ethct 19.10.31.5

Ethereum contract tool(command line)

Ethct: Ethereum contract tool (command line)

1. Now support:

• Contract compiliation
• Contract deployment
• Contract function calls
• Retrieve infomation from chain

2. Install

Install solc on MacOS:

brew tap ethereum/ethereum
brew install solidity

For Linux/Windows, please refer to the Solidity documentation.

Install ethct:

pip install ethct

3. Usage

1. Config the tool first:

   ethct --config --privkey <PRIVKEY> --infurakey <INFURAKEY> --network <NETWORK>
   

2. Compile a contract and save the output files:

   ethct --compile test.sol --save
   

3. Deploy a contract on ropsten testnet:

   ethct --deploy test.sol --network ropsten
   

4. Call contract function:

   ethct --address 0x71c46Ed333C35e4E6c62D32dc7C8F00D125b4fee --abi ./build/CaptureTheEther.abi --call 'setNickname ccyanxyz'
   

5. Call a payable function:

   ethct --address 0x2F796FaC147d6fff8b2485d05aE7FB823A478317 --abi ./build/PredictTheBlockHashChallenge.abi --call 'lockInGuess 0x0000000000000000000000000000000000000000000000000000000000000000 value:1'
   

   'value:1' means the value of this transaction is 1 ether.

6. Get contract storage:

   ethct --getstorage 0x2F796FaC147d6fff8b2485d05aE7FB823A478317 --position 2
   

7. Get block:

   ethct --getblock <BLOCKNUM>/latest/earliest/pending/<BLOCKHASH>
   

8. Get transaction:

   ethct --gettx <TXHASH>
   

9. Get balance:

   ethct --getbalance <ADDRESS>
   

4. Why build this

To make my life easier completing the CaptureTheEther challenges.