Function read_keypair 

pub fn read_keypair(path: impl AsRef<Path>) -> Result<PrivKey, IoError>

Reads a private key from a JSON file at the specified path

This function loads a serialized private key from a JSON file, allowing applications to use saved keys for signing operations.

Parameters

• path - File system path to a JSON file containing a serialized private key

Returns

• Result<PrivKey, IoError> - Deserialized private key or an I/O error

Errors

Returns IoError if:

• The file cannot be read;
• The file doesn’t contain valid JSON; or
• The JSON doesn’t represent a valid private key

Example

use delta_base_sdk::crypto::{read_keypair, ed25519};
use std::path::Path;

fn load_key() -> Result<ed25519::PrivKey, Box<dyn std::error::Error>> {
    let key_path = Path::new("./my_key.json");
    let private_key = read_keypair(key_path)?;
    Ok(private_key)
}