • eth_getTransactionReceipt
  • eth_getCode
  • eth_call

Getting started

git clone https://github.com/epirus-io/epirus-local && cd epirus-local

./gradlew installDist

Run in Linux:

build/install/epirus-local/bin/epirus-local [command]

Run in Windows

build\install\epirus-local\bin\epirus-local.bat [command]

Start the client

epirus-local start -d=/path/to/directory -p=9090

This command generates a new genesis file with 10 accounts filled with 100 ether.

Load from previous configuration

epirus-local load -g=/path/to/genesis

This command loads a pre-existing genesis-file from a certain path.

Send requests

Example of a request

curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{
  "from": "0x8f496c16955a7bb9b5e1ea0383d01f87372ab520",
  "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
  "gas": "0x76c0", 
  "gasPrice": "0x9184e72a000", 
  "value": "0x9184e72a",
  "nonce": "0x1"
}],"id":1}' host:port

Example of a response

{"id" : 1, "jsonrpc" : "2.0", "result" : "0xc631caa67cab48ead77a58321bbb0c76f4060751a4bb3d5b45b99c4a68b1a7b7"}

For more information about the requests, check out the Ethereum json-rpc api.