L
L
Loopring Dev Docs
Search…
⌃K

Pay payee updateAccount fee

Payer can pay some tokens to the payee for the first updateAccount fee when transferring, including ERC20 transfer and NFT transfer.
Set payPayeeUpdateAccount as true in ERC20 transfer and NFT transfer can pay the payee updateAccount fee.

1 Checking whether the payer can pay the payee updateAccount fee

Get the payee account info via api/v3/account, if the response is account not found, or nonce is 0 and tags do not contain "FirstUpdateAccountPaid", the payer can pay the updateAccountFee
Below are some examples that the payer can pay the updateAccount fee for the payee

1.1 Account not found

https://uat2.loopring.io//api/v3/account?owner=0x60d2D76ed6E07a9F46EEe7d444257148E08B7bbb
respone:
{"resultInfo":{"code":101002,"message":"account not found"}}

1.2 Account nonce is 0 and tag does not contain FirstUpdateAccountPaid

https://uat2.loopring.io//api/v3/account?owner=0x1111111111111111111111111111111111111111
respone:
{
"accountId": 10500,
"owner": "0x1111111111111111111111111111111111111111",
"frozen": false,
"publicKey": {
"x": "",
"y": ""
},
"tags": "",
"nonce": 0,
"keyNonce": 0,
"keySeed": ""
}

2 ERC20 transfer

2.1 Get fee

transfer: requestType is 15 (TRANSFER_AND_UPDATE_ACCOUNT)
header:
X-API-KEY = bEef7a3Nzk7lgaHm85E0O1JO5ufu0iQ96p3bCmrsZz8TLGG83jTpPDYwcjUC0vlF
request:
https://uat2.loopring.io/api/v3/user/offchainFee?accountId=11329&requestType=15
response:
{
"gasPrice": "2194508101",
"fees": [{
"token": "ETH",
"fee": "1920000000000",
"discount": 1
}, {
"token": "LRC",
"fee": "4770000000000000",
"discount": 0.8
}, {
"token": "USDT",
"fee": "2190",
"discount": 0.8
}, {
"token": "DAI",
"fee": "2730000000000000",
"discount": 1
}]
}

2.2 get storageID

header:
X-API-KEY = bEef7a3Nzk7lgaHm85E0O1JO5ufu0iQ96p3bCmrsZz8TLGG83jTpPDYwcjUC0vlF
request:
https://uat2.loopring.io/api/v3/storageId?accountId=11329&sellTokenId=0
response:
{
"orderId": 0,
"offchainId": 1
}

2.3 submit transfer

storageId: the response in get storageID
maxFee: the response in get fee
payeeId: set to 0 is ok
https://uat2.loopring.io/api/v3/transfer
header:
X-API-KEY = bEef7a3Nzk7lgaHm85E0O1JO5ufu0iQ96p3bCmrsZz8TLGG83jTpPDYwcjUC0vlF
X-API-SIG = 0xf4f902bffcdc2e640efe8f86ef970b65bea4ad1312e8ab33b200852d87a0fd881a584e201b52d768f333eb39b084ccde42dfe110fb683b81319837c6e92fa2691c03
request:
{
"ecdsaSignature": "0x09975137d489dcc8616b90b3ba4ea81b8f2eb6d93324255f38f077bee11b568960997054b31ac6b33f4609ebed72fa85808b8928ce6be42aa98d83da938859ad1c03",
"eddsaSignature": "0x14e9d6ba841634810ef8c893446eae514ef0e7443ec2db9ca6d4347eb82f586c196d9dabb3f72afb2ff1e8580ce35e6674dbcc42ed40cd908846e8aef009b75b0577e7a9c0e107ad3dfa4bd180b720a19be6e56fe64206624a531d16ea909b90",
"exchange": "0x2e76EBd1c7c0C8e7c2B875b6d505a260C525d25e",
"hashApproved": "0x1876c9f920fa78a91a56755d845c33964111d6f932767cf71f47efd87ef176a8",
"maxFee": {
"volume": "2190",
"tokenId": 2
},
"memo": "",
"payPayeeUpdateAccount": true,
"payeeAddr": "0xbb6924b24ba5c6ece81f056cf54e5d720846c188",
"payeeId": 0,
"payerAddr": "0x53f879debad6d97371bfd45875a2ec689d6af798",
"payerId": 11554,
"storageId": 17,
"token": {
"volume": "1000000",
"tokenId": 2
},
"validUntil": 1646747756
}
response:
{
"hash": "0x099301b1acb2634f1ea3f15e14ab078a054a1dee69c60b2f60ce7350eccd217b",
"status": "processing",
"isIdempotent": false
}

3 NFT transfer

3.1 Get fee

transfer: requestType is 19
header:
X-API-KEY = bEef7a3Nzk7lgaHm85E0O1JO5ufu0iQ96p3bCmrsZz8TLGG83jTpPDYwcjUC0vlF
request:
https://uat2.loopring.io/api/v3/user/nft/offchainFee?accountId=11329&requestType=19&tokenSymbol=0x0000000000000000000000000000000000000000&amount=2000000000000
response:
{
"gasPrice": "1500000007",
"fees": [{
"token": "ETH",
"fee": "25100000000000",
"discount": 1
}, {
"token": "LRC",
"fee": "146800000000000000",
"discount": 1
}, {
"token": "USDT",
"fee": "105300",
"discount": 1
}, {
"token": "DAI",
"fee": "105300000000000000",
"discount": 1
}]
}

3.2 get storageID

header:
X-API-KEY = bEef7a3Nzk7lgaHm85E0O1JO5ufu0iQ96p3bCmrsZz8TLGG83jTpPDYwcjUC0vlF
request:
https://uat2.loopring.io/api/v3/storageId?accountId=11329&sellTokenId=0
response:
{
"orderId": 0,
"offchainId": 1
}

3.3 submit nft transfer

request:
{
exchange: '0x2e76EBd1c7c0C8e7c2B875b6d505a260C525d25e',
fromAccountId: 11120,
fromAddress: '0x25B51D4c01c974f8f725be5c8ca5ccF5537f3e85',
toAccountId: 0,
toAddress: '0x35405E1349658BcA12810d0f879Bf6c5d89B512C',
token: {
tokenId: 32773,
nftData: '0x012b2fe4dd01019bbe456379ca4c0c174064f7fa321d42ef9373cd58dda92fbc',
amount: '1'
},
maxFee: { tokenId: 0, amount: '25100000000000' },
storageId: 17,
validUntil: 1667396982,
payPayeeUpdateAccount: true
}
response:
{
hash: '0x1df910bc73f2e90d71fdcd8fc1301c70184c62d866cb2e56871db6d16af838f9',
raw_data: {
hash: '0x1df910bc73f2e90d71fdcd8fc1301c70184c62d866cb2e56871db6d16af838f9',
status: 'processing',
isIdempotent: false
}
}