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#12 in #balance
6,670 downloads per month
Used in 56 crates
(5 directly)
2.5MB
42K
SLoC
Release
Polkadot SDK stable2409
lib.rs
:
Asset Rate Pallet
Overview
The AssetRate pallet provides means of setting conversion rates for some asset to native balance.
The supported dispatchable functions are documented in the Call
enum.
Terminology
- Asset balance: The balance type of an arbitrary asset. The network might only know about the identifier of the asset and nothing more.
- Native balance: The balance type of the network's native currency.
Goals
The asset-rate system in Substrate is designed to make the following possible:
- Providing a soft conversion for the balance of supported assets to a default asset class.
- Updating existing conversion rates.
Interface
Permissioned Functions
create
: Creates a new asset conversion rate.remove
: Removes an existing asset conversion rate.update
: Overwrites an existing assert conversion rate.
Please refer to the Call
enum and its associated variants for documentation on each
function.
Assumptions
- Conversion rates are only used as estimates, and are not designed to be precise or closely tracking real world values.
- All conversion rates reflect the ration of some asset to native, e.g. native = asset * rate.
Dependencies
~18–33MB
~544K SLoC