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PoloniexMarginTrading.go
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PoloniexMarginTrading.go
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package poloniex
import (
"encoding/json"
"errors"
. "github.com/nntaoli-project/goex"
"log"
"net/url"
)
type PoloniexGenericResponse struct {
Success int `json:"success"`
Error string `json:"error"`
}
type PoloniexMarginPosition struct {
Amount float64 `json:"amount,string"`
Total float64 `json:"total,string"`
BasePrice float64 `json:"basePrice,string"`
LiquidiationPrice float64 `json:"liquidiationPrice"`
ProfitLoss float64 `json:"pl,string"`
LendingFees float64 `json:"lendingFees,string"`
Type string `json:"type"`
}
func (poloniex *Poloniex) MarginLimitBuy(amount, price string, currency CurrencyPair) (*Order, error) {
return poloniex.placeLimitOrder("marginBuy", amount, price, currency)
}
func (poloniex *Poloniex) MarginLimitSell(amount, price string, currency CurrencyPair) (*Order, error) {
return poloniex.placeLimitOrder("marginSell", amount, price, currency)
}
func (poloniex *Poloniex) GetMarginPosition(currency CurrencyPair) (*PoloniexMarginPosition, error) {
values := url.Values{}
values.Set("command", "getMarginPosition")
values.Set("currencyPair", currency.AdaptUsdToUsdt().Reverse().ToSymbol("_"))
result := PoloniexMarginPosition{}
err := poloniex.sendAuthenticatedRequest(values, &result)
if err != nil {
return nil, err
}
return &result, nil
}
func (poloniex *Poloniex) CloseMarginPosition(currency CurrencyPair) (bool, error) {
values := url.Values{}
values.Set("command", "closeMarginPosition")
values.Set("currencyPair", currency.AdaptUsdToUsdt().Reverse().ToSymbol("_"))
result := PoloniexGenericResponse{}
err := poloniex.sendAuthenticatedRequest(values, &result)
if err != nil {
return false, err
}
if result.Success == 0 {
return false, errors.New(result.Error)
}
return true, nil
}
func (poloniex *Poloniex) sendAuthenticatedRequest(values url.Values, result interface{}) error {
sign, _ := poloniex.buildPostForm(&values)
headers := map[string]string{
"Key": poloniex.accessKey,
"Sign": sign}
resp, err := HttpPostForm2(poloniex.client, TRADE_API, values, headers)
if err != nil {
log.Println(err)
return err
}
err = json.Unmarshal(resp, &result)
if err != nil {
return errors.New("Unable to JSON Unmarshal response.")
}
return nil
}