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</a> parser-orca-liquidity.ts</h1>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { DEX_PROGRAMS, DISCRIMINATORS } from '../constants';
import { TransactionAdapter } from '../transaction-adapter';
import { TransactionUtils } from '../transaction-utils';
import { convertToUiAmount, PoolEvent, PoolEventType, TransferData } from '../types';
import { getInstructionData } from '../utils';
export class OrcaLiquidityParser {
private readonly utils: TransactionUtils;
<span class="fstat-no" title="function not covered" > constructor(private readonly <span class="cstat-no" title="statement not covered" >a</span>dapter: TransactionAdapter)</span> {
<span class="cstat-no" title="statement not covered" > this.utils = new TransactionUtils(adapter);</span>
}
public <span class="fstat-no" title="function not covered" >processLiquidity(</span>): PoolEvent[] {
const events = <span class="cstat-no" title="statement not covered" >this.adapter.instructions</span>
.map(<span class="fstat-no" title="function not covered" >(i</span>nstr: any, idx: number) => <span class="cstat-no" title="statement not covered" >this.processInstruction(instr, idx))</span>
.filter(<span class="fstat-no" title="function not covered" >(e</span>vent: any): event is PoolEvent => <span class="cstat-no" title="statement not covered" >event !== null)</span>;
<span class="cstat-no" title="statement not covered" > return events.length > 0 ? events : this.processInnerInstructions();</span>
}
private <span class="fstat-no" title="function not covered" >processInnerInstructions(</span>): PoolEvent[] {
<span class="cstat-no" title="statement not covered" > try {</span>
<span class="cstat-no" title="statement not covered" > return this.adapter.instructions.flatMap(<span class="fstat-no" title="function not covered" >(_</span>: any, idx: number) => <span class="cstat-no" title="statement not covered" >this.processInnerInstruction(idx))</span>;</span>
} catch (error) {
<span class="cstat-no" title="statement not covered" > console.error('Error processing Meteora inner instructions:', error);</span>
<span class="cstat-no" title="statement not covered" > return [];</span>
}
}
private <span class="fstat-no" title="function not covered" >processInnerInstruction(</span>outerIndex: number): PoolEvent[] {
<span class="cstat-no" title="statement not covered" > return (this.adapter.innerInstructions || [])</span>
.filter(<span class="fstat-no" title="function not covered" >(s</span>et) => <span class="cstat-no" title="statement not covered" >set.index === outerIndex)</span>
.flatMap(<span class="fstat-no" title="function not covered" >(s</span>et) =>
<span class="cstat-no" title="statement not covered" > set.instructions</span>
.map(<span class="fstat-no" title="function not covered" >(i</span>nstr, innerIdx) => <span class="cstat-no" title="statement not covered" >this.processInstruction(instr, outerIndex, innerIdx))</span>
.filter(<span class="fstat-no" title="function not covered" >(e</span>vent): event is PoolEvent => <span class="cstat-no" title="statement not covered" >event !== null)</span>
);
}
private <span class="fstat-no" title="function not covered" >processInstruction(</span>instruction: any, index: number, innerIndex?: number): PoolEvent | null {
const programId = <span class="cstat-no" title="statement not covered" >this.adapter.getInstructionProgramId(instruction);</span>
const parser = <span class="cstat-no" title="statement not covered" >this.getParser(programId);</span>
<span class="cstat-no" title="statement not covered" > return parser ? parser.parseInstruction(instruction, index, innerIndex) : null;</span>
}
private <span class="fstat-no" title="function not covered" >getParser(</span>programId: string): OrcaPoolParser | null {
<span class="cstat-no" title="statement not covered" > switch (programId) {</span>
case DEX_PROGRAMS.ORCA.id:
<span class="cstat-no" title="statement not covered" > return new OrcaPoolParser(this.adapter, this.utils);</span>
default:
<span class="cstat-no" title="statement not covered" > return null;</span>
}
}
}
class OrcaPoolParser {
<span class="fstat-no" title="function not covered" > constructor(</span>
private readonly <span class="cstat-no" title="statement not covered" >adapter: TransactionAdapter,</span>
private readonly <span class="cstat-no" title="statement not covered" >utils: TransactionUtils</span>
) { }
public <span class="fstat-no" title="function not covered" >getPoolAction(</span>data: any): 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" > if (</span>
instructionType.equals(DISCRIMINATORS.ORCA.ADD_LIQUIDITY) ||
instructionType.equals(DISCRIMINATORS.ORCA.ADD_LIQUIDITY2)
) {
<span class="cstat-no" title="statement not covered" > return 'ADD';</span>
} else <span class="cstat-no" title="statement not covered" ><span class="missing-if-branch" title="if path not taken" >I</span>if (instructionType.equals(DISCRIMINATORS.ORCA.REMOVE_LIQUIDITY)) {</span>
<span class="cstat-no" title="statement not covered" > return 'REMOVE';</span>
}
<span class="cstat-no" title="statement not covered" > return null;</span>
}
public <span class="fstat-no" title="function not covered" >parseInstruction(</span>instruction: any, index: number, innerIndex?: number): PoolEvent | null {
<span class="cstat-no" title="statement not covered" > try {</span>
const data = <span class="cstat-no" title="statement not covered" >getInstructionData(instruction);</span>
const action = <span class="cstat-no" title="statement not covered" >this.getPoolAction(data);</span>
<span class="cstat-no" title="statement not covered" > <span class="missing-if-branch" title="if path not taken" >I</span>if (!action) <span class="cstat-no" title="statement not covered" >return null;</span></span>
const transfers = <span class="cstat-no" title="statement not covered" >this.parseTransfers(instruction, index, innerIndex);</span>
<span class="cstat-no" title="statement not covered" > switch (action) {</span>
case 'ADD':
<span class="cstat-no" title="statement not covered" > return this.parseAddLiquidityEvent(instruction, index, data, transfers);</span>
case 'REMOVE':
<span class="cstat-no" title="statement not covered" > return this.parseRemoveLiquidityEvent(instruction, index, data, transfers);</span>
}
<span class="cstat-no" title="statement not covered" > return null;</span>
} catch (error) {
<span class="cstat-no" title="statement not covered" > console.error('parseInstruction error:', error);</span>
<span class="cstat-no" title="statement not covered" > return null;</span>
}
}
protected <span class="fstat-no" title="function not covered" >getInstructionId(</span>index: number, innerIndex?: number): string {
<span class="cstat-no" title="statement not covered" > return innerIndex === undefined ? index.toString() : `${index}-${innerIndex}`;</span>
}
protected <span class="fstat-no" title="function not covered" >parseTransfers(</span>instruction: any, index: number, innerIndex?: number): TransferData[] {
const curIdx = <span class="cstat-no" title="statement not covered" >this.getInstructionId(index, innerIndex);</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 this.utils</span>
.processTransferInstructions(index)
.filter(<span class="fstat-no" title="function not covered" >(t</span>ransfer) => <span class="cstat-no" title="statement not covered" >accounts.includes(transfer.info.destination) && transfer.idx >= curIdx)</span>;
}
private <span class="fstat-no" title="function not covered" >parseAddLiquidityEvent(</span>instruction: any, index: number, data: any, transfers: TransferData[]): PoolEvent {
const [token0, token1] = <span class="cstat-no" title="statement not covered" >this.utils.getLPTransfers(transfers);</span>
const token0Mint = <span class="cstat-no" title="statement not covered" >token0?.info.mint;</span>
const token1Mint = <span class="cstat-no" title="statement not covered" >token1?.info.mint;</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>
const [token0Decimals, token1Decimals] = <span class="cstat-no" title="statement not covered" >[this.adapter.getTokenDecimals(token0Mint), this.adapter.getTokenDecimals(token1Mint)];</span>
<span class="cstat-no" title="statement not covered" > return {</span>
...this.adapter.getPoolEventBase('ADD', programId),
idx: index.toString(),
poolId: accounts[0],
poolLpMint: accounts[0],
token0Mint: token0Mint,
token1Mint: token1Mint,
token0Amount:
token0?.info.tokenAmount.uiAmount ||
convertToUiAmount(data.readBigUInt64LE(32), token0Decimals),
token1Amount:
token1?.info.tokenAmount.uiAmount ||
convertToUiAmount(data.readBigUInt64LE(24), token1Decimals),
token0Decimals: token0Decimals,
token1Decimals: token1Decimals,
lpAmount: convertToUiAmount(data.readBigUInt64LE(8), this.adapter.getTokenDecimals(accounts[1])) || 0,
};
}
private <span class="fstat-no" title="function not covered" >parseRemoveLiquidityEvent(</span>instruction: any, index: number, data: any, transfers: TransferData[]): PoolEvent {
const [token0, token1] = <span class="cstat-no" title="statement not covered" >this.utils.getLPTransfers(transfers);</span>
const token0Mint = <span class="cstat-no" title="statement not covered" >token0?.info.mint;</span>
const token1Mint = <span class="cstat-no" title="statement not covered" >token1?.info.mint;</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>
const [token0Decimals, token1Decimals] = <span class="cstat-no" title="statement not covered" >[this.adapter.getTokenDecimals(token0Mint), this.adapter.getTokenDecimals(token1Mint)];</span>
<span class="cstat-no" title="statement not covered" > return {</span>
...this.adapter.getPoolEventBase('REMOVE', programId),
idx: index.toString(),
poolId: accounts[0],
poolLpMint: accounts[0],
token0Mint: token0Mint,
token1Mint: token1Mint,
token0Amount:
token0?.info.tokenAmount.uiAmount ||
convertToUiAmount(data.readBigUInt64LE(32), token0Decimals),
token1Amount:
token1?.info.tokenAmount.uiAmount ||
convertToUiAmount(data.readBigUInt64LE(24), token1Decimals),
token0Decimals: token0Decimals,
token1Decimals: token1Decimals,
lpAmount: convertToUiAmount(data.readBigUInt64LE(8), this.adapter.getTokenDecimals(accounts[1])),
};
}
}
</pre></td></tr></table></pre>
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