quickswap-smart-order-router
Version:
QuickSwap Smart Order Router
40 lines • 2.94 kB
JavaScript
import { parseUnits } from '@ethersproject/units';
import { CurrencyAmount as CurrencyAmountRaw, } from '@uniswap/sdk-core';
import { FeeAmount } from '@uniswap/v3-sdk';
import JSBI from 'jsbi';
export class CurrencyAmount extends CurrencyAmountRaw {
}
// Try to parse a user entered amount for a given token
export function parseAmount(value, currency) {
const typedValueParsed = parseUnits(value, currency.decimals).toString();
return CurrencyAmount.fromRawAmount(currency, JSBI.BigInt(typedValueParsed));
}
export function parseFeeAmount(feeAmountStr) {
switch (feeAmountStr) {
case '10000':
return FeeAmount.HIGH;
case '3000':
return FeeAmount.MEDIUM;
case '500':
return FeeAmount.LOW;
case '100':
return FeeAmount.LOWEST;
default:
throw new Error(`Fee amount ${feeAmountStr} not supported.`);
}
}
export function unparseFeeAmount(feeAmount) {
switch (feeAmount) {
case FeeAmount.HIGH:
return '10000';
case FeeAmount.MEDIUM:
return '3000';
case FeeAmount.LOW:
return '500';
case FeeAmount.LOWEST:
return '100';
default:
throw new Error(`Fee amount ${feeAmount} not supported.`);
}
}
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