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- Add new redemption program structure following vault pattern - Program ID: rdm5xmgfjVn2WXCNrdEuBDoj3JJHt7K6M82jBnXf1Ef - Add to Anchor.toml (devnet, localnet, mainnet) - Create lib.rs, state.rs, errors.rs, constants.rs, instructions/mod.rs - Store keypair in .keys/redemption.json
Implements a secure token redemption system for liquidating treasury: ## Instructions - initialize: Admin sets price and deposits quote tokens - deposit: Admin adds more quote tokens - withdraw: Admin reclaims quote and/or collected base tokens - redeem: Users exchange base tokens for quote at set price ## Security - Overflow protection using u128 intermediate calculations - InsufficientVaultBalance check before any transfers - Zero-amount validation on all operations - QuoteAmountTooSmall prevents dust redemptions - Admin-only access control on deposit/withdraw - PDA-signed transfers for vault operations ## State - RedemptionVault: stores admin, mints, price, decimals, stats - Events emitted for all operations for indexing
- Remove deposit instruction (use initialize once) - Remove tracking stats - Slim down state, errors, constants - Cleaner code structure
- Add nonce field to RedemptionVault for multiple vaults per mint pair - PDA seeds now: [VAULT_SEED, base_mint, quote_mint, nonce] - Restore full AGPL license headers - Add doc comments to handlers
- Use InterfaceAccount for Mint and TokenAccount - Use Interface<TokenInterface> for token programs - Separate base_token_program and quote_token_program - Use transfer_checked for all transfers - Store quote_decimals in vault state
Tests: - Initialize vault (9-dec base, 6-dec quote, 0.0002758 price) - Redeem 1M base → ~275.8 quote - InsufficientBalance error when over-redeeming - Admin withdrawal of remaining funds
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Config vars: - BASE_MINT: FAIR token (9 dec) - QUOTE_MINT: USDC (6 dec) - PRICE: 276 (0.000276 USDC per FAIR) - DEPOSIT: 10 USDC - NONCE: configurable
No more env vars needed. Just run: npx tsx scripts/init-vault.ts Or override cluster: npx tsx scripts/init-vault.ts --cluster devnet
- New deposit instruction in redemption program - deposit-vault.ts script for easy deposits - Admin can add more quote tokens anytime
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Summary
Adds a new
redemptionprogram for liquidating treasury tokens.Features
Program ID
rdm5xmgfjVn2WXCNrdEuBDoj3JJHt7K6M82jBnXf1EfStructure
initialize- Admin sets price, deposits quote tokenswithdraw- Admin reclaims fundsredeem- Users exchange base for quote at set rate