This is a collection of common types and the queriers which are commonly used in dezswap contracts.
AssetInfo is a convience wrapper to represent the native token and the contract token as a single type.
```rust
pub enum AssetInfo { Token { contract_addr: HumanAddr }, NativeToken { denom: String }, } ```
It contains asset info with the amount of token.
rust
pub struct Asset {
pub info: AssetInfo,
pub amount: Uint128,
}
It is used to represent response data of Pair-Info-Querier
rust
pub struct PairInfo {
pub asset_infos: [AssetInfo; 2],
pub contract_addr: String,
pub liquidity_token: String,
pub asset_decimals: [u8; 2],
}
It uses CosmWasm standard interface to query the account balance to chain.
rust
pub fn query_balance(
querier: &QuerierWrapper,
account_addr: Addr,
denom: String,
) -> StdResult<Uint128>
It provides simliar query interface with Native-Token-Balance-Querier for CW20 token balance.
rust
pub fn query_token_balance(
querier: &QuerierWrapper,
contract_addr: Addr,
account_addr: Addr,
) -> StdResult<Uint128>
It provides token info querier for CW20 token contract.
rust
pub fn query_token_info(
querier: &QuerierWrapper,
contract_addr: Addr,
) -> StdResult<TokenInfoResponse>
It provides native token decimals querier for factory contract.
rust
pub fn query_native_decimals(
querier: &QuerierWrapper,
factory_contract: Addr,
denom: String,
) -> StdResult<u8>
It also provides the query interface to query avaliable dezswap pair contract info. Any contract can query pair info to dezswap factory contract.
rust
pub fn query_pair_info(
querier: &QuerierWrapper,
factory_contract: Addr,
asset_infos: &[AssetInfo; 2],
) -> StdResult<PairInfo>
It also provides the query interface to query avaliable dezswap pair contract info. Any contract can query pair info to pair contract.
rust
pub fn query_pair_info_from_pair(
querier: &QuerierWrapper,
pair_contract: Addr,
) -> StdResult<PairInfo>