🎯 SPL Stake Pool — Template

Type: Anchor

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📘 Use Case

This template implements a full-featured interface to the official SPL Stake Pool program using Anchor. It allows users to stake SOL or stake accounts and receive pool tokens in return. The pool manager can dynamically add or remove validators, manage fees, rebalance validator stakes, and interact with on-chain token metadata. Ideal for building liquid staking protocols or validator management platforms on Solana.

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🧱 Data Structure

Account	Description
StakePool	Holds pool config, authorities, fees, validator list, and mint.
ValidatorList	Stores all validator stake entries registered in the pool.
StakeAccount	User or validator-specific stake accounts managed by the pool.
PoolMint	SPL Token mint representing the stake pool token.
TokenAccount	Associated Token Accounts for holding pool tokens.

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🧾 Instructions

Name	Description
initialize	Initializes the stake pool with fees, max validators, and authorities.
deposit_sol	Allows a user to deposit SOL and receive pool tokens.
deposit_stake	Deposits a user-provided stake account into the pool.
withdraw_sol	Withdraws SOL in exchange for burning pool tokens.
withdraw_stake	Withdraws stake accounts instead of SOL.
update_stake_pool_balance	Updates internal accounting of validator balances.
add_validator_to_pool	Adds a validator vote account to the stake pool.
remove_validator_from_pool	Removes a validator from the pool.
increase_validator_stake	Delegates additional stake to a validator.
decrease_validator_stake_with_vote	Deactivates and withdraws stake from a validator.
set_preferred_validator	Sets a preferred validator for deposits/withdrawals.
update_validator_list_balance	Refreshes balances and optionally merges transient stake.
set_manager, set_staker	Admin functions to update pool manager or staker.
set_fee, set_funding_authority	Admin functions to update fees or funding permissions.
create_token_metadata	Creates on-chain metadata for the stake pool token.
update_token_metadata	Updates the name, symbol, or URI of the pool token.