forked from Akagi201/cryptotrader
/
binance.go
701 lines (571 loc) · 18.3 KB
/
binance.go
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// Package binance binance rest api
package binance
import (
"context"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
"github.com/Akagi201/cryptotrader/model"
"github.com/Akagi201/utilgo/enums"
"github.com/Akagi201/utilgo/signs"
log "github.com/sirupsen/logrus"
"github.com/spf13/cast"
"github.com/tidwall/gjson"
)
const (
RestHost = "www.binance.com"
ApiV1 = "v1"
ApiV3 = "v3"
)
// Kline intervals
// m -> minutes; h -> hours; d -> days; w -> weeks; M -> months
var (
Interval enums.Enum
Interval1m = Interval.Iota("1m")
Interval3m = Interval.Iota("3m")
Interval5m = Interval.Iota("5m")
Interval15m = Interval.Iota("15m")
Interval30m = Interval.Iota("30m")
Interval1h = Interval.Iota("1h")
Interval2h = Interval.Iota("2h")
Interval4h = Interval.Iota("4h")
Interval6h = Interval.Iota("6h")
Interval8h = Interval.Iota("8h")
Interval12h = Interval.Iota("12h")
Interval1d = Interval.Iota("1d")
Interval3d = Interval.Iota("3d")
Interval1w = Interval.Iota("1w")
Interval1M = Interval.Iota("1M")
)
// Order types
var (
OrderType enums.Enum
OrderLimit = OrderType.Iota("LIMIT")
OrderMarket = OrderType.Iota("MARKET")
)
// Order Side
var (
OrderSide enums.Enum
OrderBuy = OrderSide.Iota("BUY")
OrderSell = OrderSide.Iota("SELL")
)
// Time in force
var (
TimeInForce enums.Enum
GTC = TimeInForce.Iota("GTC")
IOC = TimeInForce.Iota("IOC")
)
// Client Binance client
type Client struct {
URL url.URL
HTTPClient *http.Client
AccessKey string
SecretKey string
}
// New creates a new Binance Client
func New(accessKey string, secretKey string) *Client {
u := url.URL{
Scheme: "https",
Host: RestHost,
Path: "/api/",
}
c := Client{
URL: u,
HTTPClient: &http.Client{},
AccessKey: accessKey,
SecretKey: secretKey,
}
return &c
}
func (c *Client) newRequest(ctx context.Context, method string, spath string, values url.Values, body io.Reader, version string) (*http.Request, error) {
u := c.URL
u.Path = path.Join(c.URL.Path, version, spath)
u.RawQuery = values.Encode()
log.Debugf("Request URL: %#v", u.String())
req, err := http.NewRequest(method, u.String(), body)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
return req, nil
}
func (c *Client) newPrivateRequest(ctx context.Context, method string, spath string, values url.Values, body io.Reader, recvWindow int64) (*http.Request, error) {
req, err := c.newRequest(ctx, method, spath, values, body, ApiV3)
if err != nil {
return nil, err
}
var bodyText string
if body != nil {
bodyBytes, _ := ioutil.ReadAll(body)
bodyText = string(bodyBytes)
} else {
bodyText = ""
}
//TODO: support body encode
_ = bodyText
if values == nil {
values = url.Values{}
}
timestamp := strconv.FormatInt(time.Now().Unix()*1000, 10)
values.Set("timestamp", timestamp)
if recvWindow != 0 {
values.Set("recvWindow", strconv.FormatInt(recvWindow, 10))
} else {
values.Set("recvWindow", "5000")
}
sign, _ := signs.GetSha256Sign(c.SecretKey, values.Encode())
values.Add("signature", sign)
req.Header.Set("X-MBX-APIKEY", c.AccessKey)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.URL.RawQuery = values.Encode()
return req, nil
}
func (c *Client) getResponse(req *http.Request) ([]byte, error) {
res, err := c.HTTPClient.Do(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
body, _ := ioutil.ReadAll(res.Body)
log.Errorf("body: %v", string(body))
return nil, errors.New(fmt.Sprintf("status code: %d", res.StatusCode))
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, err
}
return body, nil
}
// GetTicker 24hr ticker price change statistics, for GET /api/v1/ticker/24hr
func (c *Client) GetTicker(ctx context.Context, quote string, base string) (*model.Ticker, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
req, err := c.newRequest(ctx, "GET", "ticker/24hr", v, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
buyRes := gjson.GetBytes(body, "bidPrice").String()
buy, err := strconv.ParseFloat(buyRes, 64)
if err != nil {
return nil, err
}
sellRes := gjson.GetBytes(body, "askPrice").String()
sell, err := strconv.ParseFloat(sellRes, 64)
if err != nil {
return nil, err
}
lastRes := gjson.GetBytes(body, "lastPrice").String()
last, err := strconv.ParseFloat(lastRes, 64)
if err != nil {
return nil, err
}
lowRes := gjson.GetBytes(body, "lowPrice").String()
low, err := strconv.ParseFloat(lowRes, 64)
if err != nil {
return nil, err
}
highRes := gjson.GetBytes(body, "highPrice").String()
high, err := strconv.ParseFloat(highRes, 64)
if err != nil {
return nil, err
}
volRes := gjson.GetBytes(body, "volume").String()
vol, err := strconv.ParseFloat(volRes, 64)
if err != nil {
return nil, err
}
return &model.Ticker{
Buy: buy,
Sell: sell,
Last: last,
Low: low,
High: high,
Vol: vol,
Raw: string(body),
}, nil
}
// Ping Test connectivity to the Rest API, for GET /api/v1/ping
func (c *Client) Ping(ctx context.Context) error {
req, err := c.newRequest(ctx, "GET", "ping", nil, nil, ApiV1)
if err != nil {
return err
}
_, err = c.getResponse(req)
if err != nil {
return err
}
return nil
}
// GetTime Check server time, for GET /api/v1/time
func (c *Client) GetTime(ctx context.Context) (*time.Time, error) {
req, err := c.newRequest(ctx, "GET", "time", nil, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
serverTime := gjson.GetBytes(body, "serverTime").Int()
t := time.Unix(0, serverTime*int64(time.Millisecond))
return &t, nil
}
// GetDepth Order book, for GET /api/v1/depth
func (c *Client) GetDepth(ctx context.Context, quote string, base string, limit int64) (*model.OrderBook, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
if limit != 0 {
v.Set("limit", strconv.FormatInt(limit, 10))
}
req, err := c.newRequest(ctx, "GET", "depth", v, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var order model.MarketOrder
var orderBook model.OrderBook
gjson.GetBytes(body, "bids").ForEach(func(key, value gjson.Result) bool {
order.Price = cast.ToFloat64(value.Array()[0].String())
order.Amount = cast.ToFloat64(value.Array()[1].String())
orderBook.Bids = append(orderBook.Bids, order)
return true // keep iterating
})
gjson.GetBytes(body, "asks").ForEach(func(key, value gjson.Result) bool {
order.Price = cast.ToFloat64(value.Array()[0].String())
order.Amount = cast.ToFloat64(value.Array()[1].String())
orderBook.Asks = append(orderBook.Asks, order)
return true // keep iterating
})
//t := gjson.GetBytes(body, "lastUpdateId").Int()
//orderBook.Time = time.Unix(0, t*int64(time.Millisecond))
orderBook.Raw = string(body)
return &orderBook, nil
}
// GetTickers Symbols price ticker, for GET /api/v1/ticker/allPrices
func (c *Client) GetTickers(ctx context.Context) ([]model.SimpleTicker, error) {
req, err := c.newRequest(ctx, "GET", "ticker/allPrices", nil, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var simpleTicker model.SimpleTicker
var simpleTickers []model.SimpleTicker
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
simpleTicker.Symbol = value.Get("symbol").String()
simpleTicker.Price = cast.ToFloat64(value.Get("price").String())
simpleTickers = append(simpleTickers, simpleTicker)
return true // keep iterating
})
return simpleTickers, nil
}
// GetTrades Compressed/Aggregate trades list, for GET /api/v1/aggTrades
func (c *Client) GetTrades(ctx context.Context, quote string, base string, fromID int64, startTime int64, endTime int64, limit int64) ([]model.Trade, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
if fromID != 0 {
v.Set("fromId", strconv.FormatInt(fromID, 10))
}
if startTime != 0 {
v.Set("startTime", strconv.FormatInt(startTime, 10))
}
if endTime != 0 {
v.Set("startTime", strconv.FormatInt(endTime, 10))
}
if limit != 0 {
v.Set("limit", strconv.FormatInt(limit, 10))
}
req, err := c.newRequest(ctx, "GET", "aggTrades", v, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var trade model.Trade
var trades []model.Trade
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
trade.ID = value.Get("a").Int()
trade.Price = cast.ToFloat64(value.Get("p").String())
trade.Amount = cast.ToFloat64(value.Get("q").String())
trade.Time = cast.ToTime(value.Get("T").Int() / 1000)
trade.Raw = value.String()
trades = append(trades, trade)
return true // keep iterating
})
return trades, nil
}
// GetRecords for Kline/candlesticks, for GET /api/v1/ticker/allPrices
func (c *Client) GetRecords(ctx context.Context, quote string, base string, interval string, startTime int64, endTime int64, limit int64) ([]model.Record, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
v.Set("interval", interval)
if startTime != 0 {
v.Set("startTime", strconv.FormatInt(startTime, 10))
}
if endTime != 0 {
v.Set("startTime", strconv.FormatInt(endTime, 10))
}
if limit != 0 {
v.Set("limit", strconv.FormatInt(limit, 10))
}
req, err := c.newRequest(ctx, "GET", "klines", v, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var record model.Record
var records []model.Record
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
record.Open = cast.ToFloat64(value.Array()[1].String())
record.High = cast.ToFloat64(value.Array()[2].String())
record.Low = cast.ToFloat64(value.Array()[3].String())
record.Close = cast.ToFloat64(value.Array()[4].String())
record.Vol = cast.ToFloat64(value.Array()[5].String())
record.Time = cast.ToTime(value.Array()[0].Int() / 1000)
record.Raw = value.String()
records = append(records, record)
return true // keep iterating
})
return records, nil
}
// GetBookTickers Symbols order book ticker, for GET /api/v1/ticker/allBookTickers
func (c *Client) GetBookTickers(ctx context.Context) ([]model.BookTicker, error) {
req, err := c.newRequest(ctx, "GET", "ticker/allBookTickers", nil, nil, ApiV1)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var bookTicker model.BookTicker
var bookTickers []model.BookTicker
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
bookTicker.Symbol = value.Get("symbol").String()
bookTicker.BidPrice = cast.ToFloat64(value.Get("bidPrice").String())
bookTicker.BidAmount = cast.ToFloat64(value.Get("bidQty").String())
bookTicker.AskPrice = cast.ToFloat64(value.Get("askPrice").String())
bookTicker.AskAmount = cast.ToFloat64(value.Get("askQty").String())
bookTickers = append(bookTickers, bookTicker)
return true // keep iterating
})
return bookTickers, nil
}
// GetAccount Account information (SIGNED), for GET /api/v3/account
func (c *Client) GetAccount(ctx context.Context, recvWindow int64) ([]model.Balance, error) {
req, err := c.newPrivateRequest(ctx, "GET", "account", nil, nil, recvWindow)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var balance model.Balance
var balances []model.Balance
gjson.GetBytes(body, "balances").ForEach(func(key, value gjson.Result) bool {
balance.Currency = value.Get("asset").String()
balance.Free = cast.ToFloat64(value.Get("free").String())
balance.Frozen = cast.ToFloat64(value.Get("locked").String())
balances = append(balances, balance)
return true // keep iterating
})
return balances, nil
}
// Trade Send in a new order, for POST /api/v3/order
func (c *Client) Trade(ctx context.Context, quote string, base string, side string, typ string, timeInForce string, quantity float64, price float64, stopPrice float64, icebergQty float64, recvWindow int64) (int64, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
v.Set("side", side)
v.Set("type", typ)
v.Set("timeInForce", timeInForce)
v.Set("quantity", cast.ToString(quantity))
v.Set("price", cast.ToString(price))
if stopPrice != 0 {
v.Set("stopPrice", cast.ToString(stopPrice))
}
if icebergQty != 0 {
v.Set("icebergQty", cast.ToString(icebergQty))
}
req, err := c.newPrivateRequest(ctx, "POST", "order/test", v, nil, recvWindow)
if err != nil {
return 0, err
}
body, err := c.getResponse(req)
if err != nil {
return 0, err
}
log.Debugf("Response body: %v", string(body))
return gjson.GetBytes(body, "orderId").Int(), nil
}
// GetOrder Check an order's status, for GET /api/v3/order
func (c *Client) GetOrder(ctx context.Context, quote string, base string, orderID int64, recvWindow int64) (*model.Order, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
v.Set("orderId", cast.ToString(orderID))
req, err := c.newPrivateRequest(ctx, "GET", "order", v, nil, recvWindow)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var order model.Order
order.ID = gjson.GetBytes(body, "orderId").Int()
order.Amount = cast.ToFloat64(gjson.GetBytes(body, "origQty").String())
order.DealAmount = cast.ToFloat64(gjson.GetBytes(body, "executedQty").String())
order.Price = cast.ToFloat64(gjson.GetBytes(body, "price").String())
order.Status = gjson.GetBytes(body, "status").String()
order.Type = gjson.GetBytes(body, "type").String()
order.Side = gjson.GetBytes(body, "side").String()
order.Raw = string(body)
return &order, nil
}
// CancelOrder Cancel an active orderf for DELETE /api/v3/order
func (c *Client) CancelOrder(ctx context.Context, quote string, base string, orderID int64, recvWindow int64) error {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
v.Set("orderId", cast.ToString(orderID))
req, err := c.newPrivateRequest(ctx, "DELETE", "order", v, nil, recvWindow)
if err != nil {
return err
}
body, err := c.getResponse(req)
if err != nil {
return err
}
log.Debugf("Response body: %v", string(body))
return nil
}
// GetOrders Get all open orders on a symbol, for GET /api/v3/openOrders
func (c *Client) GetOrders(ctx context.Context, quote string, base string, recvWindow int64) ([]model.Order, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
req, err := c.newPrivateRequest(ctx, "GET", "openOrders", v, nil, recvWindow)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var order model.Order
var orders []model.Order
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
order.ID = value.Get("orderId").Int()
order.Amount = cast.ToFloat64(value.Get("origQty").String())
order.DealAmount = cast.ToFloat64(value.Get("executedQty").String())
order.Price = cast.ToFloat64(value.Get("price").String())
order.Status = value.Get("status").String()
order.Type = value.Get("type").String()
order.Side = value.Get("side").String()
order.Raw = value.String()
orders = append(orders, order)
return true // keep iterating
})
return orders, nil
}
// GetAllOrders Get all account orders; active, canceled, or filled, for GET /api/v3/allOrders
func (c *Client) GetAllOrders(ctx context.Context, quote string, base string, orderID int64, limit int64, recvWindow int64) ([]model.Order, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
if orderID != 0 {
v.Set("orderId", cast.ToString(orderID))
}
if limit != 0 {
v.Set("limit", cast.ToString(limit))
}
req, err := c.newPrivateRequest(ctx, "GET", "allOrders", v, nil, recvWindow)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var order model.Order
var orders []model.Order
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
order.ID = value.Get("orderId").Int()
order.Amount = cast.ToFloat64(value.Get("origQty").String())
order.DealAmount = cast.ToFloat64(value.Get("executedQty").String())
order.Price = cast.ToFloat64(value.Get("price").String())
order.Status = value.Get("status").String()
order.Type = value.Get("type").String()
order.Side = value.Get("side").String()
order.Raw = value.String()
orders = append(orders, order)
return true // keep iterating
})
return orders, nil
}
// GetMyTrades Get trades for a specific account and symbol, for GET /api/v3/myTrades
func (c *Client) GetMyTrades(ctx context.Context, quote string, base string, fromID int64, limit int64, recvWindow int64) ([]model.Trade, error) {
v := url.Values{}
v.Set("symbol", strings.ToUpper(quote)+strings.ToUpper(base))
if fromID != 0 {
v.Set("fromId", strconv.FormatInt(fromID, 10))
}
if limit != 0 {
v.Set("limit", strconv.FormatInt(limit, 10))
}
req, err := c.newPrivateRequest(ctx, "GET", "myTrades", v, nil, recvWindow)
if err != nil {
return nil, err
}
body, err := c.getResponse(req)
if err != nil {
return nil, err
}
log.Debugf("Response body: %v", string(body))
var trade model.Trade
var trades []model.Trade
gjson.ParseBytes(body).ForEach(func(key, value gjson.Result) bool {
trade.ID = value.Get("id").Int()
trade.Price = cast.ToFloat64(value.Get("price").String())
trade.Amount = cast.ToFloat64(value.Get("qty").String())
trade.Time = cast.ToTime(value.Get("time").Int() / 1000)
if value.Get("isBuyer").Bool() {
trade.Type = "buy"
} else {
trade.Type = "sell"
}
trade.Raw = value.String()
trades = append(trades, trade)
return true // keep iterating
})
return trades, nil
}