@ethereumjs/common / CommonOpts
Defined in: common/src/types.ts:144
Options for instantiating a Common instance.
chain:
ChainConfig
Defined in: common/src/types.ts:149
The chain configuration to be used. There are available configuration object for mainnet
(Mainnet) and the currently active testnets which can be directly used.
optionalcustomCrypto:CustomCrypto
Defined in: common/src/types.ts:138
This option can be used to replace the most common crypto primitives (keccak256 hashing e.g.) within the EthereumJS ecosystem libraries with alternative implementations (e.g. more performant WASM libraries).
Note: please be aware that this is adding new dependencies for your system setup to be used for sensitive/core parts of the functionality and a choice on the libraries to add should be handled with care and be made with eventual security implications considered.
optionaleips:number[]
Defined in: common/src/types.ts:109
Selected EIPs which can be activated, please use an array for instantiation
(e.g. eips: [ 2537, ])
Currently supported:
- EIP-2537 - BLS12-381 precompiles
optionalhardfork:string
Defined in: common/src/types.ts:100
String identifier ('byzantium') for hardfork or Hardfork enum.
Default: Hardfork.London
optionalparams:ParamsDict
Defined in: common/src/types.ts:127
Optionally pass in an EIP params dictionary, see one of the
EthereumJS library params.ts files for an example (e.g. tx, evm).
By default parameters are set by the respective library, so this
is only relevant if you want to use EthereumJS libraries with a
custom parameter set.
Example Format:
{
1559: {
initialBaseFee: 1000000000,
}
}