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 | 1x 1x 1x 1x | import { DEX_PROGRAMS, TOKENS } from '../constants';
import { DexInfo, PumpfunEvent, PumpfunTradeEvent, TradeInfo, TradeType, TransferData } from '../types';
import { PumpfunEventParser } from './parser-pumpfun-event';
import { TransactionAdapter } from '../transaction-adapter';
import { TransactionUtils } from '../transaction-utils';
export class PumpfunParser {
private eventParser: PumpfunEventParser;
private readonly utils: TransactionUtils;
constructor(
private readonly adapter: TransactionAdapter,
private readonly dexInfo: DexInfo,
private readonly transferActions: Record<string, TransferData[]>
) {
this.utils = new TransactionUtils(adapter);
this.eventParser = new PumpfunEventParser(this.adapter);
}
public processTrades(): TradeInfo[] {
const events = this.eventParser.processEvents().filter((it) => it.type == 'TRADE');
return events.length > 0 ? this.processSwapData(events) : [];
}
public parseTransferAction(transfer: [string, TransferData[]]): TradeInfo[] {
const [, idxs] = transfer[0].split(':');
const [outerIndex] = idxs.split('-');
const events = this.parseInnerInstructions(Number(outerIndex));
return events.length > 0 ? this.processSwapData(events) : [];
}
private parseInnerInstructions(instructionIndex: number): PumpfunEvent[] {
return this.eventParser.parseInnerInstructions(instructionIndex).filter((it) => it.type == 'TRADE');
}
private processSwapData(events: PumpfunEvent[]): TradeInfo[] {
Iif (!events.length) return [];
return events.map((event) => this.createTradeInfo(event));
}
private createTradeInfo(data: PumpfunEvent): TradeInfo {
const event = data.data as PumpfunTradeEvent;
const tradeType: TradeType = event.isBuy ? 'BUY' : 'SELL';
const isBuy = tradeType === 'BUY';
const trade: TradeInfo = {
type: tradeType,
inputToken: {
mint: isBuy ? TOKENS.SOL : event.mint,
amount: isBuy ? event.solAmount : event.tokenAmount,
decimals: isBuy ? 9 : 6,
},
outputToken: {
mint: isBuy ? event.mint : TOKENS.SOL,
amount: isBuy ? event.tokenAmount : event.solAmount,
decimals: isBuy ? 6 : 9,
},
user: event.user,
programId: this.dexInfo.programId || DEX_PROGRAMS.PUMP_FUN.id,
amm: DEX_PROGRAMS.PUMP_FUN.name,
route: this.dexInfo.route || '',
slot: data.slot,
timestamp: data.timestamp,
signature: data.signature,
idx: data.idx,
};
return this.utils.attachTokenTransferInfo(trade, this.transferActions);
}
}
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