EIP-681 : Transaction/Payment Request

EIP681 is a URI standard for requesting an Ethereum-based coin/token transaction. D’CENT App supports EIP681 using dynamic links. (Reference: EIP 681 standard document)
eip681 dynamic link format
The eip681 dynamic link is configured in the following format.
https://link.dcentwallet.com/MyWallet/eip681/{eip681_request}
eip681_request
eip681_request is configured in the following standard format.
request = schema_prefix  target_address [ "@" chain_id] [ "/" funtion_name  ] [ "?" parameters]
schema_prefix  
It is expressed as ‘ethereum:’ or ‘pay-’ and can be omitted in case of coin transfer. 
* (Only ethereum (evm) series supported by D’CENT App are supported. (Reference: D’CENT Wallet Supported Coin List - Supported Cryptocurrency List (dcentwallet.com))
target_address 
The beneficiary address (to address) where the transfer will be made to.
chain_id
The value of the chain id. (Reference: chainlist site) If the chain id value is not specified, the chain id value will be set to 1 (ethereum).
funtion_name*
If target_address is a contract address, function_name can be configured. (Reference: function_name list)
parameters
It is composed in the form of “key”=”value”, and the information is different depending on the function_name. If there is no function_name, the amount to be transferred must be entered in the form of ‘value= amount to be sent (wai unit)’.
​
(* It can exist only when target_address is a contract address.)
Example) 
When sending 5FAU from Ropsten testnet (chain id:3) the FAU token (contract address: 0xFab46E002BbF0b4509813474841E0716E6730136) to an address 0xA93433E9A645e4C9d9557c2E38939Aa79e18107
function_name list
The function_name currently supported by the D’CENT App is as follows.
We plan to expand the supported function_name list in the future.
transfer  
Executes transfer(address,uint256), a function for erc20 token transfer 
ie) transfer?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=1e-2
transferfrom  
Executes transferfrom(address,address,unit256), a function for erc20 token transfer 
ie) transferfrom?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&address=0x19f64674d8a5b4e652319f5e239efd3bc969a1fe&uint256=1e-2
approve  
Executes approve(address,uint256), a function for requesting erc20 permission 
ie) approve?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=1e-2
Example
The following is an example of dynamic link according to transaction type.
(D’CENT App execution flow that performs each transaction varies depending on the presence or absence of a network account.)
[Coin Transfer]
Transfer polygon 0.5MATIC to the address 0xA93433E9A645e4C9d9557c2E38939Aa79e18107c
dynamic link
https://link.dcentwallet.com/MyWallet/eip681/0xA93433E9A645e4C9d9557c2E38939Aa79e18107c@137?value=5e17​
D’CENT App process
When polygon account exists,
When polygon account does not exist,
When two or more polygon accounts exist,
[Token transfer]
Transfer QUIK(polygon) 0.005QUICK to the address 0xA93433E9A645e4C9d9557c2E38939Aa79e18107c
dynamic link
https://link.dcentwallet.com/MyWallet/eip681/pay-0x831753DD7087CaC61aB5644b308642cc1c33Dc13@137/transfer?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=5e15​
D’CENT App process
When polygon account exists,
When polygon account does not exist,
When two or more polygon accounts exist,
[Token transferfrom]
Transfer QUIK(polygon) 0.005QUICK to the address 0xA93433E9A645e4C9d9557c2E38939Aa79e18107c to another address 0x0xA93433E9A645e4C9d9557c2E38939Aa79e18107c
dynamic link
https://link.dcentwallet.com/MyWallet/eip681/pay-0x831753DD7087CaC61aB5644b308642cc1c33Dc13@137/transferfrom?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&address=0x1e0049783f008a0085193e00003d00cd54003c71&uint256=5e17​
D’CENT App process
When polygon account exists,
When polygon account does not exist,
When two or more polygon accounts exist,
[Token approve]
Approving permission to 0xA93433E9A645e4C9d9557c2E38939Aa79e18107c in the amount of QUIK(polygon) 0.5QUICK
dynamic link
https://link.dcentwallet.com/MyWallet/eip681/pay-0x831753DD7087CaC61aB5644b308642cc1c33Dc13@137/approve?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=5e17​
D’CENT App process
When polygon account exists,
When polygon account does not exist,
When two or more polygon accounts exist,

Last modified 10mo ago

`schema_prefix`	It is expressed as ‘ethereum:’ or ‘pay-’ and can be omitted in case of coin transfer. * (Only ethereum (evm) series supported by D’CENT App are supported. (Reference: D’CENT Wallet Supported Coin List - Supported Cryptocurrency List (dcentwallet.com))
`target_address`	The beneficiary address (to address) where the transfer will be made to.
`chain_id`	The value of the chain id. (Reference: chainlist site) If the chain id value is not specified, the chain id value will be set to 1 (ethereum).
`funtion_name`*	If target_address is a contract address, function_name can be configured. (Reference: function_name list)
`parameters`	It is composed in the form of “key”=”value”, and the information is different depending on the function_name. If there is no function_name, the amount to be transferred must be entered in the form of ‘value= amount to be sent (wai unit)’.
	( It can exist only when* `target_address` is a contract address.)

`transfer`	Executes transfer(address,uint256), a function for erc20 token transfer ie) `transfer?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=1e-2`
`transferfrom`	Executes transferfrom(address,address,unit256), a function for erc20 token transfer ie) `transferfrom?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&address=0x19f64674d8a5b4e652319f5e239efd3bc969a1fe&uint256=1e-2`
`approve`	Executes approve(address,uint256), a function for requesting erc20 permission ie) `approve?address=0xA93433E9A645e4C9d9557c2E38939Aa79e18107c&uint256=1e-2`