From c527cd6fda37ead7ecf53b364900bda8310e199f Mon Sep 17 00:00:00 2001
From: if1live <libsora25@gmail.com>
Date: Mon, 26 Jun 2017 21:25:33 +0900
Subject: [PATCH] implement returnLendingHistory

---
 exchanges/poloniex/poloniex.go       | 21 +++++++++++++++++++++
 exchanges/poloniex/poloniex_types.go | 13 +++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/exchanges/poloniex/poloniex.go b/exchanges/poloniex/poloniex.go
index 0cb695af..0db968a2 100644
--- a/exchanges/poloniex/poloniex.go
+++ b/exchanges/poloniex/poloniex.go
@@ -42,6 +42,7 @@ const (
 	POLONIEX_CANCEL_LOAN_OFFER      = "cancelLoanOffer"
 	POLONIEX_OPEN_LOAN_OFFERS       = "returnOpenLoanOffers"
 	POLONIEX_ACTIVE_LOANS           = "returnActiveLoans"
+	POLONIEX_LENDING_HISTORY        = "returnLendingHistory"
 	POLONIEX_AUTO_RENEW             = "toggleAutoRenew"
 )
 
@@ -705,6 +706,26 @@ func (p *Poloniex) GetActiveLoans() (PoloniexActiveLoans, error) {
 	return result, nil
 }
 
+func (p *Poloniex) GetLendingHistory(start, end string) ([]PoloniexLendingHistory, error) {
+	vals := url.Values{}
+
+	if start != "" {
+		vals.Set("start", start)
+	}
+
+	if end != "" {
+		vals.Set("end", end)
+	}
+
+	resp := []PoloniexLendingHistory{}
+	err := p.SendAuthenticatedHTTPRequest("POST", POLONIEX_LENDING_HISTORY, vals, &resp)
+
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
 func (p *Poloniex) ToggleAutoRenew(orderNumber int64) (bool, error) {
 	values := url.Values{}
 	values.Set("orderNumber", strconv.FormatInt(orderNumber, 10))
diff --git a/exchanges/poloniex/poloniex_types.go b/exchanges/poloniex/poloniex_types.go
index 76c6e71c..013ba5d1 100644
--- a/exchanges/poloniex/poloniex_types.go
+++ b/exchanges/poloniex/poloniex_types.go
@@ -218,3 +218,16 @@ type PoloniexActiveLoans struct {
 	Provided []PoloniexLoanOffer `json:"provided"`
 	Used     []PoloniexLoanOffer `json:"used"`
 }
+
+type PoloniexLendingHistory struct {
+	ID       int64   `json:"id"`
+	Currency string  `json:"currency"`
+	Rate     float64 `json:"rate,string"`
+	Amount   float64 `json:"amount,string"`
+	Duration float64 `json:"duration,string"`
+	Interest float64 `json:"interest,string"`
+	Fee      float64 `json:"fee,string"`
+	Earned   float64 `json:"earned,string"`
+	Open     string  `json:"open"`
+	Close    string  `json:"close"`
+}