@eth-optimism/core-utils NPM | npm.io

0.0.0-202242872411 • Published 4 years ago

Install

Weekly downloads

640

License

MIT

Repository

Last release

4 years ago

@eth-optimism/core-utils

What is this?

@eth-optimism/core-utils contains the Optimistic Virtual Machine core utilities.

Getting started

Building and usage

After cloning and switching to the repository, install dependencies:

$ yarn

Use the following commands to build, use, test, and lint:

$ yarn build
$ yarn start
$ yarn test
$ yarn lint

L2 Fees

TxGasLimit can be used to encode and decode the L2 Gas Limit locally.

import { TxGasLimit } from '@eth-optimism/core-utils'
import { JsonRpcProvider } from 'ethers'

const L2Provider = new JsonRpcProvider('https://mainnet.optimism.io')
const L1Provider = new JsonRpcProvider('http://127.0.0.1:8545')

const l2GasLimit = await L2Provider.send('eth_estimateExecutionGas', [tx])
const l1GasPrice = await L1Provider.getGasPrice()

const encoded = TxGasLimit.encode({
  data: '0x',
  l1GasPrice,
  l2GasLimit,
  l2GasPrice: 10000000,
})

const decoded = TxGasLimit.decode(encoded)
assert(decoded.eq(gasLimit))

const estimate = await L2Provider.estimateGas()
assert(estimate.eq(encoded))

optimism ethereum core utils

@ethersproject/abstract-provider @ethersproject/providers @ethersproject/transactions bufio chai ethers

@infinitebrahmanuniverse/nolb-_et @everything-registry/sub-chunk-299 @uma/sdk @tokamak-network/titan-contracts @tokamak-network/titan-sdk @tokamak-network/titan2-sdk @tokamak-network/tokamak-layer2-sdk @zalastax/nolb-_et @nidzweb3/sdk @nidzweb3/sdk-optimism titan.github.io tokamak-multichain @eth-optimism/ovm-toolchain metiseth-optimism-contracts @lightlink-network/ll-sdk @kukoomomo/contracts @across-protocol/boba-sdk @across-protocol/optimism-sdk @bobanetwork/contracts @bobanetwork/core_contracts @bobanetwork/sdk @chugsplash/core @chugsplash/plugins @autobahn-network/ts-utils @autobahn-network/sdk @roninjin10/actor-tests @roninjin10/common-ts @roninjin10/contracts @roninjin10/contracts-bedrock @roninjin10/sdk @constellation-labs/bedrock-sdk @ethan-local-test/contracts @ethan-local-test/contracts-bedrock @ethan-local-test/sdk @eth-optimism/common-ts @eth-optimism/contracts @eth-optimism/contracts-governance @eth-optimism/core-db @eth-optimism/actor-tests @eth-optimism/chugsplash @eth-bitnetwork/sdk @eth-optimism/rollup-full-node @eth-optimism/sdk @eth-optimism/service-base @eth-optimism/smock @eth-optimism/solc-transpiler @eth-optimism/data-transport-layer @eth-optimism/message-relayer @eth-optimism/optimistic-game-semantics @eth-optimism/ovm @eth-optimism/provider @eth-optimism/rollup-contracts @eth-optimism/rollup-core @eth-optimism/rollup-dev-tools

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