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Title: Solana: Doubts about a get -action account, not operated on as planned
Introduction
Solana is a popular blockchain platform known for its fast and safe transactions. When creating a program that interacts with the Solana network, it is important to understand how the different functions work. In this article we will examine two important functions in Solana: “Get Transaction Count” and its use with “Slotsubcribe”. We will also discuss certain doubts that we have met when trying out these functions.
You can get the number of the regular slot machine
To get the regular location in Solana, you can use the “Slotsubcribe” function provided by the SDK Solana. Here is an example of how to use it:
`Rost
Use Solana Pogram :: {
Account_info :: {next_account_info, bookkeeping},
Entry point,
Input point :: program result,
Program_error :: printer,
Pubkey :: pubkey,
};
Entrance! (Program);
Fn main () -> program result {
// Get the number machine number of the regular machine from account information
Let (slot_number, _) = next_account_info (& accounting :: new_indexed ());
Println! ("Slot machine number: {}", slot_number);
In order(())
}
"" ""
In this example, we subscribe to the "slot" event on a certain slot ("1"). If an event occurs with location number 1, we receive the corresponding account information. Let us dive deeper how to use "get -drafting".
Use of geting transaction account
The "Get Transaction Count" function in Solana returns the total number of transactions completed for a specific block. To use this function, you must first receive the blocking of the block and then call "Get Transaction Count". Here is an example:
Rost
Use Solana_Program :: {
Account_info :: {next_account_info, bookkeeping},
Entry point,
Input point :: program result,
Program_error :: Printeror,
Pubkey :: pubkey,
};
Entrance! (Program);
Fn main () -> program result {
// you get the block index (1 in this case)
Leave block_index = next_account_info (& accounting :: new_indexed ()). Pubkey;
// Call up the TRANSACTION COUNT with the blocking index
Be transaction_count = solana_program :: get_transaction_count (block_index)?;
Println! ("Number of transitions: {}", transaction_count);
In order(())
}
"" ""
In this example we receive account information for the second location (2). Then we call the "Get Transaction Count" with the block index. This function returns a value "U128", which represents the total number of final transactions.
Doubt
After trying these functions in our examples of programs, we have joined any doubts:
- Get transactioncount VS GetlotTransactions : We use "Get Transaction Count", but do not receive any results because there are no transactions in Solana. On the other hand, "Slotsubcribe" is designed in such a way that it is operated with the "slot" event that is triggered when a new niche is created or the existing is updated.
- Block index : The block index returned bynext_account_info` does not always correspond to the location number. Rather, we have to use “block_index” to achieve the right result.
- Count of transactions
: As we have seen, “Get Transaction Count” can return zero because there are no transactions in Solana.
Diploma
In this article we examined two important functions in Solana: “Get Transaction Count” and its use with “Slotsubcribe”. We have discussed certain doubts that we tried these functions and delivered examples to show how they are used correctly. If you understand the basics of Solana programming and these functions, you can create good programs that interact with the Solana network.