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api.go
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api.go
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/*
* Copyright (C) 2019-2020 Gregor Pogačnik
*/
package TokensApi
import (
"encoding/json"
"errors"
"fmt"
"net/url"
"sort"
"strconv"
"time"
"github.com/fiksn/TokensApi/entities"
"github.com/golang/glog"
uuid "github.com/satori/go.uuid"
)
const (
// Base URL for API calls
TokensBaseUrl = "https://api.tokens.net"
// Percentage fee for takers
TakerFeePercent = 0.2
// Percentage fee for makers
MakerFeePercent = 0
)
type TickerInterval int
const (
Day = iota
Hour
)
type CandleInterval int
const (
Min1 = iota
Min5
Min10
Min30
Day1
)
type CandleIntervalSpec struct {
Interval string
Number int
}
var candleIntervalMap = map[CandleInterval]CandleIntervalSpec{
Min1: {Interval: "minute", Number: 1},
Min5: {Interval: "minute", Number: 5},
Min10: {Interval: "minute", Number: 10},
Min30: {Interval: "minute", Number: 30},
Day1: {Interval: "day", Number: 1},
}
/**
* List all existing pairs.
*/
func GetTradingPairs() (entities.TradingPairResp, error) {
var resp entities.TradingPairResp
jsonBlob := request(TokensBaseUrl + "/public/trading-pairs/get/all/")
glog.V(5).Infof("GetTradingPairs resp %v", string(jsonBlob))
err := json.Unmarshal(jsonBlob, &resp)
if err != nil {
glog.Warningf("GetTradingPairs unable to unmarshal json blob: %v (%v)", string(jsonBlob), err)
return resp, err
}
return resp, nil
}
/**
* Get order book.
*/
func GetOrderBook(pair string) (entities.OrderBookResp, error) {
var resp entities.OrderBookResp
jsonBlob := request(TokensBaseUrl + fmt.Sprintf("/public/order-book/%s/", pair))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetOrderBook resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
if err != nil {
return resp, err
}
sort.Sort(entities.AskOrder(resp.Asks))
sort.Sort(sort.Reverse(entities.AskOrder(resp.Bids)))
return resp, nil
}
/**
* Get balance.
*/
func GetBalance(currency string) (entities.BalanceResp, error) {
var resp entities.BalanceResp
jsonBlob := requestAuth(TokensBaseUrl + fmt.Sprintf("/private/balance/%s/", currency))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetBalance resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get all balances.
*/
func GetAllBalances() (entities.AllBalanceResp, error) {
var resp entities.AllBalanceResp
jsonBlob := requestAuth(TokensBaseUrl + "/private/balance/all/")
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetAllBalances resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get ticker for last day or hour.
*/
func GetTicker(pair string, interval TickerInterval) (entities.TickerResp, error) {
var (
resp entities.TickerResp
url string
)
switch interval {
case Hour:
url = fmt.Sprintf("/public/ticker/hour/%s/", pair)
case Day:
url = fmt.Sprintf("/public/ticker/%s/", pair)
default:
return resp, errors.New("Illegal interval specified")
}
jsonBlob := request(TokensBaseUrl + url)
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetTicker resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* List trades, which occured in last minute, hour or day.
*/
func GetTrades(pair string, interval TickerInterval) (entities.TradesResp, error) {
var (
resp entities.TradesResp
url string
)
switch interval {
case Hour:
url = fmt.Sprintf("/public/trades/hour/%s/", pair)
case Day:
url = fmt.Sprintf("/public/trades/day/%s/", pair)
default:
return resp, errors.New("Illegal interval specified")
}
jsonBlob := request(TokensBaseUrl + url)
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetTrades resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* List all currencies participating in voting and number of votes for each currency.
*/
func GetVotes() (entities.VotesResp, error) {
var resp entities.VotesResp
jsonBlob := request(TokensBaseUrl + "/public/voting/get/all/")
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetVotes resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Cancel an order by id.
*/
func CancelOrder(id uuid.UUID) (entities.Base, error) {
var resp entities.Base
jsonBlob := requestAuthPost(TokensBaseUrl+fmt.Sprintf("/private/orders/cancel/%s/", id), url.Values{})
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("CancelOrder resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Place an order.
*/
func PlaceOrder(
pair string,
side entities.OrderType,
amount float64,
amountDecimals int,
price float64,
priceDecimals int,
takeProfitPrice float64,
expireDate *time.Time) (entities.PlaceOrderResp, error) {
var resp entities.PlaceOrderResp
resp.SetStatus("error")
data := url.Values{}
if amount <= 0 {
return resp, errors.New("Negative amount is not allowed")
}
if price <= 0 {
return resp, errors.New("Negative price is not allowed")
}
if side != entities.Buy && side != entities.Sell {
return resp, errors.New("Only buy or sell orders are supported")
}
data.Add("tradingPair", pair)
data.Add("side", string(side))
data.Add("amount", strconv.FormatFloat(amount, 'f', amountDecimals, 64))
data.Add("price", strconv.FormatFloat(price, 'f', priceDecimals, 64))
if takeProfitPrice > 0 {
data.Add("takeProfitPrice", strconv.FormatFloat(takeProfitPrice, 'f', priceDecimals, 64))
}
if expireDate != nil {
data.Add("expireDate", strconv.FormatInt(expireDate.Unix(), 10))
}
jsonBlob := requestAuthPost(TokensBaseUrl+"/private/orders/add/limit/", data)
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("PlaceOrder resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get order details.
*/
func GetOrderDetails(id uuid.UUID) (entities.OrderDetailsResp, error) {
var resp entities.OrderDetailsResp
jsonBlob := requestAuth(TokensBaseUrl + fmt.Sprintf("/private/orders/get/%s/", id))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetOrderDetails resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get all orders.
*/
func GetAllOrders() (entities.OrdersResp, error) {
var resp entities.OrdersResp
jsonBlob := requestAuth(TokensBaseUrl + "/private/orders/get/all/")
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetAllOrders resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get all orders for currency pair.
*/
func GetAllOrdersFor(pair string) (entities.OrdersResp, error) {
var resp entities.OrdersResp
jsonBlob := requestAuth(TokensBaseUrl + fmt.Sprintf("/private/orders/get/%s/", pair))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetAllOrdersFor resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get transactions. Page parameter starts from 1 and goes to max (which you get from TransactionResp.TotalPages)
*/
func GetTransactions(page int) (entities.TransactionResp, error) {
var resp entities.TransactionResp
jsonBlob := requestAuth(TokensBaseUrl + fmt.Sprintf("/private/transactions/%d/", page))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetTransactions resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get deposit address for given currency (note you need API key of Main account)
*/
func GetDepositAddress(currency string) (entities.DepositAddrResp, error) {
var resp entities.DepositAddrResp
jsonBlob := requestAuth(TokensBaseUrl + fmt.Sprintf("/private/deposit/%s/", currency))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetDepositAddress resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get currencies (and some basic info).
*/
func GetCurrencies() (entities.CurrencyResp, error) {
var resp entities.CurrencyResp
jsonBlob := request(TokensBaseUrl + "/public/currency/all/")
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetVotes resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}
/**
* Get candles.
*/
func GetCandles(pair string, interval CandleInterval, from, to time.Time) (entities.CandlesResp, error) {
var resp entities.CandlesResp
candleInterval, ok := candleIntervalMap[interval]
if !ok {
return resp, errors.New("Invalid interval")
}
// https://api.tokens.net/public/price-chart/{tradingPair}/{interval}/{period}/{timeFrom}/{timeTo}/
jsonBlob := request(TokensBaseUrl + fmt.Sprintf("/public/price-chart/%s/%s/%d/%s/%s/", pair, candleInterval.Interval, candleInterval.Number,
strconv.FormatInt(from.Unix(), 10), strconv.FormatInt(to.Unix(), 10)))
if jsonBlob == nil {
return resp, errors.New("No response")
}
glog.V(5).Infof("GetCandles resp %v", string(jsonBlob))
err := deserialize(jsonBlob, &resp)
return resp, err
}