solana-dex-parser/src/parsers/raydium/liquidity-raydium-v4.ts

Solana Dex Transaction Parser

import { DISCRIMINATORS } from '../../constants';
import { PoolEventType } from '../../types';
import { RaydiumLiquidityParserBase, ParseEventConfig } from './parser-raydium-liquidity-base';

export class RaydiumV4PoolParser extends RaydiumLiquidityParserBase {
  public getPoolAction(data: Buffer): PoolEventType | null {
    const instructionType = data.slice(0, 1);
    if (instructionType.equals(DISCRIMINATORS.RAYDIUM.CREATE)) return 'CREATE';
    if (instructionType.equals(DISCRIMINATORS.RAYDIUM.ADD_LIQUIDITY)) return 'ADD';
    if (instructionType.equals(DISCRIMINATORS.RAYDIUM.REMOVE_LIQUIDITY)) return 'REMOVE';
    return null;
  }

  public getEventConfig(type: PoolEventType): ParseEventConfig {
    const configs = {
      CREATE: { eventType: 'CREATE' as const, poolIdIndex: 4, lpMintIndex: 7 },
      ADD: { eventType: 'ADD' as const, poolIdIndex: 1, lpMintIndex: 5 },
      REMOVE: { eventType: 'REMOVE' as const, poolIdIndex: 1, lpMintIndex: 5 },
    };
    return configs[type];
  }
}