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 | 1x 1x 1x 1x | import { DEX_PROGRAMS, DISCRIMINATORS } from '../constants';
import { DexInfo, TradeInfo, TransferData } from '../types';
import { getInstructionData, getProgramName } from '../utils';
import { TransactionAdapter } from '../transaction-adapter';
import { TransactionUtils } from '../transaction-utils';
export class MeteoraParser {
private readonly utils: TransactionUtils;
constructor(
private readonly adapter: TransactionAdapter,
private readonly dexInfo: DexInfo,
private readonly transferActions: Record<string, TransferData[]>
) {
this.utils = new TransactionUtils(adapter);
}
public processTrades(): TradeInfo[] {
const trades: TradeInfo[] = [];
Object.entries(this.transferActions).forEach((it) => {
trades.push(...this.parseTransferAction(it));
});
return trades;
}
public parseTransferAction(transfer: [string, TransferData[]]): TradeInfo[] {
const trades: TradeInfo[] = [];
const [programId, idxs] = transfer[0].split(':');
const [outerIndex, innerIndex] = idxs.split('-');
Iif (transfer[1].length >= 2 && [DEX_PROGRAMS.METEORA.id, DEX_PROGRAMS.METEORA_POOLS.id].includes(programId)) {
const instruction = innerIndex
? this.adapter.getInnerInstruction(Number(outerIndex), Number(innerIndex))
: this.adapter.instructions[Number(outerIndex)];
Iif (this.notLiquidityEvent(instruction)) {
const trade = this.utils.processSwapData(transfer[1], {
...this.dexInfo,
amm: this.dexInfo.amm || getProgramName(programId),
});
Iif (trade) {
trades.push(trade);
}
}
}
return trades;
}
public processInstructionTrades(instruction: any, outerIndex: number, innerIndex?: number): TradeInfo[] {
try {
const accounts = this.adapter.getInstructionAccounts(instruction);
const curIdx = innerIndex === undefined ? outerIndex.toString() : `${outerIndex}-${innerIndex}`;
const transfers = this.processMeteoraSwaps(outerIndex).filter(
(it) => accounts.includes(it.info.destination) && it.idx >= curIdx
);
Iif (transfers.length > 0) {
const trade = this.utils.processSwapData(transfers, this.dexInfo);
Iif (trade) return [trade];
}
return [];
} catch (error) {
console.error('Error processing Meteora trades:', error);
return [];
}
}
public isTradeInstruction(instruction: any): boolean {
const programId = this.adapter.getInstructionProgramId(instruction);
return (
[DEX_PROGRAMS.METEORA.id, DEX_PROGRAMS.METEORA_POOLS.id].includes(programId) &&
this.notLiquidityEvent(instruction)
);
}
private notLiquidityEvent(instruction: any): boolean {
const data = getInstructionData(instruction);
Iif (!data) return true;
const instructionType = data.slice(0, 8);
const isDLMMLiquidity = Object.values(DISCRIMINATORS.METEORA_DLMM)
.flatMap((it) => Object.values(it))
.some((it) => instructionType.equals(it));
const isPoolsLiquidity = Object.values(DISCRIMINATORS.METEORA_POOLS).some((it) => instructionType.equals(it));
return !isDLMMLiquidity && !isPoolsLiquidity;
}
private processMeteoraSwaps(instructionIndex: number): TransferData[] {
const innerInstructions = this.adapter.innerInstructions;
Iif (!innerInstructions) return [];
return innerInstructions
.filter((set) => set.index === instructionIndex)
.flatMap((set) =>
set.instructions
.map((instruction, index) =>
this.notLiquidityEvent(instruction)
? this.utils.parseInstructionAction(instruction, `${instructionIndex}-${index}`)
: null
)
.filter((transfer): transfer is TransferData => transfer !== null)
);
}
}
|