Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | 1x 1x 1x 1x 1x 2x 2x 2x 4x 4x 4x 4x 20x 2x 2x 2x 2x 2x 4x 2x 2x | import { DEX_PROGRAMS, DISCRIMINATORS } from '../../constants';
import { InstructionClassifier } from '../../instruction-classifier';
import { TransactionAdapter } from '../../transaction-adapter';
import {
ClassifiedInstruction,
EventParser,
PumpswapBuyEvent,
PumpswapCreatePoolEvent,
PumpswapDepositEvent,
PumpswapEvent,
PumpswapSellEvent,
PumpswapWithdrawEvent,
} from '../../types';
import { getInstructionData } from '../../utils';
import { BinaryReader } from '../binary-reader';
export class PumpswapEventParser {
constructor(private readonly adapter: TransactionAdapter) {}
private readonly eventParsers: Record<string, EventParser<any>> = {
CREATE: {
discriminator: DISCRIMINATORS.PUMPSWAP.CREATE_POOL,
decode: this.decodeCreateEvent.bind(this),
},
ADD: {
discriminator: DISCRIMINATORS.PUMPSWAP.ADD_LIQUIDITY,
decode: this.decodeAddLiquidity.bind(this),
},
REMOVE: {
discriminator: DISCRIMINATORS.PUMPSWAP.REMOVE_LIQUIDITY,
decode: this.decodeRemoveLiquidity.bind(this),
},
BUY: {
discriminator: DISCRIMINATORS.PUMPSWAP.BUY,
decode: this.decodeBuyEvent.bind(this),
},
SELL: {
discriminator: DISCRIMINATORS.PUMPSWAP.SELL,
decode: this.decodeSellEvent.bind(this),
},
};
public processEvents(): PumpswapEvent[] {
const instructions = new InstructionClassifier(this.adapter).getInstructions(DEX_PROGRAMS.PUMP_SWAP.id);
return this.parseInstructions(instructions);
}
public parseInstructions(instructions: ClassifiedInstruction[]): PumpswapEvent[] {
return instructions
.map(({ instruction, outerIndex, innerIndex }) => {
try {
const data = getInstructionData(instruction);
const discriminator = Buffer.from(data.slice(0, 16));
for (const [type, parser] of Object.entries(this.eventParsers)) {
if (discriminator.equals(parser.discriminator)) {
const eventData = parser.decode(data.slice(16));
Iif (!eventData) return null;
const event = {
type: type as 'CREATE' | 'ADD' | 'REMOVE' | 'BUY' | 'SELL',
data: eventData,
slot: this.adapter.slot,
timestamp: this.adapter.blockTime || 0,
signature: this.adapter.signature,
idx: `${outerIndex}-${innerIndex ?? 0}`,
};
return event;
}
}
} catch (error) {
console.error('Failed to parse Pumpswap event:', error);
}
return null;
})
.filter((event): event is PumpswapEvent => event !== null);
}
private decodeBuyEvent(data: Buffer): PumpswapBuyEvent {
const reader = new BinaryReader(data);
return {
timestamp: Number(reader.readI64()),
baseAmountOut: reader.readU64(),
maxQuoteAmountIn: reader.readU64(),
userBaseTokenReserves: reader.readU64(),
userQuoteTokenReserves: reader.readU64(),
poolBaseTokenReserves: reader.readU64(),
poolQuoteTokenReserves: reader.readU64(),
quoteAmountIn: reader.readU64(),
lpFeeBasisPoints: reader.readU64(),
lpFee: reader.readU64(),
protocolFeeBasisPoints: reader.readU64(),
protocolFee: reader.readU64(),
quoteAmountInWithLpFee: reader.readU64(),
userQuoteAmountIn: reader.readU64(),
pool: reader.readPubkey(),
user: reader.readPubkey(),
userBaseTokenAccount: reader.readPubkey(),
userQuoteTokenAccount: reader.readPubkey(),
protocolFeeRecipient: reader.readPubkey(),
protocolFeeRecipientTokenAccount: reader.readPubkey(),
};
}
private decodeSellEvent(data: Buffer): PumpswapSellEvent {
const reader = new BinaryReader(data);
return {
timestamp: Number(reader.readI64()),
baseAmountIn: reader.readU64(),
minQuoteAmountOut: reader.readU64(),
userBaseTokenReserves: reader.readU64(),
userQuoteTokenReserves: reader.readU64(),
poolBaseTokenReserves: reader.readU64(),
poolQuoteTokenReserves: reader.readU64(),
quoteAmountOut: reader.readU64(),
lpFeeBasisPoints: reader.readU64(),
lpFee: reader.readU64(),
protocolFeeBasisPoints: reader.readU64(),
protocolFee: reader.readU64(),
quoteAmountOutWithoutLpFee: reader.readU64(),
userQuoteAmountOut: reader.readU64(),
pool: reader.readPubkey(),
user: reader.readPubkey(),
userBaseTokenAccount: reader.readPubkey(),
userQuoteTokenAccount: reader.readPubkey(),
protocolFeeRecipient: reader.readPubkey(),
protocolFeeRecipientTokenAccount: reader.readPubkey(),
};
}
private decodeAddLiquidity(data: Buffer): PumpswapDepositEvent {
const reader = new BinaryReader(data);
return {
timestamp: Number(reader.readI64()),
lpTokenAmountOut: reader.readU64(),
maxBaseAmountIn: reader.readU64(),
maxQuoteAmountIn: reader.readU64(),
userBaseTokenReserves: reader.readU64(),
userQuoteTokenReserves: reader.readU64(),
poolBaseTokenReserves: reader.readU64(),
poolQuoteTokenReserves: reader.readU64(),
baseAmountIn: reader.readU64(),
quoteAmountIn: reader.readU64(),
lpMintSupply: reader.readU64(),
pool: reader.readPubkey(),
user: reader.readPubkey(),
userBaseTokenAccount: reader.readPubkey(),
userQuoteTokenAccount: reader.readPubkey(),
userPoolTokenAccount: reader.readPubkey(),
};
}
private decodeCreateEvent(data: Buffer): PumpswapCreatePoolEvent {
const reader = new BinaryReader(data);
return {
timestamp: Number(reader.readI64()),
index: reader.readU16(),
creator: reader.readPubkey(),
baseMint: reader.readPubkey(),
quoteMint: reader.readPubkey(),
baseMintDecimals: reader.readU8(),
quoteMintDecimals: reader.readU8(),
baseAmountIn: reader.readU64(),
quoteAmountIn: reader.readU64(),
poolBaseAmount: reader.readU64(),
poolQuotAmount: reader.readU64(),
minimumLiquidity: reader.readU64(),
initialLiquidity: reader.readU64(),
lpTokenAmountOut: reader.readU64(),
poolBump: reader.readU8(),
pool: reader.readPubkey(),
lpMint: reader.readPubkey(),
userBaseTokenAccount: reader.readPubkey(),
userQuoteTokenAccount: reader.readPubkey(),
};
}
private decodeRemoveLiquidity(data: Buffer): PumpswapWithdrawEvent {
const reader = new BinaryReader(data);
return {
timestamp: Number(reader.readI64()),
lpTokenAmountIn: reader.readU64(),
minBaseAmountOut: reader.readU64(),
minQuoteAmountOut: reader.readU64(),
userBaseTokenReserves: reader.readU64(),
userQuoteTokenReserves: reader.readU64(),
poolBaseTokenReserves: reader.readU64(),
poolQuoteTokenReserves: reader.readU64(),
baseAmountOut: reader.readU64(),
quoteAmountOut: reader.readU64(),
lpMintSupply: reader.readU64(),
pool: reader.readPubkey(),
user: reader.readPubkey(),
userBaseTokenAccount: reader.readPubkey(),
userQuoteTokenAccount: reader.readPubkey(),
userPoolTokenAccount: reader.readPubkey(),
};
}
}
|