How can I deploy a smart contract to RSK without using Truffle?

Question

After compiling a Solidity file using solc , how can I deploy the output bytecode as a smart contract to RSK? I know how to do this using Truffle already, but what alternatives are there available for this task?

Answer 1

RSK is (mostly) compatible with Ethereum. In particular, for dev tools, it has JSON-RPC compatibility plus VM compatibility. So if you are a Ethereum developer, you can use tools/ libs that you are familiar with. Here are several methods, apart from Truffle:

• using Geth console and Remix , or
• using Metamask/Nifty and Remix , or
• using MyCrypto or MyEtherWallet contract deploy tools (if you have the contract bytecode).

If you want to do this manually , you can do so using the terminal by sending a transaction using curl via JSON-RPC like this:

curl \
  -X POST \
  -H "Content-Type:application/json" \
  --data '{"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{"from":"FROM_ADDRESS","to":"0x00","gasPrice":"0x3938700","gas":"0x67C28", "data":"SIGNED_CONTRACT_DEPLOYMENT_BYTECODE"}],"id":1}' \
  http://localhost:4444

• Use the eth_estimateGas RPC to obtain the value of gas .
• Use the eth_gasPrice RPC to obtain the value of gasPrice .

Note that the above command assumes that you have RSKj running on localhost .

Also note that just like any other transaction which modifies the state of the blockchain, you will need to sign the deployment transaction as well, in order to produce SIGNED_CONTRACT_DEPLOYMENT_BYTECODE . You can use the eth_sign RPC for this, or the equivalent method in your wallet.

Answer 2

Yes, it is good to know what happen in these situations. Short answer: you send a transaction, to field is empty, data field containts the bytecode of the compiled contract CONCATENATED with the ABI encoded arguments for constructor, if any

Usually, I write my own utilities (in NodeJS, to be cross platform), to interact with an Ethereum/RSK node. You can explore the code of the implemention of client.deploy in my personal project https://github.com/ajlopez/rskapi

Also, you can check the implementation of my command line tools (based on the above library) https://github.com/ajlopez/rskclitools#deploy-a-contract

An code example in https://github.com/ajlopez/EthFaucet/tree/master/commands (see execute setup)

I will add the feature to provide directly the bytecode to deploy command, and in a few days, I will write a post with a bit more organized description