32 lines
750 B
JavaScript
32 lines
750 B
JavaScript
const { BigNumber } = require('ethers')
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const { poseidon } = require('circomlib')
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/** BigNumber to hex string of specified length */
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const toFixedHex = (number, length = 32) =>
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'0x' +
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(number instanceof Buffer
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? number.toString('hex')
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: BigNumber.from(number).toHexString().slice(2)
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).padStart(length * 2, '0')
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const poseidonHash = (items) => toFixedHex(poseidon(items))
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const poseidonHash2 = (a, b) => poseidonHash([a, b])
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const action = Object.freeze({ DEPOSIT: 'deposit', WITHDRAWAL: 'withdrawal' })
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const prefix = {
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1: '',
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5: 'goerli.',
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42: 'kovan.',
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}
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const getExplorer = (netId) => `https://${prefix[netId]}etherscan.io`
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module.exports = {
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toFixedHex,
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poseidonHash,
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poseidonHash2,
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getExplorer,
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action,
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}
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