Struct polymesh_api::polymesh::api::checkpoint::QueryApi

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

Implementations

impl<'api> QueryApi<'api>

pub async fn total_supply(
    &self,
    key_0: Ticker,
    key_1: CheckpointId
) -> Result<u128>

Total supply of the token at the checkpoint.

(ticker, checkpointId) -> total supply at given checkpoint

pub async fn balance(
    &self,
    key_0: (Ticker, CheckpointId),
    key_1: IdentityId
) -> Result<u128>

Balance of a DID at a checkpoint.

(ticker, did, checkpoint ID) -> Balance of a DID at a checkpoint

pub async fn checkpoint_id_sequence(&self, key_0: Ticker) -> Result<CheckpointId>

Checkpoints ID generator sequence. ID of first checkpoint is 1 instead of 0.

(ticker) -> no. of checkpoints

pub async fn balance_updates(
    &self,
    key_0: Ticker,
    key_1: IdentityId
) -> Result<Vec<CheckpointId>>

Checkpoints where a DID’s balance was updated. (ticker, did) -> [checkpoint ID where user balance changed]

pub async fn timestamps(&self, key_0: Ticker, key_1: CheckpointId) -> Result<u64>

Checkpoint timestamps.

Every schedule-originated checkpoint maps its ID to its due time. Every checkpoint manually created maps its ID to the time of recording.

(ticker) -> (checkpoint ID) -> checkpoint timestamp

pub async fn schedules_max_complexity(&self) -> Result<u64>

The maximum complexity allowed for an arbitrary ticker’s schedule set (i.e. Schedules storage item below).

pub async fn schedule_id_sequence(&self, key_0: Ticker) -> Result<ScheduleId>

Checkpoint schedule ID sequence for tickers.

(ticker) -> schedule ID

pub async fn schedules(&self, key_0: Ticker) -> Result<Vec<StoredSchedule>>

Checkpoint schedules for tickers.

(ticker) -> [schedule]

pub async fn schedule_ref_count(
    &self,
    key_0: Ticker,
    key_1: ScheduleId
) -> Result<u32>

How many “strong” references are there to a given ScheduleId?

The presence of a “strong” reference, in the sense of Rc<T>, entails that the referenced schedule cannot be removed. Thus, as long as strong_ref_count(schedule_id) > 0, remove_schedule(schedule_id) will error.

(ticker, schedule ID) -> strong ref count

pub async fn schedule_points(
    &self,
    key_0: Ticker,
    key_1: ScheduleId
) -> Result<Vec<CheckpointId>>

All the checkpoints a given schedule originated.

(ticker, schedule ID) -> [checkpoint ID]

pub async fn storage_version(&self) -> Result<Version>

Storage version.

Trait Implementations

impl<'api> Clone for QueryApi<'api>

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

Returns a copy of the value.

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

Performs copy-assignment from source.