Stake Program

A native SOL staking program built on Solana using the Anchor framework.

Overview

This program allows users to stake and unstake native SOL tokens. It uses Program Derived Addresses (PDAs) for secure, trustless management of staked funds.

Features

• Stake SOL - Deposit native SOL into the staking vault
• Unstake SOL - Withdraw staked SOL from the vault
• PDA-based Security - All funds are held in program-owned accounts with no private keys
• Per-user Tracking - Individual stake accounts track each user's deposits and timestamps

Architecture

Accounts

Account	Seeds	Description
Vault	["vault"]	Singleton vault storing total staked amount and authority
VaultSolAccount	["vault_sol"]	PDA holding the actual staked SOL
StakeAccount	["stake", user_pubkey]	Per-user account tracking stake amount and timestamp

Instructions

1. initialize_vault - Creates the vault and vault SOL account (one-time setup)
2. stake_sol - Stakes SOL from user wallet to the vault
3. unstake_sol - Withdraws staked SOL back to user wallet

Getting Started

Prerequisites

• Rust
• Solana CLI
• Anchor
• Bun (for running tests)

Installation

# Install dependencies
yarn install

# Build the program
anchor build

# Run tests
cd tests-bun && bun test

Local Development

# Start local validator
solana-test-validator

# Deploy to localnet
anchor deploy

Program ID

BjXncxDW9oA7TqLdWVLcgyhoPT3vecadXmi9HJFw2Hmc

Project Structure

├── programs/stake/
│   └── src/
│       ├── lib.rs          # Program entrypoint and instructions
│       ├── state.rs        # Account structures (Vault, StakeAccount)
│       ├── error.rs        # Custom error types
│       └── instructions/   # Instruction handlers
├── tests-bun/
│   └── stake.test.ts       # Bun test suite
├── target/
│   ├── idl/               # Generated IDL
│   └── types/             # Generated TypeScript types
└── Anchor.toml            # Anchor configuration

License

MIT