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ตัวอย่างหนัง Solana: Question Description: Regarding data retrieval and operations on the Solana blockchain, I have the following technical queries requiring assistance:
The full potential of Solana: Solana Data call and unlock operations
As a developer who works with the Solana blockchain, you are probably familiar with the unique functions and advantages. An aspect that can be a challenge is to access data and operations in the Solana network. In this article we will deal with the technical queries on these topics and provide practical code references and solutions that help you to overcome you.
What are data calls and operations in Solana?
In Solana, calling up and processes of data relate to access, manipulated and updated data on the blockchain. This includes the execution of various commands such as “Get”, “Set” and “Delete” in a certain address or a specific contract.
Technical questions:
- How can I call up all transactions from a certain item of the item?
In this query you have to carry out a complex transaction that calls up all transactions from a certain address. You have to:
- Create a transaction with the “Transfer” command to postpone token from the sending account to another account.
- Use the function
txpool.
Here is a sample code snippet:
Solana
Import {pool} from "Solana-Program";
Import {transaction} from '@solana/web3.js';
// Create a transaction that transfers 1 unit token A to account B
Const Tx = new transaction ();
tx.add (
'transfer',
[
['Account1', 1, 'Tokena'],
['Account2', 1, 'tokenb']
]
);
// Call all transactions of Account1 with the function of the Gettransactionfromaddress function
pool.Gettransactionfromaddress (tx.data.address) .then ((transactions) => {
console.log (transactions);
});
- How can I update a certain field in a Solana contract?
This query includes the execution of an “update” command in a contract to change a specific field. You have to:
- Create a transaction with the “Transfer” command to transfer token from one address to another.
- Use the function
txpool.
- ITERATE THE transaction and update the relevant fields in the contract.
Here is a sample code snippet:
Solana
Import {pool} from "Solana-Program";
Import {transaction} from '@solana/web3.js';
// Create a transaction that transfers token from Account1 to another address
Const Tx = New Transaction ();
tx.add (
'transfer',
[
['Account1', 100, 'Tokena'],
['Account2', 50, 'tokenb']
]
);
// Call all transactions of Account1 with the function of the Gettransactionfromaddress function
pool.Gettransactionfromaddress (tx.data.address) .then ((transactions) => {
For (Const transaction of transactions) {
// Update the token amount in the contract
Const contractid = tx.data.account1;
Const Updateetx = New Transaction ();
updatetx.add (
'update',
[
['Contract', contractide, 'amount', transaction.amount],
['Account2', 100, 'Tokena'],
['Account3', 50, 'tokenb']
]
);
// you will receive the updated token amounts
Const updatransactions = Pool.Gettransactionfromaddress (updateetx.data.address) .then ((updates) => {
console.log (updates);
});
}
});
Diploma
In this article we have dealt with some of the technical queries in connection with the access of data and operations on Solana blockchain. By implementing these solutions with practical code references and certain scripts, you can manage common challenges in your development work.
Remember to consult the official documentation of Solana and the API reference from Web3.js in order to obtain further information on the execution of transactions and for interaction with contracts.
Additional resources
- Solana documentation: [ (https: // docs.