61 lines
1.6 KiB
TypeScript
61 lines
1.6 KiB
TypeScript
import { GasPriceOracle } from '@tornado/gas-price-oracle'
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import { GasPrice } from '@/types'
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import { ChainId } from '@/types'
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import { numbers, RPC_LIST } from '@/constants'
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import { getProvider } from '@/services'
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import { gweiToWei, bump } from '@/utilities'
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const SECONDS = 3
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const TEN_SECOND = SECONDS * numbers?.SECOND
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const percentBump = {
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INSTANT: 150,
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FAST: 130,
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STANDARD: 85,
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LOW: 50,
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}
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const getGasPrice = async (chainId: ChainId): Promise<GasPrice> => {
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if (chainId === ChainId.BSC) {
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return await getGasPriceFromRpc(chainId)
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}
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const instance = new GasPriceOracle({
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chainId,
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timeout: TEN_SECOND,
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defaultRpc: RPC_LIST[chainId],
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})
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const result = (await instance.gasPrices({ isLegacy: true })) as GasPrice
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if (chainId === ChainId.XDAI || chainId === ChainId.MAINNET) {
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return {
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instant: bump(gweiToWei(result.instant), percentBump.INSTANT),
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fast: bump(gweiToWei(result.instant), percentBump.FAST),
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standard: bump(gweiToWei(result.standard), percentBump.STANDARD),
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low: bump(gweiToWei(result.low), percentBump.LOW),
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}
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}
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return result
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}
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const getGasPriceFromRpc = async (chainId: ChainId) => {
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try {
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const { provider } = getProvider(chainId)
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const current = await provider.getGasPrice()
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return {
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instant: bump(current, percentBump.INSTANT),
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fast: bump(current, percentBump.FAST),
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standard: bump(current, percentBump.STANDARD),
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low: bump(current, percentBump.LOW),
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}
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} catch (err) {
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throw new Error('getGasPriceFromRpc has error')
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}
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}
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export { getGasPrice, getGasPriceFromRpc }
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