Programs Basics

cargo install --git https://github.com/coral-xyz/anchor --tag v0.32.1 anchor-cli
anchor --version

use anchor_lang::prelude::*;
declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
 
#[program]
pub mod hello {
    use super::*;
    pub fn initialize(_ctx: Context<Initialize>) -> Result<()> {
        msg!("Hello from Agave 4.1.1");
        Ok(())
    }
}
#[derive(Accounts)]
pub struct Initialize {}

anchor build
anchor deploy --provider.cluster devnet
solana program show <PROGRAM_ID>

anchor run test
# Or: solana program invoke <PROGRAM_ID> --data <BYTES>

#[account]
pub struct Counter { pub value: u64 }
// State in Counter account, not in program binary

#[derive(Accounts)]
pub struct Increment<'info> {
    #[account(mut)]
    pub counter: Account<'info, Counter>,
}

solana confirm -v <SIG> | grep "consumed"

use anchor_lang::system_program;
 
pub fn fund(ctx: Context<Fund>, lamports: u64) -> Result<()> {
    system_program::transfer(
        CpiContext::new(ctx.accounts.system_program.to_account_info(), /* ... */),
        lamports,
    )?;
    Ok(())
}

#[account(seeds = [b"user", user.key().as_ref()], bump)]
pub position: Account<'info, Position>,

npx surfpool@0.12.0 run anchor test