solana-dex-parser
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Solana Dex Transaction Parser
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<h1><a href="../../../index.html">All files</a> / <a href="index.html">src/parsers/meteora</a> liquidity-meteora-dlmm.ts</h1>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { DISCRIMINATORS, TOKENS } from '../../constants';
import { PoolEvent, PoolEventType, TransferData } from '../../types';
import { MeteoraLiquidityParserBase } from './parser-meteora-liquidity-base';
export class MeteoraDLMMPoolParser extends MeteoraLiquidityParserBase {
public <span class="fstat-no" title="function not covered" >getPoolAction(</span>data: Buffer): { name: string; type: PoolEventType } | null {
const instructionType = <span class="cstat-no" title="statement not covered" >data.slice(0, 8);</span>
<span class="cstat-no" title="statement not covered" > for (const [name, discriminator] of Object.entries(DISCRIMINATORS.METEORA_DLMM.ADD_LIQUIDITY)) {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (instructionType.equals(discriminator)) {</span>
<span class="cstat-no" title="statement not covered" > return { name, type: 'ADD' };</span>
}
}
<span class="cstat-no" title="statement not covered" > for (const [name, discriminator] of Object.entries(DISCRIMINATORS.METEORA_DLMM.REMOVE_LIQUIDITY)) {</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (instructionType.equals(discriminator)) {</span>
<span class="cstat-no" title="statement not covered" > return { name, type: 'REMOVE' };</span>
}
}
<span class="cstat-no" title="statement not covered" > return null;</span>
}
protected <span class="fstat-no" title="function not covered" >parseAddLiquidityEvent(</span>
instruction: any,
index: number,
data: Buffer,
transfers: TransferData[]
): PoolEvent {
const [token0, token1] = <span class="cstat-no" title="statement not covered" >this.normalizeTokens(transfers);</span>
const programId = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionProgramId(instruction);</span>
const accounts = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionAccounts(instruction);</span>
<span class="cstat-no" title="statement not covered" > return {</span>
...this.adapter.getPoolEventBase('ADD', programId),
idx: index.toString(),
poolId: accounts[1],
poolLpMint: accounts[1],
token0Mint: token0?.info.mint,
token1Mint: token1?.info.mint,
token0Amount: token0?.info.tokenAmount.uiAmount || 0,
token0AmountRaw: token0?.info.tokenAmount.amount,
token1Amount: token1?.info.tokenAmount.uiAmount || 0,
token1AmountRaw: token1?.info.tokenAmount.amount,
token0Decimals: token0 && this.adapter.getTokenDecimals(token0?.info.mint),
token1Decimals: token1 && this.adapter.getTokenDecimals(token1?.info.mint),
};
}
protected <span class="fstat-no" title="function not covered" >parseRemoveLiquidityEvent(</span>
instruction: any,
index: number,
data: Buffer,
transfers: TransferData[]
): PoolEvent {
const accounts = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionAccounts(instruction);</span>
let [token0, token1] = <span class="cstat-no" title="statement not covered" >this.normalizeTokens(transfers);</span>
<span class="cstat-no" title="statement not covered" > if (token1 == undefined && token0?.info.mint == accounts[8]) {</span>
<span class="cstat-no" title="statement not covered" > token1 = token0;</span>
<span class="cstat-no" title="statement not covered" > token0 = undefined;</span>
} else <span class="cstat-no" title="statement not covered" ><span class="missing-if-branch" title="if path not taken" >I</span>if (token0 == undefined && token1?.info.mint == accounts[7]) {</span>
<span class="cstat-no" title="statement not covered" > token0 = token1;</span>
<span class="cstat-no" title="statement not covered" > token1 = undefined;</span>
}
const token0Mint = <span class="cstat-no" title="statement not covered" >token0?.info.mint || accounts[7];</span>
const token1Mint = <span class="cstat-no" title="statement not covered" >token1?.info.mint || accounts[8];</span>
const programId = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionProgramId(instruction);</span>
<span class="cstat-no" title="statement not covered" > return {</span>
...this.adapter.getPoolEventBase('REMOVE', programId),
idx: index.toString(),
poolId: accounts[1],
poolLpMint: accounts[1],
token0Mint: token0?.info.mint || accounts[7],
token1Mint: token1?.info.mint || accounts[8],
token0Amount: token0?.info.tokenAmount.uiAmount || 0,
token0AmountRaw: token0?.info.tokenAmount.amount,
token1Amount: token1?.info.tokenAmount.uiAmount || 0,
token1AmountRaw: token1?.info.tokenAmount.amount,
token0Decimals: this.adapter.getTokenDecimals(token0Mint),
token1Decimals: this.adapter.getTokenDecimals(token1Mint),
};
}
private <span class="fstat-no" title="function not covered" >normalizeTokens(</span>transfers: TransferData[]): [TransferData | undefined, TransferData | undefined] {
let [token0, token1] = <span class="cstat-no" title="statement not covered" >this.utils.getLPTransfers(transfers);</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (transfers.length === 1 && transfers[0].info.mint == TOKENS.SOL) {</span>
<span class="cstat-no" title="statement not covered" > token1 = transfers[0];</span>
<span class="cstat-no" title="statement not covered" > token0 = null as unknown as TransferData;</span>
}
<span class="cstat-no" title="statement not covered" > return [token0, token1];</span>
}
}
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