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Improved BTCMarkets API support.

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This commit is contained in:
Adrian Gallagher
2015-11-24 22:14:44 +11:00
parent 8bfc14bc80
commit 8b0510baf9
1 changed files with 102 additions and 62 deletions
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164
btcmarkets.go
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@@ -2,8 +2,10 @@ package main
import (
"bytes"
"errors"
"fmt"
"log"
"net/url"
"strconv"
"time"
)
@@ -18,6 +20,7 @@ const (
BTCMARKETS_ORDER_OPEN = "/order/open"
BTCMARKETS_ORDER_TRADE_HISTORY = "/order/trade/history"
BTCMARKETS_ORDER_DETAIL = "/order/detail"
BTCMARKETS_SATOSHI_PER_BTC = 100000000
)
type BTCMarkets struct {
@@ -68,19 +71,20 @@ type BTCMarketsTradeResponse struct {
Fee float64 `json:"fee"`
}
type BTCMarketsOrderResponse struct {
ID float64 `json:"id"`
Currency string `json:"currency"`
Instrument string `json:"instrument"`
OrderSide string `json:"orderSide"`
OrderType string `json:"ordertype"`
CreationTime float64 `json:"creationTime"`
Status string `json:"status"`
ErrorMessage string `json:"errorMessage"`
Price float64 `json:"price"`
Volume float64 `json:"volume"`
OpenVolume float64 `json:"openVolume"`
ClientRequestId string `json:"clientRequestId"`
type BTCMarketsOrder struct {
ID int64 `json:"id"`
Currency string `json:"currency"`
Instrument string `json:"instrument"`
OrderSide string `json:"orderSide"`
OrderType string `json:"ordertype"`
CreationTime float64 `json:"creationTime"`
Status string `json:"status"`
ErrorMessage string `json:"errorMessage"`
Price float64 `json:"price"`
Volume float64 `json:"volume"`
OpenVolume float64 `json:"openVolume"`
ClientRequestId string `json:"clientRequestId"`
Trades []BTCMarketsTradeResponse `json:"trades"`
}
func (b *BTCMarkets) SetDefaults() {
@@ -174,15 +178,10 @@ func (b *BTCMarkets) GetOrderbook(symbol string) (BTCMarketsOrderbook, error) {
return orderbook, nil
}
func (b *BTCMarkets) GetTrades(symbol, since string) ([]BTCMarketsTrade, error) {
func (b *BTCMarkets) GetTrades(symbol string, values url.Values) ([]BTCMarketsTrade, error) {
trades := []BTCMarketsTrade{}
path := ""
if len(since) > 0 {
path = fmt.Sprintf("/market/%s/AUD/trades?since=%s", symbol, since)
} else {
path = fmt.Sprintf("/market/%s/AUD/trades", symbol)
}
err := SendHTTPGetRequest(BTCMARKETS_API_URL+path, true, &trades)
path := EncodeURLValues(fmt.Sprintf("%s/market/%s/AUD/trades", BTCMARKETS_API_URL, symbol), values)
err := SendHTTPGetRequest(path, true, &trades)
if err != nil {
return nil, err
}
@@ -202,17 +201,12 @@ func (b *BTCMarkets) Order(currency, instrument string, price, amount int64, ord
order := Order{}
order.Currency = currency
order.Instrument = instrument
order.Price = price
order.Volume = amount
order.Price = price * BTCMARKETS_SATOSHI_PER_BTC
order.Volume = amount * BTCMARKETS_SATOSHI_PER_BTC
order.OrderSide = orderSide
order.OrderType = orderType
order.ClientRequestId = clientReq
JSONPayload, err := JSONEncode(order)
if err != nil {
return 0, err
}
type Response struct {
Success bool `json:"success"`
ErrorCode int `json:"errorCode"`
@@ -222,7 +216,7 @@ func (b *BTCMarkets) Order(currency, instrument string, price, amount int64, ord
}
var resp Response
err = b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_CREATE, JSONPayload, &resp)
err := b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_CREATE, order, &resp)
if err != nil {
return 0, err
@@ -241,11 +235,6 @@ func (b *BTCMarkets) CancelOrder(orderID []int64) (bool, error) {
orders := CancelOrder{}
orders.OrderIDs = append(orders.OrderIDs, orderID...)
JSONPayload, err := JSONEncode(orders)
if err != nil {
return false, err
}
type Response struct {
Success bool `json:"success"`
ErrorCode int `json:"errorCode"`
@@ -260,7 +249,7 @@ func (b *BTCMarkets) CancelOrder(orderID []int64) (bool, error) {
}
var resp Response
err = b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_CANCEL, JSONPayload, &resp)
err := b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_CANCEL, orders, &resp)
if err != nil {
return false, err
@@ -288,72 +277,123 @@ func (b *BTCMarkets) CancelOrder(orderID []int64) (bool, error) {
}
}
func (b *BTCMarkets) GetOrders(currency, instrument string, limit, since int64, historic bool) {
func (b *BTCMarkets) GetOrders(currency, instrument string, limit, since int64, historic bool) ([]BTCMarketsOrder, error) {
request := make(map[string]interface{})
request["currency"] = currency
request["instrument"] = instrument
request["limit"] = limit
request["since"] = since
JSONPayload, err := JSONEncode(request)
if err != nil {
log.Println(err)
return
}
path := BTCMARKETS_ORDER_OPEN
if historic {
path = BTCMARKETS_ORDER_HISTORY
}
err = b.SendAuthenticatedRequest("POST", path, JSONPayload, nil)
type response struct {
Success bool `json:"success"`
ErrorCode int `json:"errorCode"`
ErrorMessage string `json:"errorMessage"`
Orders []BTCMarketsOrder `json:"orders"`
}
resp := response{}
err := b.SendAuthenticatedRequest("POST", path, request, &resp)
if err != nil {
log.Println(err)
return nil, err
}
if !resp.Success {
return nil, errors.New(resp.ErrorMessage)
}
for i := range resp.Orders {
resp.Orders[i].Price = resp.Orders[i].Price / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].OpenVolume = resp.Orders[i].OpenVolume / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Volume = resp.Orders[i].Volume / BTCMARKETS_SATOSHI_PER_BTC
for x := range resp.Orders[i].Trades {
resp.Orders[i].Trades[x].Fee = resp.Orders[i].Trades[x].Fee / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Trades[x].Price = resp.Orders[i].Trades[x].Price / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Trades[x].Volume = resp.Orders[i].Trades[x].Volume / BTCMARKETS_SATOSHI_PER_BTC
}
}
return resp.Orders, nil
}
func (b *BTCMarkets) GetOrderDetail(orderID []int64) {
func (b *BTCMarkets) GetOrderDetail(orderID []int64) ([]BTCMarketsOrder, error) {
type OrderDetail struct {
OrderIDs []int64 `json:"orderIds"`
}
orders := OrderDetail{}
orders.OrderIDs = append(orders.OrderIDs, orderID...)
JSONPayload, err := JSONEncode(orders)
if err != nil {
log.Println(err)
return
type response struct {
Success bool `json:"success"`
ErrorCode int `json:"errorCode"`
ErrorMessage string `json:"errorMessage"`
Orders []BTCMarketsOrder `json:"orders"`
}
err = b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_DETAIL, JSONPayload, nil)
resp := response{}
err := b.SendAuthenticatedRequest("POST", BTCMARKETS_ORDER_DETAIL, orders, &resp)
if err != nil {
log.Println(err)
return nil, err
}
if !resp.Success {
return nil, errors.New(resp.ErrorMessage)
}
for i := range resp.Orders {
resp.Orders[i].Price = resp.Orders[i].Price / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].OpenVolume = resp.Orders[i].OpenVolume / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Volume = resp.Orders[i].Volume / BTCMARKETS_SATOSHI_PER_BTC
for x := range resp.Orders[i].Trades {
resp.Orders[i].Trades[x].Fee = resp.Orders[i].Trades[x].Fee / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Trades[x].Price = resp.Orders[i].Trades[x].Price / BTCMARKETS_SATOSHI_PER_BTC
resp.Orders[i].Trades[x].Volume = resp.Orders[i].Trades[x].Volume / BTCMARKETS_SATOSHI_PER_BTC
}
}
return resp.Orders, nil
}
func (b *BTCMarkets) GetAccountBalance() {
type Balance struct {
Balance float64 `json:"balance"`
PendingFunds float64 `json:"pendingFunds"`
Currency string `json:"currency"`
}
type BTCMarketsAccountBalance struct {
Balance float64 `json:"balance"`
PendingFunds float64 `json:"pendingFunds"`
Currency string `json:"currency"`
}
balance := []Balance{}
func (b *BTCMarkets) GetAccountBalance() ([]BTCMarketsAccountBalance, error) {
balance := []BTCMarketsAccountBalance{}
err := b.SendAuthenticatedRequest("GET", BTCMARKETS_ACCOUNT_BALANCE, nil, &balance)
if err != nil {
log.Println(err)
return nil, err
}
for i := range balance {
if balance[i].Currency == "LTC" || balance[i].Currency == "BTC" {
balance[i].Balance = balance[i].Balance / BTCMARKETS_SATOSHI_PER_BTC
balance[i].PendingFunds = balance[i].PendingFunds / BTCMARKETS_SATOSHI_PER_BTC
}
}
return balance, nil
}
func (b *BTCMarkets) SendAuthenticatedRequest(reqType, path string, data []byte, result interface{}) error {
func (b *BTCMarkets) SendAuthenticatedRequest(reqType, path string, data interface{}, result interface{}) (err error) {
nonce := strconv.FormatInt(time.Now().UnixNano(), 10)[0:13]
request := ""
payload := []byte("")
if data != nil {
request = path + "\n" + nonce + "\n" + string(data)
payload, err = JSONEncode(data)
if err != nil {
return err
}
request = path + "\n" + nonce + "\n" + string(payload)
} else {
request = path + "\n" + nonce + "\n"
}
@@ -372,7 +412,7 @@ func (b *BTCMarkets) SendAuthenticatedRequest(reqType, path string, data []byte,
headers["timestamp"] = nonce
headers["signature"] = Base64Encode(hmac)
resp, err := SendHTTPRequest(reqType, BTCMARKETS_API_URL+path, headers, bytes.NewBuffer(data))
resp, err := SendHTTPRequest(reqType, BTCMARKETS_API_URL+path, headers, bytes.NewBuffer(payload))
if err != nil {
return err