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client.go
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client.go
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package goquadriga
import (
"bytes"
"crypto/hmac"
"crypto/md5"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strconv"
"strings"
"time"
)
const V2URL = "https://api.quadrigacx.com/v2/"
type Client struct {
RootUrl string
ClientId string
ApiKey string
ApiSecret string
}
func NewClient(id string, key string, secret string) *Client {
return &Client{
RootUrl: V2URL,
ClientId: id,
ApiKey: key,
ApiSecret: secret,
}
}
func (c *Client) URL(res string) string {
return fmt.Sprintf("%s%s", c.RootUrl, res)
}
func (c *Client) GetCurrentTradingInfo() (CurrentTrade, error) {
var current CurrentTrade
body, err := c.get(c.URL("ticker"))
if err != nil {
return current, err
}
err = json.Unmarshal(body, ¤t)
return current, err
}
func (c *Client) GetOrderBook() (OrderBook, error) {
var orders OrderBook
body, err := c.get(c.URL("order_book"))
if err != nil {
return orders, err
}
err = json.Unmarshal(body, &orders)
return orders, err
}
func (c *Client) GetTransactions() (TransactionResponse, error) {
var transactions TransactionResponse
body, err := c.get(c.URL("transactions"))
if err != nil {
return transactions, err
}
err = json.Unmarshal(body, &transactions)
fmt.Printf("Results: %v\n", transactions)
return transactions, err
}
func (c *Client) PostAccountBalance() (AccountBalance, error) {
var balance AccountBalance
auth := c.makeSig()
payload, err := json.Marshal(auth)
if err != nil {
return balance, err
}
fmt.Println(string(payload))
body, err := c.post(c.URL("balance"), payload)
if err != nil {
return balance, err
}
err = json.Unmarshal(body, &balance)
return balance, nil
}
func (c *Client) PostOpenOrders() (OpenOrdersResponse, error) {
var orders OpenOrdersResponse
auth := c.makeSig()
payload, err := json.Marshal(auth)
if err != nil {
return orders, err
}
fmt.Println(string(payload))
body, err := c.post(c.URL("open_orders"), payload)
if err != nil {
return orders, err
}
err = json.Unmarshal(body, &orders)
return orders, nil
}
func (c *Client) PostOrderLookup(id string) (LookupOrderResponse, error) {
var lookup OrderId
var order []LookupOrderResponse
lookup.ID = id
auth := c.makeSig()
payload, err := json.Marshal(struct {
*BaseAuth
OrderId
}{auth, lookup})
if err != nil {
return order[0], err
}
fmt.Println(string(payload))
body, err := c.post(c.URL("lookup_order"), payload)
if err != nil {
return order[0], err
}
err = json.Unmarshal(body, &order)
return order[0], err
}
func (c *Client) PostCancelOrder(id string) (bool, error) {
var cancel OrderId
cancel.ID = id
auth := c.makeSig()
payload, err := json.Marshal(struct {
*BaseAuth
OrderId
}{auth, cancel})
if err != nil {
return false, err
}
fmt.Println(string(payload))
body, err := c.post(c.URL("cancel_order"), payload)
if err != nil {
return false, err
}
cancelSuccess, err := strconv.ParseBool(strings.Trim(string(body), "\""))
if err != nil {
return false, err
}
return cancelSuccess, err
}
func (c *Client) get(url string) ([]byte, error) {
resp, err := http.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return body, nil
}
func (c *Client) post(url string, payload []byte) ([]byte, error) {
req, err := http.NewRequest("POST", url, bytes.NewBuffer(payload))
req.Header.Set("Content-Type", "application/json; charset=utf-8")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
fmt.Println("Response status: ", resp.Status)
fmt.Println("Response headers: ", resp.Header)
fmt.Println("Response body: ", string(body))
return body, nil
}
func (c *Client) makeSig() *BaseAuth {
timestamp := strconv.FormatInt(time.Now().UTC().UnixNano(), 10)
secretHash := md5.New()
secretHash.Write([]byte(c.ApiSecret))
key := hex.EncodeToString(secretHash.Sum(nil))
fmt.Println("The secret key is ", key)
message := strings.Join([]string{timestamp, c.ClientId, c.ApiKey}, "")
fmt.Println("The message is ", message)
sig := hmac.New(sha256.New, []byte(key))
sig.Write([]byte(message))
base := &BaseAuth{ApiKey: c.ApiKey, Signature: hex.EncodeToString(sig.Sum(nil)), Nonce: timestamp}
return base
}