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contracts: ERC20 token no longer supports increaseAllowance

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Mark Spanbroek 2025-03-17 16:30:12 +01:00
parent 98866319ce
commit 9b9d0b23fe
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GPG Key ID: FBE3E9548D427C00
1 changed files with 18 additions and 1 deletions
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19
codex/contracts/market.nim
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@ -22,6 +22,7 @@ type
signer: Signer
configuration: MarketplaceConfig
requestCache: LruCache[string, StorageRequest]
allowanceLock: AsyncLock
MarketSubscription = market.Subscription
EventSubscription = ethers.Subscription
@ -75,6 +76,18 @@ template convertEthersError(msg: string = "", body) =
except EthersError as error:
raiseMarketError(error.msgDetail.prefixWith(msg))
template withAllowanceLock*(market: OnChainMarket, body: untyped) =
if market.allowanceLock.isNil:
market.allowanceLock = newAsyncLock()
await market.allowanceLock.acquire()
try:
body
finally:
try:
market.allowanceLock.release()
except AsyncLockError as error:
raise newException(Defect, error.msg, error)
proc approveFunds(
market: OnChainMarket, amount: UInt256
) {.async: (raises: [CancelledError, MarketError]).} =
@ -82,7 +95,11 @@ proc approveFunds(
convertEthersError("Failed to approve funds"):
let tokenAddress = await market.contract.token()
let token = Erc20Token.new(tokenAddress, market.signer)
discard await token.increaseAllowance(market.contract.address(), amount).confirm(1)
let owner = await market.signer.getAddress()
let spender = market.contract.address
market.withAllowanceLock:
let allowance = await token.allowance(owner, spender)
discard await token.approve(spender, allowance + amount).confirm(1)
method getSigner*(
market: OnChainMarket