Here is an article on the design of a hexadecimal salary for an agreed transaction:
Construction of HEX useful load for interaction with contract
When sophisticated intelligent contracts, it is an AssCenter to ensure that your application is the right data to them. A well -constructed payment is the cross -predicting the execution and debugging of your application.
In this article, we will study how to design Hex Pay Surrstrow JavaScript, which may be on a contract to retrieve Web3.js or other library.
University of payable data load **
The payload of the shrinkage data consists of three in which the compounds:
- ABI contract: ABI) (ABI) binary interface (ABI) is out of control of signatures and parameters.
- Payable data load
: Access to the execution of the act of accounting data to be connected.
- Go Limits : Gas Restriction that determines the maximum Avalilaable amon for transaction.
Construction of the payload **
To construct a hexadecimal payload, we will use the following steps:
- Copy of Chrines from the ABI Treaty
: Load Abi Philosia or URL of the Contract.
- Pair of the payload of data : Creating authentic objects are the actual data that needs to be contracts.
- Series the payload of data : transform the analyzed data, paying data into a hexadecist, which can be used in Websocets or other protocols.
Here is a development of development:
`javacript
// Import required libraries
CONST Web3 = Requirement ('Web3');
CONST abi = requirement ('./ Contractabi.json'); // Loading a contract abi
// Create a new web3 copy
CONST Web3 = New Web3 (Window.Thereum);
// Determine the payload of data (example)
Let datapayload = {
// Function Parameters and Return Type
'Function': 'myfunction',
"Entrances":
{Name: 'Param1', Type: 'String'},
{Name: 'Param2', Type: 'Number'}
],
'Name': 'myfunction',
“Outputs”: [],
“Statemutabity”: 'View',
"Virouri": []
};
// Animally Payable Cargo of Data
datapayload = json.pars (json.string (datapayload))); // deep cloning of the object
// serialize the data paying at hexadecimal string
Let hexdata = '';
web3.eth.abi.encodeabi (abobi, datapayload) .the ((abobabytes) => {{{{{{{{{{{{{{{{{{{{{{{{{{{{{
hexdata = abibytes.Tostring ('hex');
}). Catch ((error) => {
Console.error (error);
});
Console.log (hex useful load: $ {hedata});
re
Example use
In this we will use the MYCONTRACT ETSS.JS contract. Web3 and ABI's load loads.
javacript
CONST mycontract = Wait Web3.ETH.CONTRACT (ABBI);
re
They, WES, determine the data payment object:
javacript
Let datapayload = {
Function: 'MyFunction',
Inputs:
{Name: 'Param1', Type: 'String'},
{Name: 'Param2', Type: 'Number'}
],
Name: "MyFunction",
Outputs: [],
Statemutabity: "Review",
Virtuals: []
};
re
Then, west and serialize the data:
javacript
Let hexdata = web3.eth.abi.encodeabi (obi, datapayload) .the ((abobibytes) = >>
// ...
}). Catch ((error) => {
Console.error (error);
});
` re
Finally, we register the console responsibilities.
Conclusion
Consultation of a hexadecimal salary for consideration requires the necessary consideration of the vehicle from ABI, the useful load and the limits of gas. Following these steps and examples, you will be well equipped for the construction of stable and effective applications that are in external smart contracts. Recovery to master the documentation for your special libraries and free to provide recovery even the best of the best practices.
