rust #10
@ -1,4 +1,6 @@
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use crate::currency::SymbolPair;
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use crate::BoxError;
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use std::fmt::Display;
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/***************
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* Prices
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@ -62,6 +64,79 @@ pub enum OrderKind {
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ExchangeIoc,
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}
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#[derive(Serialize, Clone)]
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pub struct OrderForm {
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/// Order Type: LIMIT, EXCHANGE LIMIT, MARKET, EXCHANGE MARKET,
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/// STOP, EXCHANGE STOP, STOP LIMIT, EXCHANGE STOP LIMIT,
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/// TRAILING STOP, EXCHANGE TRAILING STOP, FOK,
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/// EXCHANGE FOK, IOC, EXCHANGE IOC
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kind: OrderKind,
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/// Symbol for desired pair
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symbol: SymbolPair,
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/// Price of order
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price: String,
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/// Amount of order (positive for buy, negative for sell)
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amount: String,
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/// Set the leverage for a derivative order, supported by derivative symbol orders only.
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/// The value should be between 1 and 100 inclusive.
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/// The field is optional, if omitted the default leverage value of 10 will be used.
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leverage: Option<u32>,
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/// The trailing price for a trailing stop order
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price_trailing: Option<String>,
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/// Auxiliary Limit price (for STOP LIMIT)
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price_aux_limit: Option<String>,
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/// Time-In-Force: datetime for automatic order cancellation (ie. 2020-01-01 10:45:23) )
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tif: Option<String>,
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}
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impl OrderForm {
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pub fn new(symbol: &SymbolPair, price: f64, amount: f64, kind: OrderKind) -> Self {
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OrderForm {
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kind,
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symbol: symbol.clone(),
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price: price.to_string(),
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amount: amount.to_string(),
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leverage: None,
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price_trailing: None,
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price_aux_limit: None,
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tif: None,
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}
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}
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pub fn with_leverage(mut self, leverage: u32) -> Self {
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self.leverage = Some(leverage);
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self
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}
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pub fn with_price_trailing(mut self, trailing: f64) -> Result<Self, BoxError> {
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match self.kind {
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OrderKind::TrailingStop => {
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self.price_trailing = Some(trailing.to_string());
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Ok(self)
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}
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_ => Err("Invalid order type.".into()),
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}
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}
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pub fn price_aux_limit(mut self, limit: f64) -> Result<Self, BoxError> {
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match self.kind {
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OrderKind::StopLimit | OrderKind::ExchangeStopLimit => {
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self.price_aux_limit = Some(limit.to_string());
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Ok(self)
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}
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_ => Err("Invalid order type.".into()),
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}
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}
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pub fn with_tif<T: TimeZone>(mut self, tif: DateTime<T>) -> Self
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where
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T::Offset: Display,
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{
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self.tif = Some(tif.format("%Y-%m-%d %H:%M:%S").to_string());
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self
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}
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}
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/***************
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* Positions
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***************/
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