solana-dex-parser
Version:
Solana Dex Transaction Parser
502 lines (488 loc) • 26.1 kB
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<h1><a href="../../../index.html">All files</a> / <a href="index.html">src/parsers/moonshot</a> parser-moonshot.ts</h1>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { TokenAmount } from '@solana/web3.js';
import { DEX_PROGRAMS, DISCRIMINATORS, TOKENS } from '../../constants';
import { convertToUiAmount, TradeInfo, TradeType } from '../../types';
import { absBigInt, getInstructionData } from '../../utils';
import { BaseParser } from '../base-parser';
export class MoonshotParser extends BaseParser {
public <span class="fstat-no" title="function not covered" >processTrades(</span>): TradeInfo[] {
const trades: TradeInfo[] = <span class="cstat-no" title="statement not covered" >[];</span>
<span class="cstat-no" title="statement not covered" > this.classifiedInstructions.forEach(<span class="fstat-no" title="function not covered" >({</span> instruction, programId, outerIndex, innerIndex }) => {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (this.isTradeInstruction(instruction, programId)) {</span>
const trade = <span class="cstat-no" title="statement not covered" >this.parseTradeInstruction(instruction, `${outerIndex}-${innerIndex ?? 0}`);</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (trade) {</span>
<span class="cstat-no" title="statement not covered" > trades.push(trade);</span>
}
}
});
<span class="cstat-no" title="statement not covered" > return trades;</span>
}
private <span class="fstat-no" title="function not covered" >isTradeInstruction(</span>instruction: any, programId: string): boolean {
const accounts = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionAccounts(instruction);</span>
<span class="cstat-no" title="statement not covered" > return programId === DEX_PROGRAMS.MOONSHOT.id && accounts && accounts.length === 11;</span>
}
private <span class="fstat-no" title="function not covered" >parseTradeInstruction(</span>instruction: any, idx: string): TradeInfo | null {
<span class="cstat-no" title="statement not covered" > try {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (!('data' in instruction)) <span class="cstat-no" title="statement not covered" >return null;</span></span>
const data = <span class="cstat-no" title="statement not covered" >getInstructionData(instruction);</span>
const discriminator = <span class="cstat-no" title="statement not covered" >data.slice(0, 8);</span>
let tradeType: TradeType;
<span class="cstat-no" title="statement not covered" > if (discriminator.equals(DISCRIMINATORS.MOONSHOT.BUY)) {</span>
<span class="cstat-no" title="statement not covered" > tradeType = 'BUY';</span>
} else <span class="cstat-no" title="statement not covered" >if (discriminator.equals(DISCRIMINATORS.MOONSHOT.SELL)) {</span>
<span class="cstat-no" title="statement not covered" > tradeType = 'SELL';</span>
} else {
<span class="cstat-no" title="statement not covered" > return null;</span>
}
const moonshotTokenMint = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionAccounts(instruction)[6];</span>
const accountKeys = <span class="cstat-no" title="statement not covered" >this.adapter.accountKeys;</span>
const collateralMint = <span class="cstat-no" title="statement not covered" >this.detectCollateralMint(accountKeys);</span>
const { tokenAmount, collateralAmount } = <span class="cstat-no" title="statement not covered" >this.calculateAmounts(moonshotTokenMint, collateralMint);</span>
const trade: TradeInfo = <span class="cstat-no" title="statement not covered" >{</span>
type: tradeType,
inputToken: {
mint: tradeType === 'BUY' ? collateralMint : moonshotTokenMint,
amount: tradeType === 'BUY' ? (collateralAmount.uiAmount ?? 0) : (tokenAmount.uiAmount ?? 0),
amountRaw: tradeType === 'BUY' ? collateralAmount.amount : tokenAmount.amount,
decimals: tradeType === 'BUY' ? collateralAmount.decimals : tokenAmount.decimals,
},
outputToken: {
mint: tradeType === 'BUY' ? moonshotTokenMint : collateralMint,
amount: tradeType === 'BUY' ? (tokenAmount.uiAmount ?? 0) : (collateralAmount.uiAmount ?? 0),
amountRaw: tradeType === 'BUY' ? tokenAmount.amount : collateralAmount.amount,
decimals: tradeType === 'BUY' ? tokenAmount.decimals : collateralAmount.decimals,
},
user: this.adapter.signer,
programId: DEX_PROGRAMS.MOONSHOT.id,
amm: DEX_PROGRAMS.MOONSHOT.name,
route: this.dexInfo.route || '',
slot: this.adapter.slot,
timestamp: this.adapter.blockTime,
signature: this.adapter.signature,
idx,
};
<span class="cstat-no" title="statement not covered" > return this.utils.attachTokenTransferInfo(trade, this.transferActions);</span>
} catch (error) {
<span class="cstat-no" title="statement not covered" > console.error('Failed to parse Moonshot trade:', error);</span>
<span class="cstat-no" title="statement not covered" > return null;</span>
}
}
private <span class="fstat-no" title="function not covered" >detectCollateralMint(</span>accountKeys: string[]): string {
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (accountKeys.some(<span class="fstat-no" title="function not covered" >(k</span>ey) => <span class="cstat-no" title="statement not covered" >key === TOKENS.USDC)</span>) <span class="cstat-no" title="statement not covered" >return TOKENS.USDC;</span></span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (accountKeys.some(<span class="fstat-no" title="function not covered" >(k</span>ey) => <span class="cstat-no" title="statement not covered" >key === TOKENS.USDT)</span>) <span class="cstat-no" title="statement not covered" >return TOKENS.USDT;</span></span>
<span class="cstat-no" title="statement not covered" > return TOKENS.SOL;</span>
}
private <span class="fstat-no" title="function not covered" >calculateAmounts(</span>tokenMint: string, collateralMint: string) {
const tokenBalanceChanges = <span class="cstat-no" title="statement not covered" >this.getTokenBalanceChanges(tokenMint);</span>
const collateralBalanceChanges = <span class="cstat-no" title="statement not covered" >this.getTokenBalanceChanges(collateralMint);</span>
<span class="cstat-no" title="statement not covered" > return {</span>
tokenAmount: this.createTokenAmount(absBigInt(tokenBalanceChanges), tokenMint),
collateralAmount: this.createTokenAmount(absBigInt(collateralBalanceChanges), collateralMint),
};
}
private <span class="fstat-no" title="function not covered" >getTokenBalanceChanges(</span>mint: string): bigint {
const signer = <span class="cstat-no" title="statement not covered" >this.adapter.signer;</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (mint === TOKENS.SOL) {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (!this.adapter.postBalances?.[0] || !this.adapter.preBalances?.[0]) {</span>
<span class="cstat-no" title="statement not covered" > throw new Error('Insufficient balance information for SOL');</span>
}
<span class="cstat-no" title="statement not covered" > return BigInt(this.adapter.postBalances[0] - this.adapter.preBalances[0]);</span>
}
let preAmount = <span class="cstat-no" title="statement not covered" >BigInt(0);</span>
let postAmount = <span class="cstat-no" title="statement not covered" >BigInt(0);</span>
let balanceFound = <span class="cstat-no" title="statement not covered" >false;</span>
<span class="cstat-no" title="statement not covered" > this.adapter.preTokenBalances?.forEach(<span class="fstat-no" title="function not covered" >(p</span>reBalance) => {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (preBalance.mint === mint && preBalance.owner === signer) {</span>
<span class="cstat-no" title="statement not covered" > preAmount = BigInt(preBalance.uiTokenAmount.amount);</span>
<span class="cstat-no" title="statement not covered" > balanceFound = true;</span>
}
});
<span class="cstat-no" title="statement not covered" > this.adapter.postTokenBalances?.forEach(<span class="fstat-no" title="function not covered" >(p</span>ostBalance) => {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (postBalance.mint === mint && postBalance.owner === signer) {</span>
<span class="cstat-no" title="statement not covered" > postAmount = BigInt(postBalance.uiTokenAmount.amount);</span>
<span class="cstat-no" title="statement not covered" > balanceFound = true;</span>
}
});
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (!balanceFound) {</span>
<span class="cstat-no" title="statement not covered" > throw new Error('Could not find balance for specified mint and signer');</span>
}
<span class="cstat-no" title="statement not covered" > return postAmount - preAmount;</span>
}
private <span class="fstat-no" title="function not covered" >createTokenAmount(</span>amount: bigint, mint: string): TokenAmount {
const decimals = <span class="cstat-no" title="statement not covered" >this.adapter.getTokenDecimals(mint);</span>
<span class="cstat-no" title="statement not covered" > return {</span>
amount: amount.toString(),
uiAmount: convertToUiAmount(amount, decimals),
decimals,
};
}
}
</pre></td></tr></table></pre>
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