A short on how to declare & deploy to Starknet right now

howto.md

Make sure you have the right version of the tools you need:

1. cairo v1.1.0 (check out the tag)
2. cairo-lang v0.11.2

Set up the env

export STARKNET_NETWORK=alpha-goerli
export STARKNET_WALLET=starkware.starknet.wallets.open_zeppelin.OpenZeppelinAccount

you also need an CLI account - you can check ~/.starknet_accounts/starknet_open_zeppelin_accounts.json if you have some or do starknet new_account --account experiments to get an address, then fund it with some goerli ETH and then starknet deploy_account --account experiments

compile the contract using the built cairo binaries

cairo/target/release/starknet-copmile contract.cairo > contract.json

now declare the contract

starknet declare --contract contract.json --account experiments --max_fee 10000000000000000

that will give you a contract class hash which you'll need in the deploy step; monitor for the TX to pass (at least "pending" I think)

to deploy, the easiest way from CLI is to use the UDC - the deploy is done by invoking a contract that's basically a wrapper around a deploy syscall

starknet invoke --address 0x041a78e741e5af2fec34b695679bc6891742439f7afb8484ecd7766661ad02bf --abi ./UDC_abi.json --function deployContract --inputs CLASS_HASH_FROM_DECLARE_TX SALT UNIQUE_FLAG CTOR_DATA_LEN CTOR_DATA --account experiments

monitor this TX on Starkscan; to get the address of the deployed contract, check the ContractDeploy event that this TX emits, specifically the address field

---

it's also possible to declare and deploy via ArgentX - in some Developer tools submenu, there's an option to do that

UDC_abi.json

[
  {
    "data": [
      {
        "name": "address",
        "type": "felt"
      },
      {
        "name": "deployer",
        "type": "felt"
      },
      {
        "name": "unique",
        "type": "felt"
      },
      {
        "name": "classHash",
        "type": "felt"
      },
      {
        "name": "calldata_len",
        "type": "felt"
      },
      {
        "name": "calldata",
        "type": "felt*"
      },
      {
        "name": "salt",
        "type": "felt"
      }
    ],
    "keys": [],
    "name": "ContractDeployed",
    "type": "event"
  },
  {
    "name": "deployContract",
    "type": "function",
    "inputs": [
      {
        "name": "classHash",
        "type": "felt"
      },
      {
        "name": "salt",
        "type": "felt"
      },
      {
        "name": "unique",
        "type": "felt"
      },
      {
        "name": "calldata_len",
        "type": "felt"
      },
      {
        "name": "calldata",
        "type": "felt*"
      }
    ],
    "outputs": [
      {
        "name": "address",
        "type": "felt"
      }
    ]
  }
]