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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | 1x 1x 1x | import { DISCRIMINATORS } from '../../constants';
import { PoolEventType } from '../../types';
import { RaydiumLiquidityParserBase, ParseEventConfig } from './parser-raydium-liquidity-base';
export class RaydiumCPMMPoolParser extends RaydiumLiquidityParserBase {
public getPoolAction(data: Buffer): PoolEventType | null {
const instructionType = data.slice(0, 8);
Iif (instructionType.equals(DISCRIMINATORS.RAYDIUM_CPMM.CREATE)) return 'CREATE';
Iif (instructionType.equals(DISCRIMINATORS.RAYDIUM_CPMM.ADD_LIQUIDITY)) return 'ADD';
Iif (instructionType.equals(DISCRIMINATORS.RAYDIUM_CPMM.REMOVE_LIQUIDITY)) return 'REMOVE';
return null;
}
public getEventConfig(type: PoolEventType): ParseEventConfig {
const configs = {
CREATE: {
eventType: 'CREATE' as const,
poolIdIndex: 3,
lpMintIndex: 6,
tokenAmountOffsets: { token0: 8, token1: 16, lp: 0 },
},
ADD: {
eventType: 'ADD' as const,
poolIdIndex: 2,
lpMintIndex: 12,
tokenAmountOffsets: { token0: 16, token1: 24, lp: 8 },
},
REMOVE: {
eventType: 'REMOVE' as const,
poolIdIndex: 2,
lpMintIndex: 12,
tokenAmountOffsets: { token0: 16, token1: 24, lp: 8 },
},
};
return configs[type];
}
}
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