Struct BalancesQueryApi 

pub struct BalancesQueryApi<'api> { /* private fields */ }

Implementations

impl<'api> BalancesQueryApi<'api>

pub async fn total_issuance(&self) -> Result<u128>

The total units issued in the system.

pub async fn inactive_issuance(&self) -> Result<u128>

The total units of outstanding deactivated balance in the system.

pub async fn account(&self, key_0: AccountId) -> Result<AccountData<u128>>

The Balances pallet example of storing the balance of an account.

Example

 impl pallet_balances::Config for Runtime {
   type AccountStore = StorageMapShim<Self::Account<Runtime>, frame_system::Provider<Runtime>, AccountId, Self::AccountData<Balance>>
 }

You can also store the balance of an account in the System pallet.

Example

 impl pallet_balances::Config for Runtime {
  type AccountStore = System
 }

But this comes with tradeoffs, storing account balances in the system pallet stores frame_system data alongside the account data contrary to storing account balances in the Balances pallet, which uses a StorageMap to store balances data only. NOTE: This is only used in the case that this pallet is used to store balances.

pub async fn locks(&self, key_0: AccountId) -> Result<Vec<BalanceLock<u128>>>

Any liquidity locks on some account balances. NOTE: Should only be accessed when setting, changing and freeing a lock.

Use of locks is deprecated in favour of freezes. See https://github.com/paritytech/substrate/pull/12951/

pub async fn reserves( &self, key_0: AccountId, ) -> Result<Vec<ReserveData<[u8; 8], u128>>>

Named reserves on some account balances.

Use of reserves is deprecated in favour of holds. See https://github.com/paritytech/substrate/pull/12951/

pub async fn holds( &self, key_0: AccountId, ) -> Result<Vec<IdAmount<RuntimeHoldReason, u128>>>

Holds on account balances.

pub async fn freezes( &self, key_0: AccountId, ) -> Result<Vec<IdAmount<[u8; 8], u128>>>

Freeze locks on account balances.

Trait Implementations

impl<'api> Clone for BalancesQueryApi<'api>

fn clone(&self) -> BalancesQueryApi<'api>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.