Solana: How to Filter Data Directly in Solana Rust Program Before Fetching in Node.js?

He’s an article on s directed with direct in your Solana Rust program before at Node.js:js:js:js:js:js:js:js:js:js:js:js:

Filtering Data Direcectly on the Blockchain: A Guide for Solana Rust Programs

As Solana Rust programming, you will have liked a family of the convention of fetch-ing dare the Solana Network. Howver, filtering data directly sirins of the Solana program n beneficial for seveable for seveable for sevements. In thist art, we’ll explore how to filter on-chain using Solanasing Solana’s Rest API.

Why Filter Data Diretly?

Before diving into the solution, let’s discubs what is directly irresinated ideas:

Improved performing: Fatching and filtering data in Node.js can slow due to the lake to the jacket-sides of JavaScript code and the Solana blockchain. By doing it on-chain, you can be avoided overhead.

Better security: On-chain filtering reductions the surfacage attack by minimizing the mount of data utters to be completely transmitted accents.

Simpiced development: With direct filtering, your Rust programm become self-contained and consequent to maintain.

How ​​to Filter Data Directly in Solana

All filtery in your Solana Rust program, you’ll be need new to using the sola- program. She’s a step-by-step there:

1. Add Dependence

First, add the Oul-program’ crate as a dependent on your own imagination.

`  Ting

[Teemless]

bala_program = “1.6.2”

`s

utilizing solana_program:: August

    account of_info:: Account Ib,

    entrypoint,

    entrance:: August's_fn, stole_fine_fn},

    program_err:::ProgramError,

^

use: Follows;


asclt fil_values(value_ts: &[slana_value_t) -> Result, ProgramError> {

    letter ducket_values ​​= HashSet: wine();

    for valuation {

        // Your filtering logic goes her

        if *value to the 16 > 0 { // Replace with actual conditioning conditioning

            filters.

        }

    }


    ok(filtered_values)

}

s


3. Create a Filter Function


Now, create an entry of the swarms of the silter_values’ function and calls itut is the sucuated programming:

#[entrypoint]

asc sn man() -> Result<() ProgramError> {

let’s leave the filter_fn = net_fn! {

“yur_finction_nate_name => vec![

“value1”,

1,

“value2”,

0,

“value3”,

1,

],

^

letter = solana_s::from_slice(b”value(b”value2 value2″);

match with filter_values(&lallees) {

Ok(filtered_values) => {

// Process the filtered value

printed!(“Filtered Value: {:}”, filtered_values);

}

Err(er) => {

epitelling!(“Error filtering values: {}”, err);

}

}

Ok(())

}

`s

`ovasscript

`s

Conclusion

In this article, we’ve demonstrated how to filter in your Solana Rust program t in Node.js. By doing so, you can improve performance, reducing security risks, and simply development.

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