Files
gocryptotrader/exchanges/coinut/coinut.go
2017-07-31 11:42:56 +10:00

325 lines
8.7 KiB
Go

package coinut
import (
"bytes"
"errors"
"log"
"time"
"github.com/gorilla/websocket"
"github.com/thrasher-/gocryptotrader/common"
"github.com/thrasher-/gocryptotrader/config"
"github.com/thrasher-/gocryptotrader/exchanges"
)
const (
COINUT_API_URL = "https://api.coinut.com"
COINUT_API_VERISON = "1"
COINUT_INSTRUMENTS = "inst_list"
COINUT_TICKER = "inst_tick"
COINUT_ORDERBOOK = "inst_order_book"
COINUT_TRADES = "inst_trade"
COINUT_BALANCE = "user_balance"
COINUT_ORDER = "new_order"
COINUT_ORDERS = "new_orders"
COINUT_ORDERS_OPEN = "user_open_orders"
COINUT_ORDER_CANCEL = "cancel_order"
COINUT_ORDERS_CANCEL = "cancel_orders"
COINUT_TRADE_HISTORY = "trade_history"
COINUT_INDEX_TICKER = "index_tick"
COINUT_OPTION_CHAIN = "option_chain"
COINUT_POSITION_HISTORY = "position_history"
COINUT_POSITION_OPEN = "user_open_positions"
)
type COINUT struct {
exchange.ExchangeBase
WebsocketConn *websocket.Conn
InstrumentMap map[string]int
}
func (c *COINUT) SetDefaults() {
c.Name = "COINUT"
c.Enabled = false
c.Verbose = false
c.TakerFee = 0.1 //spot
c.MakerFee = 0
c.Verbose = false
c.Websocket = false
c.RESTPollingDelay = 10
}
func (c *COINUT) Setup(exch config.ExchangeConfig) {
if !exch.Enabled {
c.SetEnabled(false)
} else {
c.Enabled = true
c.AuthenticatedAPISupport = exch.AuthenticatedAPISupport
c.SetAPIKeys(exch.APIKey, exch.APISecret, exch.ClientID, true)
c.RESTPollingDelay = exch.RESTPollingDelay
c.Verbose = exch.Verbose
c.Websocket = exch.Websocket
c.BaseCurrencies = common.SplitStrings(exch.BaseCurrencies, ",")
c.AvailablePairs = common.SplitStrings(exch.AvailablePairs, ",")
c.EnabledPairs = common.SplitStrings(exch.EnabledPairs, ",")
}
}
func (c *COINUT) GetInstruments() (CoinutInstruments, error) {
var result CoinutInstruments
params := make(map[string]interface{})
params["sec_type"] = "SPOT"
err := c.SendAuthenticatedHTTPRequest(COINUT_INSTRUMENTS, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetInstrumentTicker(instrumentID int) (CoinutTicker, error) {
var result CoinutTicker
params := make(map[string]interface{})
params["inst_id"] = instrumentID
err := c.SendAuthenticatedHTTPRequest(COINUT_TICKER, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetInstrumentOrderbook(instrumentID, limit int) (CoinutOrderbook, error) {
var result CoinutOrderbook
params := make(map[string]interface{})
params["inst_id"] = instrumentID
if limit > 0 {
params["top_n"] = limit
}
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDERBOOK, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetTrades(instrumentID int) (CoinutTrades, error) {
var result CoinutTrades
params := make(map[string]interface{})
params["inst_id"] = instrumentID
err := c.SendAuthenticatedHTTPRequest(COINUT_TRADES, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetUserBalance() (CoinutUserBalance, error) {
result := CoinutUserBalance{}
err := c.SendAuthenticatedHTTPRequest(COINUT_BALANCE, nil, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) NewOrder(instrumentID int, quantity, price float64, buy bool, orderID uint32) (interface{}, error) {
var result interface{}
params := make(map[string]interface{})
params["inst_id"] = instrumentID
params["price"] = price
params["qty"] = quantity
params["side"] = "BUY"
if !buy {
params["side"] = "SELL"
}
params["client_ord_id"] = orderID
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDER, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) NewOrders(orders []CoinutOrder) ([]CoinutOrdersBase, error) {
var result CoinutOrdersResponse
params := make(map[string]interface{})
params["orders"] = orders
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDERS, params, &result.Data)
if err != nil {
return nil, err
}
return result.Data, nil
}
func (c *COINUT) GetOpenOrders(instrumentID int) ([]CoinutOrdersResponse, error) {
var result []CoinutOrdersResponse
params := make(map[string]interface{})
params["inst_id"] = instrumentID
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDERS_OPEN, params, &result)
if err != nil {
return nil, err
}
return result, nil
}
func (c *COINUT) CancelOrder(instrumentID, orderID int) (bool, error) {
var result CoinutGenericResponse
params := make(map[string]interface{})
params["inst_id"] = instrumentID
params["order_id"] = orderID
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDERS_CANCEL, params, &result)
if err != nil {
return false, err
}
return true, nil
}
func (c *COINUT) CancelOrders(orders []CoinutCancelOrders) (CoinutCancelOrdersResponse, error) {
var result CoinutCancelOrdersResponse
params := make(map[string]interface{})
params["entries"] = orders
err := c.SendAuthenticatedHTTPRequest(COINUT_ORDERS_CANCEL, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetTradeHistory(instrumentID, start, limit int) (CoinutTradeHistory, error) {
var result CoinutTradeHistory
params := make(map[string]interface{})
params["inst_id"] = instrumentID
if start >= 0 && start <= 100 {
params["start"] = start
}
if limit >= 0 && start <= 100 {
params["limit"] = limit
}
err := c.SendAuthenticatedHTTPRequest(COINUT_TRADE_HISTORY, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetIndexTicker(asset string) (CoinutIndexTicker, error) {
var result CoinutIndexTicker
params := make(map[string]interface{})
params["asset"] = asset
err := c.SendAuthenticatedHTTPRequest(COINUT_INDEX_TICKER, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetDerivativeInstruments(secType string) (interface{}, error) {
var result interface{} //to-do
params := make(map[string]interface{})
params["sec_type"] = secType
err := c.SendAuthenticatedHTTPRequest(COINUT_INSTRUMENTS, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetOptionChain(asset, secType string, expiry int64) (CoinutOptionChainResponse, error) {
var result CoinutOptionChainResponse
params := make(map[string]interface{})
params["asset"] = asset
params["sec_type"] = secType
err := c.SendAuthenticatedHTTPRequest(COINUT_OPTION_CHAIN, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetPositionHistory(secType string, start, limit int) (CoinutPositionHistory, error) {
var result CoinutPositionHistory
params := make(map[string]interface{})
params["sec_type"] = secType
if start >= 0 {
params["start"] = start
}
if limit >= 0 {
params["limit"] = limit
}
err := c.SendAuthenticatedHTTPRequest(COINUT_POSITION_HISTORY, params, &result)
if err != nil {
return result, err
}
return result, nil
}
func (c *COINUT) GetOpenPosition(instrumentID int) ([]CoinutOpenPosition, error) {
type Response struct {
Positions []CoinutOpenPosition `json:"positions"`
}
var result Response
params := make(map[string]interface{})
params["inst_id"] = instrumentID
err := c.SendAuthenticatedHTTPRequest(COINUT_POSITION_OPEN, params, &result)
if err != nil {
return result.Positions, err
}
return result.Positions, nil
}
//to-do: user position update via websocket
func (c *COINUT) SendAuthenticatedHTTPRequest(apiRequest string, params map[string]interface{}, result interface{}) (err error) {
timestamp := time.Now().Unix()
payload := []byte("")
if params == nil {
params = map[string]interface{}{}
}
params["nonce"] = timestamp
params["request"] = apiRequest
payload, err = common.JSONEncode(params)
if err != nil {
return errors.New("SendAuthenticatedHTTPRequest: Unable to JSON request")
}
if c.Verbose {
log.Printf("Request JSON: %s\n", payload)
}
hmac := common.GetHMAC(common.HashSHA256, []byte(payload), []byte(c.APIKey))
headers := make(map[string]string)
headers["X-USER"] = c.ClientID
headers["X-SIGNATURE"] = common.HexEncodeToString(hmac)
headers["Content-Type"] = "application/json"
resp, err := common.SendHTTPRequest("POST", COINUT_API_URL, headers, bytes.NewBuffer(payload))
if c.Verbose {
log.Printf("Recieved raw: \n%s", resp)
}
genResp := CoinutGenericResponse{}
err = common.JSONDecode([]byte(resp), &genResp)
if err != nil {
return errors.New("Unable to JSON Unmarshal generic response.")
}
if genResp.Status[0] != "OK" {
return errors.New("Status is not OK.")
}
err = common.JSONDecode([]byte(resp), &result)
if err != nil {
return errors.New("Unable to JSON Unmarshal response.")
}
return nil
}