Presets

Presets are ready-to-deploy contracts provided by the library. Since presets are intended to be very simple and as generic as possible, there’s no support for custom or complex contracts such as ERC20Pausable or ERC721Mintable.

For contract customization and combination of modules you can use Wizard for Cairo, our code-generation tool.

Available presets

List of available presets and their corresponding Sierra class hashes.

Class hashes were computed using cairo 2.6.3.

Name Sierra Class Hash

Name	Sierra Class Hash
`Account`	`0x0450f568a8cb6ea1bcce446355e8a1c2e5852a6b8dc3536f495cdceb62e8a7e2`
`ERC20`	`0x06aff5bf77ad88f5ccadc80360e3dcdd12e1a8009160458296b8aac9de2240ff`
`ERC721`	`0x04cd23b9cf1f3206bef278fe4a4cf6c34e88a7ae20d85884e3d6a1bf8df06693`
`ERC1155`	`0x0165bfb888913ab8adda83e5d859fd1c283460d51f8f694da00c121b65a6fcc8`
`EthAccountUpgradeable`	`0x078ca36b65e3790d9a1b8474221a52b4c600efe5c55e5d1e972a61f69365a151`
`UniversalDeployer`	`0x00c46a81caa79e379148caaceb3db2e7c6d59c89a47a53b51d59494d65233e87`

Account

0x0450f568a8cb6ea1bcce446355e8a1c2e5852a6b8dc3536f495cdceb62e8a7e2

ERC20

0x06aff5bf77ad88f5ccadc80360e3dcdd12e1a8009160458296b8aac9de2240ff

ERC721

0x04cd23b9cf1f3206bef278fe4a4cf6c34e88a7ae20d85884e3d6a1bf8df06693

ERC1155

0x0165bfb888913ab8adda83e5d859fd1c283460d51f8f694da00c121b65a6fcc8

EthAccountUpgradeable

0x078ca36b65e3790d9a1b8474221a52b4c600efe5c55e5d1e972a61f69365a151

UniversalDeployer

0x00c46a81caa79e379148caaceb3db2e7c6d59c89a47a53b51d59494d65233e87

starkli class-hash command can be used to compute the class hash from a Sierra artifact.

Usage

These preset contracts are ready-to-deploy which means they should already be declared on the Sepolia network. Simply deploy the preset class hash and add the appropriate constructor arguments. Deploying the ERC20 preset with starkli, for example, will look like this:

starkli deploy 0x06aff5bf77ad88f5ccadc80360e3dcdd12e1a8009160458296b8aac9de2240ff \
  <CONSTRUCTOR_ARGS> \
  --network="sepolia"

If a class hash has yet to be declared, copy/paste the preset contract code and declare it locally. Start by setting up a project and installing the Contracts for Cairo library. Copy the target preset contract from the presets directory and paste it in the new project’s src/lib.cairo like this:

// src/lib.cairo

#[starknet::contract]
mod ERC20 {
    use openzeppelin::token::erc20::ERC20Component;
    use starknet::ContractAddress;

    component!(path: ERC20Component, storage: erc20, event: ERC20Event);

    #[abi(embed_v0)]
    impl ERC20MixinImpl = ERC20Component::ERC20MixinImpl<ContractState>;
    impl InternalImpl = ERC20Component::InternalImpl<ContractState>;

    #[storage]
    struct Storage {
        #[substorage(v0)]
        erc20: ERC20Component::Storage
    }

    #[event]
    #[derive(Drop, starknet::Event)]
    enum Event {
        #[flat]
        ERC20Event: ERC20Component::Event
    }

    #[constructor]
    fn constructor(
        ref self: ContractState,
        name: ByteArray,
        symbol: ByteArray,
        fixed_supply: u256,
        recipient: ContractAddress
    ) {
        self.erc20.initializer(name, symbol);
        self.erc20._mint(recipient, fixed_supply);
    }
}

Next, compile the contract.

scarb build

Finally, declare the preset.

starkli declare target/dev/my_project_ERC20.contract_class.json \
  --network="sepolia"