Struct HistoryRequest 

#[non_exhaustive]
pub struct HistoryRequest {
    pub symbol: String,
    pub timeframe: Timeframe,
    pub clock: BarClock,
    pub before: Option<DateTime<Utc>>,
    pub since: Option<DateTime<Utc>>,
    pub count: usize,
    pub extended_hours: bool,
    pub adjusted: bool,
    pub conversion: Option<String>,
}

A request for one page of history.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

symbol: String

Instrument identifier used by the host.

timeframe: Timeframe

Bar interval requested from the feed.

clock: BarClock

Calendar boundaries selected by the chart, shared by historical and streaming aggregation.

before: Option<DateTime<Utc>>

Only bars that open strictly before this instant: the end of the range is exclusive. None is the initial load and asks for the latest bars.

since: Option<DateTime<Utc>>

Only bars that open at or after this instant: the start of the range is inclusive. With before it bounds the range as [since, before); answer the newest count bars of it. The chart sets it when it needs bars back to a time it does not hold, such as for Chart::scroll_to_time (requires widget). None bounds the range by count alone.

count: usize

Bars wanted. Fewer is fine; the chart asks again as the user scrolls back.

extended_hours: bool

Include the instrument’s extended trading hours, as well as regular hours.

adjusted: bool

Request dividend-adjusted bars when the instrument supports them. An unsupported feed returns unadjusted bars; Instrument::dividend_adjustment advertises the choice.

conversion: Option<String>

The currency or unit the host chose, in which the bars are wanted, as Datafeed::resolve_converted described the symbol. None asks for the instrument’s own.

Trait Implementations

impl Clone for HistoryRequest

fn clone(&self) -> HistoryRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HistoryRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for HistoryRequest

fn eq(&self, other: &HistoryRequest) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for HistoryRequest