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Asset
Utils to transfer and query Terra native assets and CW20 tokens

The Asset file defines data structures meant to hold information about an asset and an asset amount as well as logic used to transfer native Terra assets. It also defines logic to display asset information as well as query a pair. Finally, it defines a struct used to hold data about a specific pair (LP token address, tokens in the pool etc).

Name
Description
DECIMAL_FRACTION
Asset decimal points

Name
Description
TOKEN_SYMBOL_MAX_LENGTH
The max accepted length for a token symbol

Name
Description
Contains
Asset
This struct describes a Terra asset (native or CW20).
​
  • info - Information about the asset (stored in a AssetInfo struct)
  • amount - An amount of Asset
PairInfo
This struct holds information about an Astroport pair.
​
  • asset_infos - information about the assets in the pool (each asset being defined by an AssetInfo)
  • contract_addr - the pair contract address
  • liquidity_token - the address of the LP token associated with the pair
  • pair_type - the pair type (XYK, stableswap etc)

Name
Description
fmt::Display:Asset
Logic to display asset information and an asset amount
Asset
Implementation has general logic to compute and deduct a tax for transferring a native asset. It also has logic to determine whether an asset is Terra native
PairInfo
Implementation contains logic to query asset balances from a pair

  • AssetInfo - this enum describes available token types (native and non-native Terra token)

Name
Description
fmt::Display:AssetInfo
Displays the denomination for a native Terra asset or the contract address for a CW20 token
​
The implementation has general logic to check whether an asset is Terra native and a query to return the balance of an asset in a pool contract

Name
Params
Description
addr_validate_to_lower
(api: &dyn Api, addr: &str) -> StdResult<Addr>
Returns a lowercased, validated address upon success
format_lp_token_name
(asset_infos: [AssetInfo; 2], querier: &QuerierWrapper) -> StdResult<String>
Returns a formatted LP token name using the asset symbols (assets that are in a specific pool associated with the LP token)
native_asset
(denom: String, amount: Uint128) -> Asset
Returns an Asset struct containing information about a native Terra asset
token_asset
(contract_addr: Addr, amount: Uint128) -> Asset
Returns an Asset struct containing information about a non-native asset
native_asset_info
(denom: String) -> AssetInfo
Returns a AssetInfo::NativeToken
token_asset_info
(contract_addr: Addr) -> AssetInfo
Returns a AssetInfo::Token
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On this page
1. Summary
2. Variables and Functions
Params
Constants
Structs
Struct Logic
Enums
Enum Logic
Functions