miden-ntx-builder 0.16.1

Miden network transaction builder
Documentation 
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//! Reads the validator signing keys retained from the genesis header.

use miden_node_db::DatabaseError;
use miden_node_db::sqlite::ReadTx;
use miden_protocol::block::ValidatorKeys;

const SQL: &str = include_str!("select_genesis_validator_keys.sql");

/// Reads the validator signing keys retained from the genesis header, or `None` if the database
/// predates the column and must be re-bootstrapped.
pub fn select_genesis_validator_keys(
    tx: &ReadTx<'_>,
) -> Result<Option<ValidatorKeys>, DatabaseError> {
    Ok(tx
        .query(SQL, &[], |row| row.get::<Option<ValidatorKeys>>(0))?
        .into_iter()
        .next()
        .flatten())
}