@uniswap/smart-order-router
Version:
Uniswap Smart Order Router
78 lines • 7.71 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.StaticV4SubgraphProvider = void 0;
const v4_sdk_1 = require("@uniswap/v4-sdk");
const jsbi_1 = __importDefault(require("jsbi"));
const lodash_1 = __importDefault(require("lodash"));
const util_1 = require("../../util");
const caching_subgraph_provider_1 = require("../caching-subgraph-provider");
class StaticV4SubgraphProvider {
constructor(chainId, poolProvider, v4PoolParams = (0, util_1.getApplicableV4FeesTickspacingsHooks)(chainId)) {
this.chainId = chainId;
this.poolProvider = poolProvider;
this.v4PoolParams = v4PoolParams;
}
async getPools(currencyIn, currencyOut, providerConfig) {
util_1.log.info('In static subgraph provider for V4');
const bases = caching_subgraph_provider_1.BASES_TO_CHECK_TRADES_AGAINST[this.chainId];
const basePairs = lodash_1.default.flatMap(bases, (base) => bases.map((otherBase) => [base, otherBase]));
if (currencyIn && currencyOut) {
basePairs.push([currencyIn, currencyOut], ...bases.map((base) => [currencyIn, base]), ...bases.map((base) => [currencyOut, base]));
}
const pairs = (0, lodash_1.default)(basePairs)
.filter((tokens) => Boolean(tokens[0] && tokens[1]))
.filter(([tokenA, tokenB]) => tokenA.wrapped.address !== tokenB.wrapped.address &&
!tokenA.equals(tokenB))
.flatMap(([tokenA, tokenB]) => {
const tokensWithPoolParams = this.v4PoolParams.map(([feeAmount, tickSpacing, hooks]) => {
return [tokenA, tokenB, feeAmount, tickSpacing, hooks];
});
return tokensWithPoolParams;
})
.value();
util_1.log.info(`V4 Static subgraph provider about to get ${pairs.length} pools on-chain`);
const poolAccessor = await this.poolProvider.getPools(pairs, providerConfig);
const pools = poolAccessor.getAllPools();
const poolAddressSet = new Set();
const subgraphPools = (0, lodash_1.default)(pools)
.map((pool) => {
const { token0, token1, fee, tickSpacing, hooks, liquidity } = pool;
const poolAddress = v4_sdk_1.Pool.getPoolId(token0, token1, fee, tickSpacing, hooks);
if (poolAddressSet.has(poolAddress)) {
return undefined;
}
poolAddressSet.add(poolAddress);
const liquidityNumber = jsbi_1.default.toNumber(liquidity);
return {
id: poolAddress,
feeTier: fee.toString(),
tickSpacing: tickSpacing.toString(),
hooks: hooks,
liquidity: liquidity.toString(),
token0: {
symbol: token0.symbol,
id: (0, util_1.getAddress)(token0),
name: token0.name,
decimals: token0.decimals.toString(),
},
token1: {
symbol: token1.symbol,
id: (0, util_1.getAddress)(token1),
name: token1.name,
decimals: token1.decimals.toString(),
},
// As a very rough proxy we just use liquidity for TVL.
tvlETH: liquidityNumber,
tvlUSD: liquidityNumber,
};
})
.compact()
.value();
return subgraphPools;
}
}
exports.StaticV4SubgraphProvider = StaticV4SubgraphProvider;
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