tx · D464jY3gKNHcn73ZA1uGyao3JxZEXFjsjaY66355MHJm

3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA:  -0.01000000 Waves

2022.02.15 12:17 [1924553] smart account 3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "D464jY3gKNHcn73ZA1uGyao3JxZEXFjsjaY66355MHJm",
    "fee": 1000000,
    "feeAssetId": null,
    "timestamp": 1644916645892,
    "version": 2,
    "chainId": 84,
    "sender": "3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA",
    "senderPublicKey": "D5AsfVE6mgvKZXPLeW3vHDhcVwbypV8qcT64Kmn4UQ3D",
    "proofs": [
        "4NFhMwG55UVc1YboDYDq3w7PeeN9xTrXaXtPysRVTV4Vn2mMEYr9zbQftzD1b9yTDFGq5qakvpLJR9Bn1WrwxHx1"
    ],
    "script": "base64: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",
    "height": 1924553,
    "applicationStatus": "succeeded",
    "spentComplexity": 0
}

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Diff: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 5 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
+
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
5
+
4
6
 
let loanFeePercent = (9 / 100)
5
7
 
6
-
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
7
-
8
-
let WAVES = base58'WAVES'
9
-
10
-
let exchangerUSDNtoWavesAddress = Address(base58'3My9M3PdtDPdsvHwX4t1epYFJjhLDrQFP49')
11
-
12
-
let exchangerWavesToUSDNAddress = Address(base58'3NAAEeRUgAj7D4pTPGR7n4yPCX2JGF3vUXm')
13
-
14
-
let loanerAddress = Address(base58'3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA')
15
-
16
8
 
@Callable(i)
17
-
func trade (borrower) = {
18
-
    let loanAmount = if ((i.payments[0].assetId == USDN))
19
-
        then i.payments[0].amount
20
-
        else throw("Unexpected payment asset")
21
-
    let startBalanceWAVES = assetBalance(this, WAVES)
22
-
    if ((startBalanceWAVES == startBalanceWAVES))
9
+
func flashloan (amount,callback,borrower) = {
10
+
    let startBalance = assetBalance(this, USDN)
11
+
    if ((startBalance == startBalance))
23
12
 
        then {
24
-
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
25
-
            if ((r1 == r1))
13
+
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
14
+
            if ((r == r))
26
15
 
                then {
27
-
                    let diffWAVES = (assetBalance(this, WAVES) - startBalanceWAVES)
28
-
                    if ((diffWAVES == diffWAVES))
29
-
                        then {
30
-
                            let r2 = invoke(exchangerWavesToUSDNAddress, "exchangeWAVEStoUSDN", nil, [AttachedPayment(WAVES, diffWAVES)])
31
-
                            if ((r2 == r2))
32
-
                                then {
33
-
                                    let debt = fraction(loanAmount, (100 + loanFeePercent), 100)
34
-
                                    let profit = (assetBalance(this, USDN) - debt)
35
-
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(loanerAddress, debt, USDN)]
36
-
                                    }
37
-
                                else throw("Strict value is not equal to itself.")
38
-
                            }
39
-
                        else throw("Strict value is not equal to itself.")
16
+
                    let balanceDiff = (assetBalance(this, USDN) - startBalance)
17
+
                    let profit = fraction(amount, loanFeePercent, 100)
18
+
                    if ((profit > balanceDiff))
19
+
                        then throw(((("Debt not paid, because diff = " + toString(balanceDiff)) + ". Expected diff = ") + toString(profit)))
20
+
                        else nil
40
21
 
                    }
41
22
 
                else throw("Strict value is not equal to itself.")
42
23
 
            }
Full: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 5 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
+
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
5
+
4
6
 
let loanFeePercent = (9 / 100)
5
7
 
6
-
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
7
-
8
-
let WAVES = base58'WAVES'
9
-
10
-
let exchangerUSDNtoWavesAddress = Address(base58'3My9M3PdtDPdsvHwX4t1epYFJjhLDrQFP49')
11
-
12
-
let exchangerWavesToUSDNAddress = Address(base58'3NAAEeRUgAj7D4pTPGR7n4yPCX2JGF3vUXm')
13
-
14
-
let loanerAddress = Address(base58'3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA')
15
-
16
8
 
@Callable(i)
17
-
func trade (borrower) = {
18
-
    let loanAmount = if ((i.payments[0].assetId == USDN))
19
-
        then i.payments[0].amount
20
-
        else throw("Unexpected payment asset")
21
-
    let startBalanceWAVES = assetBalance(this, WAVES)
22
-
    if ((startBalanceWAVES == startBalanceWAVES))
9
+
func flashloan (amount,callback,borrower) = {
10
+
    let startBalance = assetBalance(this, USDN)
11
+
    if ((startBalance == startBalance))
23
12
 
        then {
24
-
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
25
-
            if ((r1 == r1))
13
+
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
14
+
            if ((r == r))
26
15
 
                then {
27
-
                    let diffWAVES = (assetBalance(this, WAVES) - startBalanceWAVES)
28
-
                    if ((diffWAVES == diffWAVES))
29
-
                        then {
30
-
                            let r2 = invoke(exchangerWavesToUSDNAddress, "exchangeWAVEStoUSDN", nil, [AttachedPayment(WAVES, diffWAVES)])
31
-
                            if ((r2 == r2))
32
-
                                then {
33
-
                                    let debt = fraction(loanAmount, (100 + loanFeePercent), 100)
34
-
                                    let profit = (assetBalance(this, USDN) - debt)
35
-
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(loanerAddress, debt, USDN)]
36
-
                                    }
37
-
                                else throw("Strict value is not equal to itself.")
38
-
                            }
39
-
                        else throw("Strict value is not equal to itself.")
16
+
                    let balanceDiff = (assetBalance(this, USDN) - startBalance)
17
+
                    let profit = fraction(amount, loanFeePercent, 100)
18
+
                    if ((profit > balanceDiff))
19
+
                        then throw(((("Debt not paid, because diff = " + toString(balanceDiff)) + ". Expected diff = ") + toString(profit)))
20
+
                        else nil
40
21
 
                    }
41
22
 
                else throw("Strict value is not equal to itself.")
42
23
 
            }
43
24
 
        else throw("Strict value is not equal to itself.")
44
25
 
    }
45
26
 
46
27
 

github/deemru/w8io/169f3d6 
36.18 ms ◑