Runtime Modules / XYK
Spec Version:
Call Functions
Name | Lookup | Parameters | |
|---|---|---|---|
| create_pool | 4a00 | 4 | |
| add_liquidity | 4a01 | 4 | |
| add_liquidity_with_limits | 4a05 | 5 | |
| remove_liquidity | 4a02 | 3 | |
| remove_liquidity_with_limits | 4a06 | 5 | |
| sell | 4a03 | 5 | |
| buy | 4a04 | 5 |
Events
Name | Lookup | Attributes | |
|---|---|---|---|
| LiquidityAdded | 4a00 | ["AccountId","AssetId","AssetId","Balance","Balance"] | |
| LiquidityRemoved | 4a01 | ["AccountId","AssetId","AssetId","Balance"] | |
| PoolCreated | 4a02 | ["AccountId","AssetId","AssetId","Balance","AssetId","AccountId"] | |
| PoolDestroyed | 4a03 | ["AccountId","AssetId","AssetId","AssetId","AccountId"] | |
| SellExecuted | 4a04 | ["AccountId","AssetId","AssetId","Balance","Balance","AssetId","Balance","AccountId"] | |
| BuyExecuted | 4a05 | ["AccountId","AssetId","AssetId","Balance","Balance","AssetId","Balance","AccountId"] |
Storage Functions
Name | Type | |
|---|---|---|
| ShareToken | {"origin":"Map","n_map_type":{"hashers":["Blake2_128Concat"],"key_vec":["AccountId"],"value":"U32","keys_id":0,"value_id":4}} | |
| TotalLiquidity | {"origin":"Map","n_map_type":{"hashers":["Blake2_128Concat"],"key_vec":["AccountId"],"value":"U128","keys_id":0,"value_id":6}} | |
| PoolAssets | {"origin":"Map","n_map_type":{"hashers":["Blake2_128Concat"],"key_vec":["AccountId"],"value":"Tuple:U32U32","keys_id":0,"value_id":211}} |
Constants
Name | Type | Value | |
|---|---|---|---|
| NativeAssetId | U32 | 00000000 | |
| GetExchangeFee | Tuple:U32U32 | 03000000e8030000 | |
| MinTradingLimit | U128 | e8030000000000000000000000000000 | |
| MinPoolLiquidity | U128 | 40420f00000000000000000000000000 | |
| MaxInRatio | U128 | 03000000000000000000000000000000 | |
| MaxOutRatio | U128 | 03000000000000000000000000000000 | |
| OracleSource | [U8; 8] | 687964726178796b |
Error Types
Name | Docs |
|---|---|
| CannotCreatePoolWithSameAssets | It is not allowed to create a pool between same assets. |
| InsufficientLiquidity | Liquidity has not reached the required minimum. |
| InsufficientTradingAmount | Amount is less than min trading limit. |
| ZeroLiquidity | Liquidity is zero. |
| ZeroInitialPrice | It is not allowed to create a pool with zero initial price.Not used, kept for backward compatibility |
| CreatePoolAssetAmountInvalid | OverflowNot used, kept for backward compatibility |
| InvalidMintedLiquidity | Overflow |
| InvalidLiquidityAmount | Overflow |
| AssetAmountExceededLimit | Asset amount has exceeded given limit. |
| AssetAmountNotReachedLimit | Asset amount has not reached given limit. |
| InsufficientAssetBalance | Asset balance is not sufficient. |
| InsufficientPoolAssetBalance | Not enough asset liquidity in the pool. |
| InsufficientNativeCurrencyBalance | Not enough core asset liquidity in the pool. |
| TokenPoolNotFound | Liquidity pool for given assets does not exist. |
| TokenPoolAlreadyExists | Liquidity pool for given assets already exists. |
| AddAssetAmountInvalid | Overflow |
| RemoveAssetAmountInvalid | Overflow |
| SellAssetAmountInvalid | Overflow |
| BuyAssetAmountInvalid | Overflow |
| FeeAmountInvalid | Overflow |
| CannotApplyDiscount | Overflow |
| MaxOutRatioExceeded | Max fraction of pool to buy in single transaction has been exceeded. |
| MaxInRatioExceeded | Max fraction of pool to sell in single transaction has been exceeded. |
| Overflow | Overflow |
| CannotCreatePool | Pool cannot be created due to outside factors. |
| SlippageLimit | Slippage protection. |