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Ensure gas costs are accounted for when calculating the amount of eth received in a swap (#9494)

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Dan J Miller 2020-10-06 21:38:09 -02:30 committed by GitHub
parent 46bcba2d63
commit 534ac25a93
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1 changed files with 8 additions and 2 deletions
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10
ui/app/pages/swaps/swaps.util.js
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@ -366,10 +366,16 @@ export function quotesToRenderableData (quotes, gasPrice, conversionRate, curren
export function getSwapsTokensReceivedFromTxMeta (tokenSymbol, txMeta, tokenAddress, accountAddress, tokenDecimals) { export function getSwapsTokensReceivedFromTxMeta (tokenSymbol, txMeta, tokenAddress, accountAddress, tokenDecimals) {
if (tokenSymbol === 'ETH') { if (tokenSymbol === 'ETH') {
if (!txMeta?.postTxBalance || !txMeta?.preTxBalance) { if (!txMeta || !txMeta.postTxBalance || !txMeta.preTxBalance) {
return null return null
} }
const ethReceived = subtractCurrencies(txMeta.postTxBalance, txMeta.preTxBalance, { const gasCost = calcGasTotal(txMeta.txParams.gas, txMeta.txParams.gasPrice)
const preTxBalanceLessGasCost = subtractCurrencies(txMeta.preTxBalance, gasCost, {
aBase: 16,
bBase: 16,
toNumericBase: 'hex',
})
const ethReceived = subtractCurrencies(txMeta.postTxBalance, preTxBalanceLessGasCost, {
aBase: 16, aBase: 16,
bBase: 16, bBase: 16,
fromDenomination: 'WEI', fromDenomination: 'WEI',