utils#getRouterContract TypeScript Examples
The following examples show how to use
utils#getRouterContract.
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Example #1
| Source File: index.tsx From goose-frontend-amm with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const oneCurrencyIsWETH = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsETH = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsETH ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsETH ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsETH ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsETH ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsETH ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<Italic fontSize={12} textAlign="left" padding="8px 0 0 0 ">
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</Italic>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'ETH'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={noLiquidity ? 'You are creating a pool' : 'You will receive'}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>You are the first liquidity provider.</UIKitText>
<UIKitText>The ratio of tokens you add will set the price of this pool.</UIKitText>
<UIKitText>Once you are happy with the rate click supply to review.</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity ? 'Initial prices and pool share' : 'Prices and pool share'}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton fullWidth />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
fullWidth
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWETH} pair={pair} />
</AutoColumn>
) : null}
</>
)
}
Example #2
| Source File: index.tsx From mozartfinance-swap-interface with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const TranslateString = useI18n()
const oneCurrencyIsWBNB = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsBNB = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsBNB ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsBNB ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsBNB ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsBNB ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsBNB ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<UIKitText small textAlign="left" padding="8px 0 0 0 " style={{ fontStyle: 'italic' }}>
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</UIKitText>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'BNB'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={
noLiquidity
? TranslateString(1154, 'You are creating a pool')
: TranslateString(1156, 'You will receive')
}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>{TranslateString(1158, 'You are the first liquidity provider.')}</UIKitText>
<UIKitText>
{TranslateString(1160, 'The ratio of tokens you add will set the price of this pool.')}
</UIKitText>
<UIKitText>
{TranslateString(1162, 'Once you are happy with the rate click supply to review.')}
</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity
? TranslateString(1164, 'Initial prices and pool share')
: TranslateString(1166, 'Prices and pool share')}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton width="100%" />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
width="100%"
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWBNB} pair={pair} />
</AutoColumn>
) : null}
</>
)
}
Example #3
| Source File: index.tsx From pancake-swap-exchange-testnet with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const TranslateString = useI18n()
const oneCurrencyIsWBNB = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsBNB = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsBNB ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsBNB ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsBNB ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsBNB ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsBNB ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<UIKitText small textAlign="left" padding="8px 0 0 0 " style={{ fontStyle: 'italic' }}>
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</UIKitText>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'BNB'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<Container>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={
noLiquidity
? TranslateString(1154, 'You are creating a pool')
: TranslateString(1156, 'You will receive')
}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>{TranslateString(1158, 'You are the first liquidity provider.')}</UIKitText>
<UIKitText>
{TranslateString(1160, 'The ratio of tokens you add will set the price of this pool.')}
</UIKitText>
<UIKitText>
{TranslateString(1162, 'Once you are happy with the rate click supply to review.')}
</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity
? TranslateString(1164, 'Initial prices and pool share')
: TranslateString(1166, 'Prices and pool share')}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton width="100%" />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
width="100%"
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWBNB} pair={pair} />
</AutoColumn>
) : null}
</Container>
)
}
Example #4
| Source File: index.tsx From pancake-swap-testnet with MIT License | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const TranslateString = useI18n()
const oneCurrencyIsWBNB = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsBNB = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsBNB ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsBNB ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsBNB ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsBNB ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsBNB ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<UIKitText small textAlign="left" padding="8px 0 0 0 " style={{ fontStyle: 'italic' }}>
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</UIKitText>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'BNB'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={
noLiquidity
? TranslateString(1154, 'You are creating a pool')
: TranslateString(1156, 'You will receive')
}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>{TranslateString(1158, 'You are the first liquidity provider.')}</UIKitText>
<UIKitText>
{TranslateString(1160, 'The ratio of tokens you add will set the price of this pool.')}
</UIKitText>
<UIKitText>
{TranslateString(1162, 'Once you are happy with the rate click supply to review.')}
</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity
? TranslateString(1164, 'Initial prices and pool share')
: TranslateString(1166, 'Prices and pool share')}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton width="100%" />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
width="100%"
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWBNB} pair={pair} />
</AutoColumn>
) : null}
</>
)
}
Example #5
| Source File: index.tsx From pancake-swap-interface-v1 with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const TranslateString = useI18n()
const oneCurrencyIsWBNB = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsBNB = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsBNB ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsBNB ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsBNB ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsBNB ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsBNB ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<UIKitText small textAlign="left" padding="8px 0 0 0 " style={{ fontStyle: 'italic' }}>
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</UIKitText>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'BNB'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<Container>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={
noLiquidity
? TranslateString(1154, 'You are creating a pool')
: TranslateString(1156, 'You will receive')
}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>{TranslateString(1158, 'You are the first liquidity provider.')}</UIKitText>
<UIKitText>
{TranslateString(1160, 'The ratio of tokens you add will set the price of this pool.')}
</UIKitText>
<UIKitText>
{TranslateString(1162, 'Once you are happy with the rate click supply to review.')}
</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity
? TranslateString(1164, 'Initial prices and pool share')
: TranslateString(1166, 'Prices and pool share')}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton width="100%" />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
width="100%"
>
{error ?? "You can't add liquidity on V1"}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWBNB} pair={pair} />
</AutoColumn>
) : null}
</Container>
)
}
Example #6
| Source File: index.tsx From panther-frontend-dex with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const oneCurrencyIsWETH = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsETH = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsETH ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsETH ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsETH ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsETH ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsETH ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
amountsMin[Field.CURRENCY_A].toString(),
amountsMin[Field.CURRENCY_B].toString(),
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<Italic fontSize={12} textAlign="left" padding="8px 0 0 0 ">
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</Italic>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'ETH'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={noLiquidity ? 'You are creating a pool' : 'You will receive'}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>You are the first liquidity provider.</UIKitText>
<UIKitText>The ratio of tokens you add will set the price of this pool.</UIKitText>
<UIKitText>Once you are happy with the rate click supply to review.</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity ? 'Initial prices and pool share' : 'Prices and pool share'}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton fullWidth />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
fullWidth
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ maxWidth: '436px', width: '100%', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWETH} pair={pair} />
</AutoColumn>
) : null}
</>
)
}
Example #7
| Source File: index.tsx From pancakeswap-testnet with GNU General Public License v3.0 | 4 votes |
|
export default function AddLiquidity({
match: {
params: { currencyIdA, currencyIdB },
},
history,
}: RouteComponentProps<{ currencyIdA?: string; currencyIdB?: string }>) {
const { account, chainId, library } = useActiveWeb3React()
const currencyA = useCurrency(currencyIdA)
const currencyB = useCurrency(currencyIdB)
const TranslateString = useI18n()
const oneCurrencyIsWBNB = Boolean(
chainId &&
((currencyA && currencyEquals(currencyA, WETH[chainId])) ||
(currencyB && currencyEquals(currencyB, WETH[chainId])))
)
const expertMode = useIsExpertMode()
// mint state
const { independentField, typedValue, otherTypedValue } = useMintState()
const {
dependentField,
currencies,
pair,
pairState,
currencyBalances,
parsedAmounts,
price,
noLiquidity,
liquidityMinted,
poolTokenPercentage,
error,
} = useDerivedMintInfo(currencyA ?? undefined, currencyB ?? undefined)
const { onFieldAInput, onFieldBInput } = useMintActionHandlers(noLiquidity)
const isValid = !error
// modal and loading
const [showConfirm, setShowConfirm] = useState<boolean>(false)
const [attemptingTxn, setAttemptingTxn] = useState<boolean>(false) // clicked confirm
// txn values
const [deadline] = useUserDeadline() // custom from users settings
const [allowedSlippage] = useUserSlippageTolerance() // custom from users
const [txHash, setTxHash] = useState<string>('')
// get formatted amounts
const formattedAmounts = {
[independentField]: typedValue,
[dependentField]: noLiquidity ? otherTypedValue : parsedAmounts[dependentField]?.toSignificant(6) ?? '',
}
// get the max amounts user can add
const maxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmountSpend(currencyBalances[field]),
}
},
{}
)
const atMaxAmounts: { [field in Field]?: TokenAmount } = [Field.CURRENCY_A, Field.CURRENCY_B].reduce(
(accumulator, field) => {
return {
...accumulator,
[field]: maxAmounts[field]?.equalTo(parsedAmounts[field] ?? '0'),
}
},
{}
)
// check whether the user has approved the router on the tokens
const [approvalA, approveACallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_A], ROUTER_ADDRESS)
const [approvalB, approveBCallback] = useApproveCallback(parsedAmounts[Field.CURRENCY_B], ROUTER_ADDRESS)
const addTransaction = useTransactionAdder()
async function onAdd() {
if (!chainId || !library || !account) return
const router = getRouterContract(chainId, library, account)
const { [Field.CURRENCY_A]: parsedAmountA, [Field.CURRENCY_B]: parsedAmountB } = parsedAmounts
if (!parsedAmountA || !parsedAmountB || !currencyA || !currencyB) {
return
}
const amountsMin = {
[Field.CURRENCY_A]: calculateSlippageAmount(parsedAmountA, noLiquidity ? 0 : allowedSlippage)[0],
[Field.CURRENCY_B]: calculateSlippageAmount(parsedAmountB, noLiquidity ? 0 : allowedSlippage)[0],
}
const deadlineFromNow = Math.ceil(Date.now() / 1000) + deadline
let estimate
let method: (...args: any) => Promise<TransactionResponse>
let args: Array<string | string[] | number>
let value: BigNumber | null
if (currencyA === ETHER || currencyB === ETHER) {
const tokenBIsBNB = currencyB === ETHER
estimate = router.estimateGas.addLiquidityETH
method = router.addLiquidityETH
args = [
wrappedCurrency(tokenBIsBNB ? currencyA : currencyB, chainId)?.address ?? '', // token
(tokenBIsBNB ? parsedAmountA : parsedAmountB).raw.toString(), // token desired
amountsMin[tokenBIsBNB ? Field.CURRENCY_A : Field.CURRENCY_B].toString(), // token min
amountsMin[tokenBIsBNB ? Field.CURRENCY_B : Field.CURRENCY_A].toString(), // eth min
account,
deadlineFromNow,
]
value = BigNumber.from((tokenBIsBNB ? parsedAmountB : parsedAmountA).raw.toString())
} else {
estimate = router.estimateGas.addLiquidity
method = router.addLiquidity
args = [
wrappedCurrency(currencyA, chainId)?.address ?? '',
wrappedCurrency(currencyB, chainId)?.address ?? '',
parsedAmountA.raw.toString(),
parsedAmountB.raw.toString(),
"0",
"0",
account,
deadlineFromNow,
]
value = null
}
setAttemptingTxn(true)
// const aa = await estimate(...args, value ? { value } : {})
await estimate(...args, value ? { value } : {})
.then((estimatedGasLimit) =>
method(...args, {
...(value ? { value } : {}),
gasLimit: calculateGasMargin(estimatedGasLimit),
}).then((response) => {
setAttemptingTxn(false)
addTransaction(response, {
summary: `Add ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(3)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(3)} ${currencies[Field.CURRENCY_B]?.symbol}`,
})
setTxHash(response.hash)
})
)
.catch((e) => {
setAttemptingTxn(false)
// we only care if the error is something _other_ than the user rejected the tx
if (e?.code !== 4001) {
console.error(e)
}
})
}
const modalHeader = () => {
return noLiquidity ? (
<AutoColumn gap="20px">
<LightCard mt="20px" borderRadius="20px">
<RowFlat>
<UIKitText fontSize="48px" mr="8px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol}`}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
</LightCard>
</AutoColumn>
) : (
<AutoColumn gap="20px">
<RowFlat style={{ marginTop: '20px' }}>
<UIKitText fontSize="48px" mr="8px">
{liquidityMinted?.toSignificant(6)}
</UIKitText>
<DoubleCurrencyLogo
currency0={currencies[Field.CURRENCY_A]}
currency1={currencies[Field.CURRENCY_B]}
size={30}
/>
</RowFlat>
<Row>
<UIKitText fontSize="24px">
{`${currencies[Field.CURRENCY_A]?.symbol}/${currencies[Field.CURRENCY_B]?.symbol} Pool Tokens`}
</UIKitText>
</Row>
<UIKitText small textAlign="left" padding="8px 0 0 0 " style={{ fontStyle: 'italic' }}>
{`Output is estimated. If the price changes by more than ${
allowedSlippage / 100
}% your transaction will revert.`}
</UIKitText>
</AutoColumn>
)
}
const modalBottom = () => {
return (
<ConfirmAddModalBottom
price={price}
currencies={currencies}
parsedAmounts={parsedAmounts}
noLiquidity={noLiquidity}
onAdd={onAdd}
poolTokenPercentage={poolTokenPercentage}
/>
)
}
const pendingText = `Supplying ${parsedAmounts[Field.CURRENCY_A]?.toSignificant(6)} ${
currencies[Field.CURRENCY_A]?.symbol
} and ${parsedAmounts[Field.CURRENCY_B]?.toSignificant(6)} ${currencies[Field.CURRENCY_B]?.symbol}`
const handleCurrencyASelect = useCallback(
(currA: Currency) => {
const newCurrencyIdA = currencyId(currA)
if (newCurrencyIdA === currencyIdB) {
history.push(`/add/${currencyIdB}/${currencyIdA}`)
} else {
history.push(`/add/${newCurrencyIdA}/${currencyIdB}`)
}
},
[currencyIdB, history, currencyIdA]
)
const handleCurrencyBSelect = useCallback(
(currB: Currency) => {
const newCurrencyIdB = currencyId(currB)
if (currencyIdA === newCurrencyIdB) {
if (currencyIdB) {
history.push(`/add/${currencyIdB}/${newCurrencyIdB}`)
} else {
history.push(`/add/${newCurrencyIdB}`)
}
} else {
history.push(`/add/${currencyIdA || 'BNB'}/${newCurrencyIdB}`)
}
},
[currencyIdA, history, currencyIdB]
)
const handleDismissConfirmation = useCallback(() => {
setShowConfirm(false)
// if there was a tx hash, we want to clear the input
if (txHash) {
onFieldAInput('')
}
setTxHash('')
}, [onFieldAInput, txHash])
return (
<>
<CardNav activeIndex={1} />
<AppBody>
<AddRemoveTabs adding />
<Wrapper>
<TransactionConfirmationModal
isOpen={showConfirm}
onDismiss={handleDismissConfirmation}
attemptingTxn={attemptingTxn}
hash={txHash}
content={() => (
<ConfirmationModalContent
title={
noLiquidity
? TranslateString(1154, 'You are creating a pool')
: TranslateString(1156, 'You will receive')
}
onDismiss={handleDismissConfirmation}
topContent={modalHeader}
bottomContent={modalBottom}
/>
)}
pendingText={pendingText}
/>
<CardBody>
<AutoColumn gap="20px">
{noLiquidity && (
<ColumnCenter>
<Pane>
<AutoColumn gap="12px">
<UIKitText>{TranslateString(1158, 'You are the first liquidity provider.')}</UIKitText>
<UIKitText>
{TranslateString(1160, 'The ratio of tokens you add will set the price of this pool.')}
</UIKitText>
<UIKitText>
{TranslateString(1162, 'Once you are happy with the rate click supply to review.')}
</UIKitText>
</AutoColumn>
</Pane>
</ColumnCenter>
)}
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_A]}
onUserInput={onFieldAInput}
onMax={() => {
onFieldAInput(maxAmounts[Field.CURRENCY_A]?.toExact() ?? '')
}}
onCurrencySelect={handleCurrencyASelect}
showMaxButton={!atMaxAmounts[Field.CURRENCY_A]}
currency={currencies[Field.CURRENCY_A]}
id="add-liquidity-input-tokena"
showCommonBases={false}
/>
<ColumnCenter>
<AddIcon color="textSubtle" />
</ColumnCenter>
<CurrencyInputPanel
value={formattedAmounts[Field.CURRENCY_B]}
onUserInput={onFieldBInput}
onCurrencySelect={handleCurrencyBSelect}
onMax={() => {
onFieldBInput(maxAmounts[Field.CURRENCY_B]?.toExact() ?? '')
}}
showMaxButton={!atMaxAmounts[Field.CURRENCY_B]}
currency={currencies[Field.CURRENCY_B]}
id="add-liquidity-input-tokenb"
showCommonBases={false}
/>
{currencies[Field.CURRENCY_A] && currencies[Field.CURRENCY_B] && pairState !== PairState.INVALID && (
<div>
<UIKitText
style={{ textTransform: 'uppercase', fontWeight: 600 }}
color="textSubtle"
fontSize="12px"
mb="2px"
>
{noLiquidity
? TranslateString(1164, 'Initial prices and pool share')
: TranslateString(1166, 'Prices and pool share')}
</UIKitText>
<Pane>
<PoolPriceBar
currencies={currencies}
poolTokenPercentage={poolTokenPercentage}
noLiquidity={noLiquidity}
price={price}
/>
</Pane>
</div>
)}
{!account ? (
<ConnectWalletButton width="100%" />
) : (
<AutoColumn gap="md">
{(approvalA === ApprovalState.NOT_APPROVED ||
approvalA === ApprovalState.PENDING ||
approvalB === ApprovalState.NOT_APPROVED ||
approvalB === ApprovalState.PENDING) &&
isValid && (
<RowBetween>
{approvalA !== ApprovalState.APPROVED && (
<Button
onClick={approveACallback}
disabled={approvalA === ApprovalState.PENDING}
style={{ width: approvalB !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalA === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_A]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_A]?.symbol}`
)}
</Button>
)}
{approvalB !== ApprovalState.APPROVED && (
<Button
onClick={approveBCallback}
disabled={approvalB === ApprovalState.PENDING}
style={{ width: approvalA !== ApprovalState.APPROVED ? '48%' : '100%' }}
>
{approvalB === ApprovalState.PENDING ? (
<Dots>Approving {currencies[Field.CURRENCY_B]?.symbol}</Dots>
) : (
`Approve ${currencies[Field.CURRENCY_B]?.symbol}`
)}
</Button>
)}
</RowBetween>
)}
<Button
onClick={() => {
if (expertMode) {
onAdd()
} else {
setShowConfirm(true)
}
}}
disabled={!isValid || approvalA !== ApprovalState.APPROVED || approvalB !== ApprovalState.APPROVED}
variant={
!isValid && !!parsedAmounts[Field.CURRENCY_A] && !!parsedAmounts[Field.CURRENCY_B]
? 'danger'
: 'primary'
}
width="100%"
>
{error ?? 'Supply'}
</Button>
</AutoColumn>
)}
</AutoColumn>
</CardBody>
</Wrapper>
</AppBody>
{pair && !noLiquidity && pairState !== PairState.INVALID ? (
<AutoColumn style={{ minWidth: '20rem', marginTop: '1rem' }}>
<MinimalPositionCard showUnwrapped={oneCurrencyIsWBNB} pair={pair} />
</AutoColumn>
) : null}
</>
)
}
