Solana: Decode Program data: and extract transaction amount
Solana’s data decoding: separation of the transaction amount
Solana is a platform decentralized in Open Source (DAPP), which uses the Consensus Proof of Stake (POS) and the innovative Turing programming language called Rust. One of the key features is the possibility of storing the program data in a compressed, coded database 58. However, separating these data and transforming them into a useful amount of transactions can be difficult.
problem:
When starting the Solana program on maints, it stores the program status in a binary file. To access this data, you need to read the binary file and separate the relevant information. Unfortunately, Solana does not provide built -in functions or API interfaces to do it directly.
Solution: Using the “Solana-Program” library
Fortunately, there is an open source library called “Solana-Program”, which provides a simple interface for interaction with Solana programs. This library allows you to read and save the program data in a compressed Coded Base58 format.
Here is an example of how you can use this library to separate the transaction amount from the Solana program:
Install dependencies
Before starting, make sure you install the required relationships:
`Bash
PIP Install the Solana program
Sample code:
`Python
z Solana. Import entry_Point program, program_d
@entry_Point ("Get_account")
def get_account (program_id, account_index):
Load program data from the file
with open (f "{program_id}/data", "rb") as F:
program_data = f.Read ()
Decorate coded data Base58
Decoded_data = solana_program.decode_base64 (program_data)
Separate the transaction amount (assuming it is stored in the last byte)
transaction_amount = decoded_data [-1]
Return transaction_amount
Start the entry point when the new account is created or updated
Entry_Point ("Main", Get_ACCOUNT)
how it works:
1 They represent the program identifier and current account index.
- The function charges the program data from the file using “Open”.
- Decoded Coded Data Base58 are read to the variable “decoded_data”.
- We assume that the transaction amount is stored in the last byte of the program data. In this case, we separate it using
Decoded_data [-1].
- Finally, we return the separate amount of the transaction.
Advice:
- Make sure you adjust the "program_id i
conct_index
values according to the Solana configuration.
- This example assumes a simple program that stores the amount of transactions in the last byte of data. Depending on the specific case of use, it may be necessary to modify this approach.
- It should be remembered that this is a simplified example and additional measurements of error and safety while working with sensitive data data should be considered.
By following these steps, you can successfully separate the transaction amount from the Solana program using the “Solana-Program” library.