Program With Seeds Example - Anchor Typing CST Test

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Program With Seeds Example — Anchor Code

Uses seeds to deterministically create program accounts.

#[program]
mod seeds_example {
	use super::*;
	pub fn create_account(ctx: Context<Create>, seed: u64) -> Result<()> {
		let account = &mut ctx.accounts.my_account;
		account.data = seed;
		Ok(())
	}

	#[derive(Accounts)]
	pub struct Create<'info> {
		#[account(init, seeds=[b"seed", &seed.to_le_bytes()], bump, payer=user, space=8+8)]
		pub my_account: ProgramAccount<'info, MyAccount>,
		#[account(signer)]
		pub user: AccountInfo<'info>,
		pub system_program: Program<'info, System>,
	}

	#[account]
	pub struct MyAccount {
		pub data: u64,
	}
}

Anchor Language Guide

Anchor is a Rust-based framework for Solana smart contract (program) development, testing, and deployment. It simplifies building Solana dApps by providing a high-level abstraction over Solana programs and client interactions.

Primary Use Cases

▸Writing Solana smart contracts in Rust
▸Generating client interfaces (IDL) for programs
▸Testing programs with simulated Solana clusters
▸Deploying Solana programs to devnet/testnet/mainnet
▸Automating transactions and client-side interactions

Notable Features

▸Rust-based Solana program development
▸IDL generation for client libraries
▸Anchor CLI for scaffolding, building, and deploying programs
▸Testing framework integrated with Solana local validator
▸Macros to reduce boilerplate for accounts, instructions, and errors

Origin & Creator

Anchor was created by Project Serum team members in 2020 to simplify Solana program development, reduce boilerplate, and improve developer productivity.

Industrial Note

Anchor is widely used in DeFi, NFT, and other Solana ecosystem projects, as it standardizes Solana program structure and automates common patterns like account validation and serialization.

More Anchor Typing Exercises

Anchor Simple Counter Program Anchor Token Mint Example Anchor Initialize Account Example Anchor Transfer SOL Example Anchor PDA Example Anchor Multisig Example Anchor Escrow Example Anchor Event Emission Example Anchor Custom Error Example

Practice Other Languages

C React Python C++Rust TypeScript Kotlin PHP Java C#Ruby Mql Cql N1ql Cypher

Program With Seeds Example — Anchor Code

Uses seeds to deterministically create program accounts.

#[program] mod seeds_example { use super::*; pub fn create_account(ctx: Context<Create>, seed: u64) -> Result<()> { let account = &mut ctx.accounts.my_account; account.data = seed; Ok(()) } #[derive(Accounts)] pub struct Create<'info> { #[account(init, seeds=[b"seed", &seed.to_le_bytes()], bump, payer=user, space=8+8)] pub my_account: ProgramAccount<'info, MyAccount>, #[account(signer)] pub user: AccountInfo<'info>, pub system_program: Program<'info, System>, } #[account] pub struct MyAccount { pub data: u64, } }

Anchor Language Guide

Primary Use Cases

▸Writing Solana smart contracts in Rust
▸Generating client interfaces (IDL) for programs
▸Testing programs with simulated Solana clusters
▸Deploying Solana programs to devnet/testnet/mainnet
▸Automating transactions and client-side interactions

Notable Features

▸Rust-based Solana program development
▸IDL generation for client libraries
▸Anchor CLI for scaffolding, building, and deploying programs
▸Testing framework integrated with Solana local validator
▸Macros to reduce boilerplate for accounts, instructions, and errors

Origin & Creator

Anchor was created by Project Serum team members in 2020 to simplify Solana program development, reduce boilerplate, and improve developer productivity.

Industrial Note

Anchor is widely used in DeFi, NFT, and other Solana ecosystem projects, as it standardizes Solana program structure and automates common patterns like account validation and serialization.