📚Common Types

The common types are the data structures that are used across the MANTRA DEX contracts.

Struct	Description	Contains
Epoch	The epoch definition	id: u64 - Epoch identifier start_time: Timestamp - Epoch start time
EpochConfig	The epoch configuration	duration: Uint64 - The duration of an epoch in seconds. genesis_epoch: Uint64 - Timestamp for the first epoch, in seconds.
EpochResponse	The response for the current epoch query	epoch: Epoch - The epoch queried.
EpochChangedHookMsg	The hook msg for epoch changed	current_epoch: Epoch - The current epoch.
Fee	The definition of the fee, used on the pool and farm managers	share: Decimal - the fee.
PoolFee	Represents the fee structure for transactions within a pool	protocol_fee: Fee - Fee percentage charged on each transaction for the protocol's benefit. swap_fee: Fee - Fee percentage allocated to liquidity providers on each swap. burn_fee: Fee - Fee percentage that is burned on each transaction. Burning a portion of the transaction fee helps in reducing the overall token supply. extra_fees: Vec<Fee> - A list of custom, additional fees that can be defined for specific use cases or additional functionalities.
FarmParams	Parameters for creating farm	lp_denom: String - The LP asset denom to create the farm for. start_epoch: Option<u64> - The epoch at which the farm will start. If unspecified, it will start at the current epoch. preliminary_end_epoch: Option<u64> - The epoch at which the farm should preliminarily end (if it's not expanded). curve: Option<Curve> - The type of distribution curve. If unspecified, the distribution will be linear. farm_asset: Coin - The asset to be distributed in this farm. farm_identifier: Option<String> - If set, it will be used to identify the farm.
Farm	The definition of an farm	identifier: String - The ID of the farm. owner: Addr - The account which opened the farm and can manage it. lp_denom: String - The LP asset denom to create the farm for. farm_asset: Coin - The asset the farm to be distributed. claimed_amount: Uint128 - The amount of the farm_asset that has been claimed so far. emission_rate: Uint128 - The amount of the farm_asset that is to be distributed every epoch. curve: Curve - The type of curve the farm has. start_epoch: u64 - The epoch at which the farm starts. preliminary_end_epoch: u64 - The epoch at which the farm will preliminary end (in case it's not expanded). last_epoch_claimed: u64 - The last epoch this farm was claimed.
Position	Represents an LP position on the farm manager	identifier: String - The identifier of the position. lp_asset: Coin - The amount of LP tokens that are put up to earn farm rewards. unlocking_duration: u64 - Represents the amount of time in seconds the user must wait after unlocking for the LP tokens to be released. open: bool - If true, the position is open. If false, the position is closed. expiring_at: Option<u64> - The block height at which the position, after being closed, can be withdrawn. receiver: Addr - The owner of the position.

Enums	Description	Alternatives
FarmsBy	Enum to filter farms by identifier, lp denom or the farm asset. Used in the Farms query.	Identifier(String) LpDenom(String) > FarmAsset(String)
PositionsBy	Enum to filter positions by identifier or receiver. Used in the positions query.	Identifier(String) > Receiver(String)
FarmAction	Actions to manage a farm	Fill { params: FarmParams } - Fills a farm Close { farm_identifier: String } - Closes a farm
PositionAction	Actions to manage a position	Create { identifier: Option<String>, unlocking_duration: u64, receiver: Option<String> } - Creates a position Expand { identifier: String } - Expands a position Close { identifier: String, lp_asset: Option<Coin> } - Closes an existing position. The position stops earning farm rewards. Withdraw { identifier: String, emergency_unlock: Option<bool> } - Withdraws the LP tokens from a position after the position has been closed and the unlocking duration has passed.
Curve	Dictates how the farms rewards are released	Linear - A linear curve that releases assets uniformly over time.
RewardsResponse	Rewards response used for calculating or querying farm rewards	RewardsResponse { total_rewards: Vec<Coin>, rewards_per_lp_denom: Vec<(String, Vec<Coin>) } - The farm rewards response. QueryRewardsResponse { rewards: Vec<Coin> } - Rewards response used internally when querying the rewards. ClaimRewards { rewards: Vec<Coin>, modified_farms: HashMap<String, Uint128> } - Used when claiming rewards on farms.
SwapOperation	The type of swap operation to perform	MantraSwap { token_in_denom: String, token_out_denom: String, pool_identifier: String } - A swap operation that uses the MantraSwap router
PoolType	Possible pool types, it can be either a constant product (xyk) pool or a stable swap pool	StableSwap { amp: u64 } - A stable swap pool ConstantProduct - xyk pool