fix(flaunch): fail closed on missing/zero Uniswap quotes - #1423
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getAmountWithSlippage returned 0n when the quote was null/zero, which became amountOutMinimum=0 on buy/sell. Throw instead and reject zero min-out at ethToMemecoin / memecoinToEthWithPermit2 (WOW coinbase#1421 twin).
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This was referenced Aug 9, 2026
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Summary
getAmountWithSlippagereturned0nwhen the Uniswap quote wasnull/zero, which becameamountOutMinimum/ethOutMin= 0 on flaunch buy/sell (fail-open sandwich path).ethToMemecoinandmemecoinToEthWithPermit2.Test plan
npm test -- --testPathPattern='flaunch/'(22 passed)Made with Cursor