light-sdk 0.23.0

Rust SDK for ZK Compression on Solana
Documentation 
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use solana_pubkey::Pubkey;

#[allow(unused_imports)]
use crate::constants::{CPI_AUTHORITY_PDA_SEED, RENT_SPONSOR_SEED};
#[macro_export]
macro_rules! find_cpi_signer_macro {
    ($program_id:expr) => {
        Pubkey::find_program_address([CPI_AUTHORITY_PDA_SEED].as_slice(), $program_id)
    };
}

pub fn get_light_cpi_signer_seeds(program_id: &Pubkey) -> ([Vec<u8>; 2], Pubkey) {
    let seeds = &[CPI_AUTHORITY_PDA_SEED];

    let (pda, bump) = solana_pubkey::Pubkey::find_program_address(seeds, program_id);

    let signer_seeds_bump = bump;

    let signer_seeds: [Vec<u8>; 2] = [CPI_AUTHORITY_PDA_SEED.to_vec(), vec![signer_seeds_bump]];
    (signer_seeds, pda)
}

/// Derives the rent sponsor PDA for a given program.
///
/// Seeds: ["rent_sponsor"]
pub fn derive_rent_sponsor_pda(program_id: &Pubkey) -> (Pubkey, u8) {
    Pubkey::find_program_address(&[RENT_SPONSOR_SEED], program_id)
}