solana-dex-parser
Version:
Solana Dex Transaction Parser
59 lines • 2.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MeteoraParser = void 0;
const constants_1 = require("../../constants");
const utils_1 = require("../../utils");
const base_parser_1 = require("../base-parser");
class MeteoraParser extends base_parser_1.BaseParser {
processTrades() {
const trades = [];
this.classifiedInstructions.forEach(({ instruction, programId, outerIndex, innerIndex }) => {
if ([constants_1.DEX_PROGRAMS.METEORA.id, constants_1.DEX_PROGRAMS.METEORA_DAMM.id, constants_1.DEX_PROGRAMS.METEORA_DAMM_V2.id].includes(programId) &&
this.notLiquidityEvent(instruction)) {
const transfers = this.getTransfersForInstruction(programId, outerIndex, innerIndex);
if (transfers.length >= 2) {
const trade = this.utils.processSwapData(transfers, {
...this.dexInfo,
amm: this.dexInfo.amm || (0, utils_1.getProgramName)(programId),
});
if (trade) {
const pool = this.getPoolAddress(instruction, programId);
if (pool) {
trade.Pool = [pool];
}
trades.push(this.utils.attachTokenTransferInfo(trade, this.transferActions));
}
}
}
});
return trades;
}
getPoolAddress(instruction, programId) {
const accounts = this.adapter.getInstructionAccounts(instruction);
if (accounts.length > 5) {
switch (programId) {
case constants_1.DEX_PROGRAMS.METEORA_DAMM.id:
case constants_1.DEX_PROGRAMS.METEORA.id:
return accounts[0];
case constants_1.DEX_PROGRAMS.METEORA_DAMM_V2.id:
return accounts[1];
default:
return null;
}
}
return null;
}
notLiquidityEvent(instruction) {
const data = (0, utils_1.getInstructionData)(instruction);
if (!data)
return true;
const isDLMMLiquidity = Object.values(constants_1.DISCRIMINATORS.METEORA_DLMM)
.flatMap((it) => Object.values(it))
.some((it) => data.slice(0, it.length).equals(it));
const isPoolsLiquidity = Object.values(constants_1.DISCRIMINATORS.METEORA_DAMM).some((it) => data.slice(0, it.length).equals(it));
const isDAMMLiquidity = Object.values(constants_1.DISCRIMINATORS.METEORA_DAMM_V2).some((it) => data.slice(0, it.length).equals(it));
return !isDLMMLiquidity && !isPoolsLiquidity && !isDAMMLiquidity;
}
}
exports.MeteoraParser = MeteoraParser;
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