@indigo-labs/dexter/build/dex/api/sundaeswap-v3-api.js

Customizable Typescript SDK for interacting with Cardano DEXs

import { BaseApi } from './base-api';
import { Asset } from '../models/asset';
import { LiquidityPool } from '../models/liquidity-pool';
import axios from 'axios';
import { appendSlash } from '../../utils';
import { SundaeSwapV3 } from '../sundaeswap-v3';
export class SundaeSwapV3Api extends BaseApi {
    constructor(dex, requestConfig) {
        super();
        this.dex = dex;
        this.api = axios.create({
            timeout: requestConfig.timeout,
            baseURL: `${appendSlash(requestConfig.proxyUrl)}https://api.sundae.fi/graphql`,
            headers: {
                'Content-Type': 'application/json',
            }
        });
    }
    async liquidityPools(assetA, assetB) {
        const assetAId = (assetA === 'lovelace')
            ? 'ada.lovelace'
            : assetA.identifier('.');
        const assetBId = (assetB && assetB !== 'lovelace')
            ? assetB.identifier('.')
            : 'ada.lovelace';
        const assets = [assetAId, assetBId];
        return await this.api.post('', {
            operationName: 'fetchPoolsByPair',
            query: `query fetchPoolsByPair($assetA: ID!, $assetB: ID!) {\n  pools {\n    byPair(assetA: $assetA, assetB: $assetB) {\n      ...PoolBrambleFragment\n    }\n  }\n}\n\nfragment PoolBrambleFragment on Pool {\n  id\n  assetA {\n    ...AssetBrambleFragment\n  }\n  assetB {\n    ...AssetBrambleFragment\n  }\n  assetLP {\n    ...AssetBrambleFragment\n  }\n  feesFinalized {\n    slot\n  }\n  marketOpen {\n    slot\n  }\n  askFee\n  bidFee\n  feeManagerId\n  current {\n    quantityA {\n      quantity\n    }\n    quantityB {\n      quantity\n    }\n    quantityLP {\n      quantity\n    }\n    tvl {\n      quantity\n    }\n  }\n  version\n}\n\nfragment AssetBrambleFragment on Asset {\n  id\n  policyId\n  description\n  dateListed {\n    format\n  }\n  decimals\n  ticker\n  name\n  logo\n  assetName\n  metadata {\n    ... on OnChainLabel20 {\n      __typename\n    }\n    ... on OnChainLabel721 {\n      __typename\n    }\n    ... on CardanoTokenRegistry {\n      __typename\n    }\n  }\n}`,
            variables: {
                assetA: assets[0],
                assetB: assets[1],
            },
        }).then((response) => {
            const pools = response.data.data.pools.byPair;
            return pools
                .filter((pool) => pool.version === 'V3')
                .map((pool) => {
                let liquidityPool = new LiquidityPool(SundaeSwapV3.identifier, pool.assetA.id === 'ada.lovelace'
                    ? 'lovelace'
                    : Asset.fromIdentifier(pool.assetA.id, pool.assetA.decimals), pool.assetB.id === 'ada.lovelace'
                    ? 'lovelace'
                    : Asset.fromIdentifier(pool.assetB.id, pool.assetB.decimals), BigInt(pool.current.quantityA.quantity), BigInt(pool.current.quantityB.quantity), this.dex.poolAddress, '', '');
                liquidityPool.identifier = pool.id;
                liquidityPool.lpToken = Asset.fromIdentifier(pool.assetLP.id);
                liquidityPool.poolFeePercent = Number((pool.bidFee[0] / pool.bidFee[1]) * 100);
                liquidityPool.totalLpTokens = BigInt(pool.current.quantityLP.quantity);
                return liquidityPool;
            });
        });
    }
}