scripts 0.1.0

A short description of your crate
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

use solana_client::nonblocking::rpc_client::RpcClient;
use solana_sdk::{
    instruction::Instruction,
    program_pack::Pack,
    signer::{keypair::Keypair, Signer},
    transaction::Transaction,
};
use spl_token_interface::state::Mint;

#[derive(serde::Deserialize)]
struct Env {
    rpc_url: url::Url,
    signer_keypair: String,
    mint_keypair: String,
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let env = envy::from_env::<Env>()?;
    let signer_wallet = Keypair::from_base58_string(&env.signer_keypair);
    let mint_account = Keypair::from_base58_string(&env.mint_keypair);
    let client = RpcClient::new(env.rpc_url.to_string());

    let decimals = 9;

    let minimum_balance_for_rent_exemption = client
        .get_minimum_balance_for_rent_exemption(Mint::LEN)
        .await?;

    let create_account_instruction: Instruction =
        solana_system_interface::instruction::create_account(
            &signer_wallet.pubkey(),
            &mint_account.pubkey(),
            minimum_balance_for_rent_exemption,
            Mint::LEN as u64,
            &spl_token_interface::ID,
        );

    let initialize_mint_instruction: Instruction =
        spl_token_interface::instruction::initialize_mint(
            &spl_token_interface::ID,
            &mint_account.pubkey(),
            &signer_wallet.pubkey(),
            None,
            decimals,
        )?;

    let recent_blockhash = client.get_latest_blockhash().await?;

    let transaction: Transaction = Transaction::new_signed_with_payer(
        &[create_account_instruction, initialize_mint_instruction],
        Some(&signer_wallet.pubkey()),
        &[&mint_account, &signer_wallet],
        recent_blockhash,
    );

    client
        .send_and_confirm_transaction_with_spinner(&transaction)
        .await?;

    println!(
        "SPL Token mint account with {} decimals created successfully:\n{}",
        decimals,
        mint_account.pubkey().to_string()
    );

    Ok(())
}