@oraichain/oraidex-evm-sdk/dist/osor/osorPriceImpact.js

Oraidex EVM SDK

import Decimal from 'decimal.js';
import { computePriceImpact, getMidPriceFromPaths } from '../oraidex/libs';
export const computePriceImpactFromOsorResponse = async (osorResponse, poolDataProvider) => {
    const { swapAmount, returnAmount, routes } = osorResponse;
    const midPriceRoutes = await Promise.all(routes.map((route) => getMidPriceFromPaths(route.paths, poolDataProvider)));
    const swapAmounts = routes.map((route) => route.swapAmount);
    const midPrice = midPriceRoutes
        .reduce((acc, curr, index) => {
        return acc.add(curr.mul(swapAmounts[index]));
    }, new Decimal(0))
        .div(swapAmount);
    const inputAmount = {
        currency: {
            chainId: '',
            address: '',
            decimals: 0,
            symbol: '',
        },
        amount: swapAmount,
    };
    const outputAmount = {
        currency: {
            chainId: '',
            address: '',
            decimals: 0,
            symbol: '',
        },
        amount: returnAmount,
    };
    return computePriceImpact(midPrice, inputAmount, outputAmount);
};
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