Trait AssetConversionApi

pub trait AssetConversionApi<Block: BlockT, Balance, AssetId>: Core<Block>
where
    Balance: Balance + MaybeDisplay,
    AssetId: Codec,
{
    // Provided methods
    fn quote_price_tokens_for_exact_tokens(
        &self,
        __runtime_api_at_param__: <Block as BlockT>::Hash,
        asset1: AssetId,
        asset2: AssetId,
        amount: Balance,
        include_fee: bool,
    ) -> Result<Option<Balance>, ApiError> { ... }
    fn quote_price_exact_tokens_for_tokens(
        &self,
        __runtime_api_at_param__: <Block as BlockT>::Hash,
        asset1: AssetId,
        asset2: AssetId,
        amount: Balance,
        include_fee: bool,
    ) -> Result<Option<Balance>, ApiError> { ... }
    fn get_reserves(
        &self,
        __runtime_api_at_param__: <Block as BlockT>::Hash,
        asset1: AssetId,
        asset2: AssetId,
    ) -> Result<Option<(Balance, Balance)>, ApiError> { ... }
}

This runtime api allows people to query the size of the liquidity pools and quote prices for swaps.

Provided Methods

fn quote_price_tokens_for_exact_tokens( &self, __runtime_api_at_param__: <Block as BlockT>::Hash, asset1: AssetId, asset2: AssetId, amount: Balance, include_fee: bool, ) -> Result<Option<Balance>, ApiError>

Provides a quote for Pallet::swap_tokens_for_exact_tokens.

Note that the price may have changed by the time the transaction is executed. (Use amount_in_max to control slippage.)

fn quote_price_exact_tokens_for_tokens( &self, __runtime_api_at_param__: <Block as BlockT>::Hash, asset1: AssetId, asset2: AssetId, amount: Balance, include_fee: bool, ) -> Result<Option<Balance>, ApiError>

Provides a quote for Pallet::swap_exact_tokens_for_tokens.

Note that the price may have changed by the time the transaction is executed. (Use amount_out_min to control slippage.)

fn get_reserves( &self, __runtime_api_at_param__: <Block as BlockT>::Hash, asset1: AssetId, asset2: AssetId, ) -> Result<Option<(Balance, Balance)>, ApiError>

Returns the size of the liquidity pool for the given asset pair.

Trait Implementations

impl<Block: BlockT, Balance, AssetId> RuntimeApiInfo for dyn AssetConversionApi<Block, Balance, AssetId>

const ID: [u8; 8] = _

The identifier of the runtime api.

const VERSION: u32 = 1u32

The version of the runtime api.

Implementors

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> AssetConversionApi<__SrApiBlock__, u128, Location> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>

where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> AssetConversionApi<__SrApiBlock__, u128, Location> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>

where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> AssetConversionApi<__SrApiBlock__, u128, NativeOrWithId<u32>> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>

where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> AssetConversionApi<__SrApiBlock__, u128, Location> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>

where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,