44 lines
904 B
Rust
44 lines
904 B
Rust
// #region code
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use anchor_lang::prelude::*;
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#[program]
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pub mod basic_4 {
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use super::*;
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#[state]
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pub struct Counter {
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authority: Pubkey,
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count: u64,
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}
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impl Counter {
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pub fn new(ctx: Context<Auth>) -> Result<Self> {
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Ok(Self {
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authority: *ctx.accounts.authority.key,
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count: 0,
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})
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}
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pub fn increment(&mut self, ctx: Context<Auth>) -> Result<()> {
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if &self.authority != ctx.accounts.authority.key {
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return Err(ErrorCode::Unauthorized.into());
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}
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self.count += 1;
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Ok(())
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}
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}
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}
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#[derive(Accounts)]
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pub struct Auth<'info> {
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#[account(signer)]
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authority: AccountInfo<'info>,
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}
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// #endregion code
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#[error]
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pub enum ErrorCode {
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#[msg("You are not authorized to perform this action.")]
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Unauthorized,
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}
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