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use std::ops::{Deref, DerefMut};
pub use solana_client::{client_error, rpc_client::RpcClient};
use solana_sdk::{
hash::Hash,
program_error::ProgramError,
pubkey::Pubkey,
signature::{Keypair, Signature, Signer},
system_instruction,
transaction::Transaction,
};
use thiserror::Error;
#[derive(Debug, Error)]
pub enum ClientError {
#[error(transparent)]
Client(#[from] client_error::ClientError),
#[error(transparent)]
Program(#[from] ProgramError),
}
pub type ClientResult<T> = Result<T, ClientError>;
pub struct Client {
pub client: RpcClient,
pub payer: Keypair,
}
impl Client {
pub fn payer(&self) -> &Keypair {
&self.payer
}
pub fn payer_pubkey(&self) -> Pubkey {
self.payer.pubkey()
}
pub fn latest_blockhash(&self) -> ClientResult<Hash> {
Ok(self.client.get_latest_blockhash()?)
}
pub fn process_transaction(&self, transaction: &Transaction) -> ClientResult<()> {
self.send_and_confirm_transaction(transaction)?;
Ok(())
}
pub fn create_account(
&self,
owner: &Pubkey,
account_data_len: usize,
lamports: Option<u64>,
) -> ClientResult<Keypair> {
let account = Keypair::new();
let lamports = if let Some(lamports) = lamports {
lamports
} else {
self.get_minimum_balance_for_rent_exemption(account_data_len)?
};
let mut transaction = Transaction::new_with_payer(
&[system_instruction::create_account(
&self.payer_pubkey(),
&account.pubkey(),
lamports,
account_data_len as u64,
owner,
)],
Some(&self.payer_pubkey()),
);
transaction.sign(&[self.payer(), &account], self.latest_blockhash()?);
self.process_transaction(&transaction)?;
Ok(account)
}
pub fn airdrop(&self, to_pubkey: &Pubkey, lamports: u64) -> ClientResult<Signature> {
let blockhash = self.client.get_latest_blockhash()?;
let signature = self.request_airdrop_with_blockhash(to_pubkey, lamports, &blockhash)?;
self.confirm_transaction_with_spinner(&signature, &blockhash, self.commitment())?;
Ok(signature)
}
}
impl Deref for Client {
type Target = RpcClient;
fn deref(&self) -> &Self::Target {
&self.client
}
}
impl DerefMut for Client {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.client
}
}