Fix bugs with unmarshaling on ZB and OKGroup (#290)

* Replace nonce increment with mutex to atomic incrementation
* Fix ZB order unmarshaling
* Fix CancelSpotOrderResponse unmarshaling on OKGroup

exchanges/nonce/nonce.go

@@ -3,14 +3,14 @@ package nonce
 import (
 	"strconv"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
 // Nonce struct holds the nonce value
 type Nonce struct {
 	// Standard nonce
-	n   int64
-	mtx sync.Mutex
+	n int64
 	// Hash table exclusive exchange specific nonce values
 	boundedCall map[string]int64
 	boundedMtx  sync.Mutex
@@ -18,39 +18,28 @@ type Nonce struct {
 
 // Inc increments the nonce value
 func (n *Nonce) Inc() {
-	n.mtx.Lock()
-	n.n++
-	n.mtx.Unlock()
+	atomic.AddInt64(&n.n, 1)
 }
 
 // Get retrives the nonce value
 func (n *Nonce) Get() int64 {
-	n.mtx.Lock()
-	defer n.mtx.Unlock()
-	return n.n
+	return atomic.LoadInt64(&n.n)
 }
 
 // GetInc increments and returns the value of the nonce
 func (n *Nonce) GetInc() int64 {
-	n.mtx.Lock()
-	defer n.mtx.Unlock()
-	n.n++
-	return n.n
+	n.Inc()
+	return n.Get()
 }
 
 // Set sets the nonce value
 func (n *Nonce) Set(val int64) {
-	n.mtx.Lock()
-	n.n = val
-	n.mtx.Unlock()
+	atomic.StoreInt64(&n.n, val)
 }
 
 // String returns a string version of the nonce
 func (n *Nonce) String() string {
-	n.mtx.Lock()
-	result := strconv.FormatInt(n.n, 10)
-	n.mtx.Unlock()
-	return result
+	return strconv.FormatInt(n.Get(), 10)
 }
 
 // Value is a return type for GetValue

exchanges/okgroup/okgroup_types.go

@@ -183,7 +183,7 @@ type CancelSpotOrderRequest struct {
 // CancelSpotOrderResponse response data for CancelSpotOrder
 type CancelSpotOrderResponse struct {
 	ClientOID string `json:"client_oid"`
-	OrderID   int64  `json:"order_id"`
+	OrderID   int64  `json:"order_id,string"`
 	Result    bool   `json:"result"`
 }
 

exchanges/zb/zb_types.go

@@ -36,13 +36,13 @@ type AccountsBaseResponse struct {
 // Order is the order details for retrieving all orders
 type Order struct {
 	Currency    string  `json:"currency"`
-	ID          int64   `json:"id"`
-	Price       int     `json:"price"`
+	ID          int64   `json:"id,string"`
+	Price       float64 `json:"price"`
 	Status      int     `json:"status"`
 	TotalAmount float64 `json:"total_amount"`
 	TradeAmount int     `json:"trade_amount"`
 	TradeDate   int     `json:"trade_date"`
-	TradeMoney  int     `json:"trade_money"`
+	TradeMoney  float64 `json:"trade_money"`
 	Type        int64   `json:"type"`
 }