tx · 8jgseVAPKgesxBqQ75AK1wtmESPTQKW11Sr3pks8mPjX

3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA:  -0.01000000 Waves

2022.02.15 12:16 [1924552] smart account 3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "8jgseVAPKgesxBqQ75AK1wtmESPTQKW11Sr3pks8mPjX",
    "fee": 1000000,
    "feeAssetId": null,
    "timestamp": 1644916622280,
    "version": 2,
    "chainId": 84,
    "sender": "3Mty9tvj2nMt3mudiJFGKqKh8Mai1o8oGCA",
    "senderPublicKey": "D5AsfVE6mgvKZXPLeW3vHDhcVwbypV8qcT64Kmn4UQ3D",
    "proofs": [
        "hToRrY4GpCY87iWXah8xomKY6c5NGpMrSLgmBi3a2wvrBCZeDPabxkjPqZ6ZDnC5KhdjowGYS5PBsQGft2LiZvB"
    ],
    "script": "base64:AAIFAAAAAAAAAAcIAhIDCgECAAAABgAAAAAObG9hbkZlZVBlcmNlbnQJAABpAAAAAgAAAAAAAAAACQAAAAAAAAAAZAAAAAAEVVNETgEAAAAgImQ/Hr5gRukRahMT3KYz/hZ+B/l36bPyFfyZSSowCjcAAAAABVdBVkVTAQAAAAQTq9kzAAAAABtleGNoYW5nZXJVU0ROdG9XYXZlc0FkZHJlc3MJAQAAAAdBZGRyZXNzAAAAAQEAAAAaAVRlO0iZAZuQgWXZn5GJMYy9wBUgW1m44o4AAAAAG2V4Y2hhbmdlcldhdmVzVG9VU0ROQWRkcmVzcwkBAAAAB0FkZHJlc3MAAAABAQAAABoBVN4Pvno4pLzl6yPdHWZAu26THq7fS7YWLAAAAAANbG9hbmVyQWRkcmVzcwkBAAAAB0FkZHJlc3MAAAABAQAAABoBVDdtURHBzP3NwchbOzttKqJMBcxR9RiMgwAAAAEAAAABaQEAAAAFdHJhZGUAAAABAAAACGJvcnJvd2VyBAAAAApsb2FuQW1vdW50AwkAAAAAAAACCAkAAZEAAAACCAUAAAABaQAAAAhwYXltZW50cwAAAAAAAAAAAAAAAAdhc3NldElkBQAAAARVU0ROCAkAAZEAAAACCAUAAAABaQAAAAhwYXltZW50cwAAAAAAAAAAAAAAAAZhbW91bnQJAAACAAAAAQIAAAAYVW5leHBlY3RlZCBwYXltZW50IGFzc2V0BAAAABFzdGFydEJhbGFuY2VXQVZFUwkAA/AAAAACBQAAAAR0aGlzBQAAAAVXQVZFUwMJAAAAAAAAAgUAAAARc3RhcnRCYWxhbmNlV0FWRVMFAAAAEXN0YXJ0QmFsYW5jZVdBVkVTBAAAAAJyMQkAA/wAAAAEBQAAABtleGNoYW5nZXJVU0ROdG9XYXZlc0FkZHJlc3MCAAAAE2V4Y2hhbmdlVVNETnRvV0FWRVMFAAAAA25pbAkABEwAAAACCQEAAAAPQXR0YWNoZWRQYXltZW50AAAAAgUAAAAEVVNETgUAAAAKbG9hbkFtb3VudAUAAAADbmlsAwkAAAAAAAACBQAAAAJyMQUAAAACcjEEAAAACWRpZmZXQVZFUwkAAGUAAAACCQAD8AAAAAIFAAAABHRoaXMFAAAABVdBVkVTBQAAABFzdGFydEJhbGFuY2VXQVZFUwMJAAAAAAAAAgUAAAAJZGlmZldBVkVTBQAAAAlkaWZmV0FWRVMEAAAAAnIyCQAD/AAAAAQFAAAAG2V4Y2hhbmdlcldhdmVzVG9VU0ROQWRkcmVzcwIAAAATZXhjaGFuZ2VXQVZFU3RvVVNETgUAAAADbmlsCQAETAAAAAIJAQAAAA9BdHRhY2hlZFBheW1lbnQAAAACBQAAAAVXQVZFUwUAAAAJZGlmZldBVkVTBQAAAANuaWwDCQAAAAAAAAIFAAAAAnIyBQAAAAJyMgQAAAAEZGVidAkAAGsAAAADBQAAAApsb2FuQW1vdW50CQAAZAAAAAIAAAAAAAAAAGQFAAAADmxvYW5GZWVQZXJjZW50AAAAAAAAAABkBAAAAAZwcm9maXQJAABlAAAAAgkAA/AAAAACBQAAAAR0aGlzBQAAAARVU0ROBQAAAARkZWJ0CQAETAAAAAIJAQAAAA5TY3JpcHRUcmFuc2ZlcgAAAAMJAQAAAAdBZGRyZXNzAAAAAQUAAAAIYm9ycm93ZXIFAAAABnByb2ZpdAUAAAAEVVNETgkABEwAAAACCQEAAAAOU2NyaXB0VHJhbnNmZXIAAAADBQAAAA1sb2FuZXJBZGRyZXNzBQAAAARkZWJ0BQAAAARVU0ROBQAAAANuaWwJAAACAAAAAQIAAAAkU3RyaWN0IHZhbHVlIGlzIG5vdCBlcXVhbCB0byBpdHNlbGYuCQAAAgAAAAECAAAAJFN0cmljdCB2YWx1ZSBpcyBub3QgZXF1YWwgdG8gaXRzZWxmLgkAAAIAAAABAgAAACRTdHJpY3QgdmFsdWUgaXMgbm90IGVxdWFsIHRvIGl0c2VsZi4JAAACAAAAAQIAAAAkU3RyaWN0IHZhbHVlIGlzIG5vdCBlcXVhbCB0byBpdHNlbGYuAAAAADUSNVE=",
    "height": 1924552,
    "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 loanFeePercent = (9 / 100)
5
+
4
6
 
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
5
7
 
6
-
let loanFeePercent = (9 / 100)
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')
7
15
 
8
16
 
@Callable(i)
9
-
func flashloan (amount,callback,borrower) = {
10
-
    let startBalance = assetBalance(this, USDN)
11
-
    if ((startBalance == startBalance))
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))
12
23
 
        then {
13
-
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
14
-
            if ((r == r))
24
+
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
25
+
            if ((r1 == r1))
15
26
 
                then {
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
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.")
21
40
 
                    }
22
41
 
                else throw("Strict value is not equal to itself.")
23
42
 
            }
Full: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 5 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
+
let loanFeePercent = (9 / 100)
5
+
4
6
 
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
5
7
 
6
-
let loanFeePercent = (9 / 100)
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')
7
15
 
8
16
 
@Callable(i)
9
-
func flashloan (amount,callback,borrower) = {
10
-
    let startBalance = assetBalance(this, USDN)
11
-
    if ((startBalance == startBalance))
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))
12
23
 
        then {
13
-
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
14
-
            if ((r == r))
24
+
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
25
+
            if ((r1 == r1))
15
26
 
                then {
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
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.")
21
40
 
                    }
22
41
 
                else throw("Strict value is not equal to itself.")
23
42
 
            }
24
43
 
        else throw("Strict value is not equal to itself.")
25
44
 
    }
26
45
 
27
46
 

github/deemru/w8io/026f985 
32.26 ms ◑