Kami FMZ Quant Trading Platform mendukung banyak pertukaran cryptocurrency dan merangkum pertukaran arus utama di pasar. Namun, masih ada banyak pertukaran yang tidak merangkum. Bagi pengguna yang perlu menggunakan pertukaran ini, mereka dapat mengaksesnya melalui FMZ Quant Custom Protocol.RESTprotokol atauFIXprotokol juga dapat diakses.
Artikel ini akan membahasRESTakses protokol sebagai contoh untuk menjelaskan bagaimana menggunakan protokol kustom dari FMZ Quant Trading Platform untuk mengkapsul dan mengakses API dari pertukaran OKX. Kecuali ditentukan lain, artikel ini mengacu pada protokol kustom REST.
Halaman untuk mengkonfigurasi pertukaran di Platform Perdagangan Kuantum FMZ:
https://www.fmz.com/m/platforms/add
Strategy instance running on the docker -> Custom protocol program
Aku tidak tahu.
Misalnya:http://127.0.0.1:6666/OKX
, program protokol kustom dan docker biasanya dijalankan pada perangkat yang sama (server), sehingga alamat layanan ditulis sebagai mesin lokal (localhost), dan port dapat digunakan sebagai port yang tidak diduduki oleh sistem.Strategy instance running on the docker -> Custom protocol program
.Strategy instance running on the docker -> Custom protocol program
.Screenshot dari konfigurasi OKX plug-in yang diungkapkan dalam artikel adalah sebagai berikut:
OKX pertukaran informasi konfigurasi kunci rahasia:
accessKey: accesskey123 // accesskey123, these are not actual keys, just for demonstration
secretKey: secretkey123
passphrase: passphrase123
http://127.0.0.1:6666
. Program protokol kustom dapat memproses jalur tertentu, seperti/OKX
.Ketika fungsi API platform (FMZ) dipanggil dalam strategi, program protokol kustom akan menerima permintaan dari docker. Anda juga dapat mengujinya menggunakan alat debugging platform, misalnya:
Halaman alat debugging:
function main() {
return exchange.GetTicker("LTC_USDT")
}
Menelpon fungsiexchange.GetTicker()
, program protokol khusus menerima permintaan:
POST /OKX HTTP/1.1
{
"access_key":"xxx",
"method":"ticker",
"nonce":1730275031047002000,
"params":{"symbol":"LTC_USDT"},
"secret_key":"xxx"
}
exchange.GetTicker()
, method
adalahticker
.exchange.GetTicker()
, parameter terkait adalah:{"symbol":"LTC_USDT"}
.Ketika program protokol kustom menerima permintaan dari docker, ia dapat memperoleh informasi seperti fungsi API platform (termasuk informasi parameter) yang diminta oleh strategi, kunci pertukaran, dll. berdasarkan informasi yang dibawa dalam permintaan.
Berdasarkan informasi ini, program protokol kustom dapat mengakses antarmuka pertukaran untuk mendapatkan data yang diperlukan atau melakukan operasi tertentu.
Biasanya antarmuka pertukaran memiliki metode seperti GET/POST/PUT/DELETE, yang dibagi menjadi antarmuka publik dan antarmuka pribadi.
Program protokol kustom menerima data respons dari antarmuka pertukaran dan memprosesnya lebih lanjut untuk membangun data yang diharapkan oleh docker (digambarkan di bawah ini).GetTicker
, GetAccount
dan fungsi lain dalam implementasi kelas CustomProtocolOKX dalam contoh protokol kustom Python.
Ketika program protokol kustom mengakses antarmuka API pertukaran, melakukan operasi tertentu atau memperoleh data tertentu, ia perlu memberi masukan kembali hasil ke docker.
Data yang dimasukkan kembali ke docker bervariasi sesuai dengan antarmuka yang dipanggil oleh strategi, dan pertama dibagi menjadi dua kategori:
{
"data": null, // "data" can be of any type
"raw": null // "raw" can be of any type
}
data: Struktur khusus dari bidang ini terkait denganmethod
dalam permintaan yang diterima oleh program protokol khusus, dan digunakan untuk membangun struktur data yang akhirnya dikembalikan oleh fungsi API platform FMZ. Semua antarmuka akan tercantum di bawah ini.
raw: Bidang ini dapat digunakan untuk melewati data mentah dari tanggapan antarmuka API pertukaran, seperti struktur Ticker yang dikembalikan olehexchange.GetTicker()
Bidang Info dari struktur Ticker mencatat data dariraw
lapangan dandata
beberapa fungsi API platform tidak membutuhkan data ini.
{
"error": "" // "error" contains an error message as a string
}
error: informasi kesalahan, yang akan ditampilkan dalam log kesalahan di area log platform (FMZ) live trading, alat debugging dan halaman lainnya.
Menunjukkan data respon protokol khusus yang diterima oleh program strategi:
// Tested in the debugging tool of the FMZ platform
function main() {
Log(exchange.GetTicker("USDT")) // The trading pair is incomplete, the BaseCurrency part is missing, and the custom protocol plug-in is required to return an error message: {"error": "..."}
Log(exchange.GetTicker("LTC_USDT"))
}
Di atas adalah proses singkat dari program protokol kustom yang berpartisipasi dalam akses ke (FMZ tidak dikemas) API pertukaran.exchange.GetTicker()
Berikut ini akan menjelaskan rincian interaksi dari semua fungsi API platform secara rinci.
Platform ini merangkum fungsi-fungsi umum dari berbagai pertukaran dan menyatukan mereka ke dalam fungsi tertentu, seperti fungsi GetTicker, yang meminta informasi pasar saat ini dari produk tertentu. Ini adalah API yang pada dasarnya semua pertukaran memiliki. Oleh karena itu, ketika mengakses antarmuka API yang dikemas oleh platform dalam contoh strategi, docker akan mengirim permintaan ke program
POST /OKX HTTP/1.1
{
"access_key": "xxx",
"method": "ticker",
"nonce": 1730275031047002000,
"params": {"symbol":"LTC_USDT"},
"secret_key": "xxx"
}
Ketika memanggil fungsi API yang dikapsulkan platform FMZ yang berbeda dalam strategi (seperti GetTicker), format permintaan yang dikirim oleh docker ke protokol kustom juga akan berbeda.method
danparams
. Ketika merancang protokol kustom, melakukan operasi tertentu sesuai dengan isi metode. Berikut adalah skenario permintaan-respon untuk semua antarmuka.
Misalnya, pasangan perdagangan saat ini adalah:ETH_USDT
Data yang docker mengharapkan protokol kustom untuk menanggapi terutama ditulis dalam bidang data, dan bidang mentah juga dapat ditambahkan untuk merekam data asli antarmuka pertukaran.
bidang metode:
{"symbol":"ETH_USDT"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": {
"symbol": "ETH_USDT", // Corresponds to the Symbol field in the Ticker structure returned by the GetTicker function
"buy": "2922.18", // ...corresponds to the Buy field
"sell": "2922.19",
"high": "2955",
"low": "2775.15",
"open": "2787.72",
"last": "2922.18",
"vol": "249400.888156",
"time": "1731028903911"
},
"raw": {} // A raw field can be added to record the raw data of the exchange API interface response
}
medan metode:
{"limit":"30","symbol":"ETH_USDT"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data" : {
"time" : 1500793319499,
"asks" : [
[1000, 0.5], [1001, 0.23], [1004, 2.1]
// ...
],
"bids" : [
[999, 0.25], [998, 0.8], [995, 1.4]
// ...
]
}
}
bidang metode:
{"symbol":"eth_usdt"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
{
"id": 12232153,
"time" : 1529919412968,
"price": 1000,
"amount": 0.5,
"type": "buy", // "buy"、"sell"、"bid"、"ask"
}, {
"id": 12545664,
"time" : 1529919412900,
"price": 1001,
"amount": 1,
"type": "sell",
}
// ...
]
}
bidang metode:
{
"limit":"500",
"period":"60", // 60 minutes
"symbol":"ETH_USDT"
}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
// "Time":1500793319000,"Open":1.1,"High":2.2,"Low":3.3,"Close":4.4,"Volume":5.5
[1500793319, 1.1, 2.2, 3.3, 4.4, 5.5],
[1500793259, 1.01, 2.02, 3.03, 4.04, 5.05],
// ...
]
}
bidang metode:
{}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{}
bidang metode:
{}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{}
bidang metode:
{}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
{"currency": "TUSD", "free": "3000", "frozen": "0"},
{"currency": "BTC", "free": "0.2482982056277609", "frozen": "0"},
// ...
]
}
bidang metode:
{}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
{"currency": "TUSD", "free": "3000", "frozen": "0"},
{"currency": "BTC", "free": "0.2482982056277609", "frozen": "0"},
// ...
]
}
kolom metode:
{"amount":"0.1","price":"1000","symbol":"BTC_USDT","type":"buy"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": {
"id": "BTC-USDT,123456"
}
}
bidang metode:
{"symbol":"ETH_USDT"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
{
"id": "ETH-USDT,123456",
"symbol": "ETH_USDT",
"amount": 0.25,
"price": 1005,
"deal_amount": 0,
"avg_price": "1000",
"type": "buy", // "buy"、"sell"
"status": "pending", // "pending", "pre-submitted", "submitting", "submitted", "partial-filled"
},
// ...
]
}
bidang metode:
{
"id":"ETH-USDT,123456", // Calling in the strategy: exchange.GetOrder("ETH-USDT,123456")
"symbol":"ETH_USDT"
}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": {
"id": "ETH-USDT,123456",
"symbol": "ETH_USDT"
"amount": 0.15,
"price": 1002,
"status": "pending", // "pending", "pre-submitted", "submitting", "submitted", "partial-filled", "filled", "closed", "finished", "partial-canceled", "canceled"
"deal_amount": 0,
"type": "buy", // "buy"、"sell"
"avg_price": 0, // If the exchange does not provide it, it can be assigned a value of 0 during processing.
}
}
bidang metode:
{"limit":0,"since":0,"symbol":"ETH_USDT"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": [
{
"id": "ETH-USDT,123456",
"symbol": "ETH_USDT",
"amount": 0.25,
"price": 1005,
"deal_amount": 0,
"avg_price": 1000,
"type": "buy", // "buy"、"sell"
"status": "filled", // "filled"
},
// ...
]
}
kolom metode:
{"id":"ETH-USDT,123456","symbol":"ETH_USDT"}
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": true // As long as there is no error field in the JSON, the order cancellation is considered successful by default.
}
Peraturanexchange.IOfungsi digunakan untuk mengakses antarmuka pertukaran secara langsung.
GET /api/v5/trade/orders-pending, parameters: instType=SPOT, instId=ETH-USDT
sebagai contoh.
// Called in the strategy instance
exchange.IO("api", "GET", "/api/v5/trade/orders-pending", "instType=SPOT&instId=ETH-USDT")
bidang metode:"__api_/api/v5/trade/orders-pending"
, bidang metode dimulai dengan _api, menunjukkan bahwa ini dipicu olehexchange.IOpanggilan fungsi dalam contoh strategi.
bidang parameter:
{"instId":"ETH-USDT","instType":"SPOT"} // instType=SPOT&instId=ETH-USDT encoded parameters will be restored to JSON
Data yang diharapkan oleh docker dalam respon protokol khusus:
{
"data": {"code": "0", "data": [], "msg": ""} // The data attribute value is the data of the exchange API: GET /api/v5/trade/orders-pending response
}
exchange.Go()
, exchange.GetRawJSON()
dan fungsi lain tidak perlu dikemas, dan metode panggilan dan fungsi tetap tidak berubah.Selain mendukung semua fungsi bursa spot, bursa futures juga memiliki beberapa fungsi API yang unik untuk bursa futures.
Untuk dilaksanakan
REST Custom Protocol - Akses ke antarmuka OKX exchange REST API, terkapas sebagai objek spot exchange. Menerapkan permintaan antarmuka publik dan data respon yang terkapas. Mengimplementasikan tanda tangan antarmuka pribadi, permintaan dan respon data encapsulation. Contoh ini terutama untuk pengujian dan pembelajaran. antarmuka lainnya menggunakan data simulasi untuk langsung merespons docker untuk pengujian.
import http.server
import socketserver
import json
import urllib.request
import urllib.error
import argparse
import ssl
import hmac
import hashlib
import base64
from datetime import datetime
ssl._create_default_https_context = ssl._create_unverified_context
class BaseProtocol:
ERR_NOT_SUPPORT = {"error": "not support"}
def __init__(self, apiBase, accessKey, secretKey):
self._apiBase = apiBase
self._accessKey = accessKey
self._secretKey = secretKey
def _httpRequest(self, method, path, query="", params={}, addHeaders={}):
headers = {
'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6',
'Content-Type': 'application/json; charset=UTF-8'
}
# add headers
for key in addHeaders:
headers[key] = addHeaders[key]
if method == "GET":
url = f"{self._apiBase}{path}?{query}" if query != "" else f"{self._apiBase}{path}"
req = urllib.request.Request(url, method=method, headers=headers)
else:
url = f"{self._apiBase}{path}"
req = urllib.request.Request(url, json.dumps(params, separators=(',', ':')).encode('utf-8'), method=method, headers=headers)
print(f'send request by protocol: {self.exName}, req:', req.method, req.full_url, req.headers, req.data, "\n")
try:
with urllib.request.urlopen(req) as resp:
data = json.loads(resp.read())
except json.JSONDecodeError:
data = {"error": "Invalid JSON response"}
except urllib.error.HTTPError as e:
data = {"error": f"HTTP error: {e.code}"}
except urllib.error.URLError as e:
data = {"error": f"URL error: {e.reason}"}
except Exception as e:
data = {"error": f"Exception occurred: {str(e)}"}
print(f'protocol response received: {self.exName}, resp:', data, "\n")
return data
def GetTickers(self):
return self.ERR_NOT_SUPPORT
def GetMarkets(self):
return self.ERR_NOT_SUPPORT
def GetTicker(self, symbol):
return self.ERR_NOT_SUPPORT
def GetDepth(self, symbol=""):
return self.ERR_NOT_SUPPORT
def GetTrades(self, symbol=""):
return self.ERR_NOT_SUPPORT
def GetRecords(self, symbol, period, limit):
return self.ERR_NOT_SUPPORT
def GetAssets(self):
return self.ERR_NOT_SUPPORT
def GetAccount(self):
return self.ERR_NOT_SUPPORT
def CreateOrder(self, symbol, side, price, amount):
return self.ERR_NOT_SUPPORT
def GetOrders(self, symbol=""):
return self.ERR_NOT_SUPPORT
def GetOrder(self, orderId):
return self.ERR_NOT_SUPPORT
def CancelOrder(self, orderId):
return self.ERR_NOT_SUPPORT
def GetHistoryOrders(self, symbol, since, limit):
return self.ERR_NOT_SUPPORT
def GetPostions(self, symbol=""):
return self.ERR_NOT_SUPPORT
def SetMarginLevel(self, symbol, marginLevel):
return self.ERR_NOT_SUPPORT
def GetFundings(self, symbol=""):
return self.ERR_NOT_SUPPORT
def IO(self, params):
return self.ERR_NOT_SUPPORT
class ProtocolFactory:
@staticmethod
def createExWrapper(apiBase, accessKey, secretKey, exName) -> BaseProtocol:
if exName == "OKX":
return CustomProtocolOKX(apiBase, accessKey, secretKey, exName)
else:
raise ValueError(f'Unknown exName: {exName}')
class CustomProtocolOKX(BaseProtocol):
"""
CustomProtocolOKX - OKX API Wrapper
# TODO: add information.
"""
def __init__(self, apiBase, accessKey, secretKey, exName):
secretKeyList = secretKey.split(",")
self.exName = exName
self._x_simulated_trading = 0
if len(secretKeyList) > 1:
self._passphrase = secretKeyList[1]
if len(secretKeyList) > 2:
if secretKeyList[2] == "simulate":
self._x_simulated_trading = 1
else:
raise ValueError(f"{self.exName}: invalid secretKey format.")
super().__init__(apiBase, accessKey, secretKeyList[0])
def getCurrencys(self, symbol):
baseCurrency, quoteCurrency = "", ""
arrCurrency = symbol.split("_")
if len(arrCurrency) == 2:
baseCurrency = arrCurrency[0]
quoteCurrency = arrCurrency[1]
return baseCurrency, quoteCurrency
def getSymbol(self, instrument):
arrCurrency = instrument.split("-")
if len(arrCurrency) == 2:
baseCurrency = arrCurrency[0]
quoteCurrency = arrCurrency[1]
else:
raise ValueError(f"{self.exName}: invalid instrument: {instrument}")
return f'{baseCurrency}_{quoteCurrency}'
def callUnsignedAPI(self, httpMethod, path, query="", params={}):
return self._httpRequest(httpMethod, path, query, params)
def callSignedAPI(self, httpMethod, path, query="", params={}):
strTime = datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S.%f')[:-3] + 'Z'
jsonStr = json.dumps(params, separators=(',', ':')) if len(params) > 0 else ""
message = f'{strTime}{httpMethod}{path}{jsonStr}'
if httpMethod == "GET" and query != "":
message = f'{strTime}{httpMethod}{path}?{query}{jsonStr}'
mac = hmac.new(bytes(self._secretKey, encoding='utf8'), bytes(message, encoding='utf-8'), digestmod='sha256')
signature = base64.b64encode(mac.digest())
headers = {}
if self._x_simulated_trading == 1:
headers["x-simulated-trading"] = str(self._x_simulated_trading)
headers["OK-ACCESS-KEY"] = self._accessKey
headers["OK-ACCESS-PASSPHRASE"] = self._passphrase
headers["OK-ACCESS-TIMESTAMP"] = strTime
headers["OK-ACCESS-SIGN"] = signature
return self._httpRequest(httpMethod, path, query, params, headers)
# Encapsulates requests to the exchange API.
def GetTicker(self, symbol):
"""
GET /api/v5/market/ticker , param: instId
"""
baseCurrency, quoteCurrency = self.getCurrencys(symbol)
if baseCurrency == "" or quoteCurrency == "":
return {"error": "invalid symbol"}
path = "/api/v5/market/ticker"
query = f'instId={baseCurrency}-{quoteCurrency}'
data = self.callUnsignedAPI("GET", path, query=query)
if "error" in data.keys() and "data" not in data.keys():
return data
ret_data = {}
if data["code"] != "0" or not isinstance(data["data"], list):
return {"error": json.dumps(data, ensure_ascii=False)}
for tick in data["data"]:
if not all(k in tick for k in ("instId", "bidPx", "askPx", "high24h", "low24h", "vol24h", "ts")):
return {"error": json.dumps(data, ensure_ascii=False)}
ret_data["symbol"] = self.getSymbol(tick["instId"])
ret_data["buy"] = tick["bidPx"]
ret_data["sell"] = tick["askPx"]
ret_data["high"] = tick["high24h"]
ret_data["low"] = tick["low24h"]
ret_data["open"] = tick["open24h"]
ret_data["last"] = tick["last"]
ret_data["vol"] = tick["vol24h"]
ret_data["time"] = tick["ts"]
return {"data": ret_data, "raw": data}
def GetDepth(self, symbol):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = {
"time" : 1500793319499,
"asks" : [
[1000, 0.5], [1001, 0.23], [1004, 2.1]
],
"bids" : [
[999, 0.25], [998, 0.8], [995, 1.4]
]
}
return {"data": ret_data}
def GetTrades(self, symbol):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = [
{
"id": 12232153,
"time" : 1529919412968,
"price": 1000,
"amount": 0.5,
"type": "buy",
}, {
"id": 12545664,
"time" : 1529919412900,
"price": 1001,
"amount": 1,
"type": "sell",
}
]
return {"data": ret_data}
def GetRecords(self, symbol, period, limit):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = [
[1500793319, 1.1, 2.2, 3.3, 4.4, 5.5],
[1500793259, 1.01, 2.02, 3.03, 4.04, 5.05],
]
return {"data": ret_data}
def GetMarkets(self):
"""
TODO: Implementation code
"""
ret_data = {}
return {"data": ret_data}
def GetTickers(self):
"""
TODO: Implementation code
"""
ret_data = {}
return {"data": ret_data}
def GetAccount(self):
"""
GET /api/v5/account/balance
"""
path = "/api/v5/account/balance"
data = self.callSignedAPI("GET", path)
ret_data = []
if data["code"] != "0" or "data" not in data or not isinstance(data["data"], list):
return {"error": json.dumps(data, ensure_ascii=False)}
for ele in data["data"]:
if "details" not in ele or not isinstance(ele["details"], list):
return {"error": json.dumps(data, ensure_ascii=False)}
for detail in ele["details"]:
asset = {"currency": detail["ccy"], "free": detail["availEq"], "frozen": detail["ordFrozen"]}
if detail["availEq"] == "":
asset["free"] = detail["availBal"]
ret_data.append(asset)
return {"data": ret_data, "raw": data}
def GetAssets(self):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = [
{"currency": "TUSD", "free": "3000", "frozen": "0"},
{"currency": "BTC", "free": "0.2482982056277609", "frozen": "0"}
]
return {"data": ret_data}
def CreateOrder(self, symbol, side, price, amount):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = {
"id": "BTC-USDT,123456"
}
return {"data": ret_data}
def GetOrders(self, symbol):
"""
GET /api/v5/trade/orders-pending instType SPOT instId after limit
"""
baseCurrency, quoteCurrency = self.getCurrencys(symbol)
if baseCurrency == "" or quoteCurrency == "":
return {"error": "invalid symbol"}
path = "/api/v5/trade/orders-pending"
after = ""
limit = 100
ret_data = []
while True:
query = f"instType=SPOT&instId={baseCurrency}-{quoteCurrency}&limit={limit}"
if after != "":
query = f"instType=SPOT&instId={baseCurrency}-{quoteCurrency}&limit={limit}&after={after}"
data = self.callSignedAPI("GET", path, query=query)
if data["code"] != "0" or not isinstance(data["data"], list):
return {"error": json.dumps(data, ensure_ascii=False)}
for ele in data["data"]:
order = {}
order["id"] = f'{ele["instId"]},{ele["ordId"]}'
order["symbol"] = f'{baseCurrency}-{quoteCurrency}'
order["amount"] = ele["sz"]
order["price"] = ele["px"]
order["deal_amount"] = ele["accFillSz"]
order["avg_price"] = 0 if ele["avgPx"] == "" else ele["avgPx"]
order["type"] = "buy" if ele["side"] == "buy" else "sell"
order["state"] = "pending"
ret_data.append(order)
after = ele["ordId"]
if len(data["data"]) < limit:
break
return {"data": ret_data}
def GetOrder(self, orderId):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = {
"id": "ETH-USDT,123456",
"symbol": "ETH_USDT",
"amount": 0.15,
"price": 1002,
"status": "pending",
"deal_amount": 0,
"type": "buy",
"avg_price": 0,
}
return {"data": ret_data}
def GetHistoryOrders(self, symbol, since, limit):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = [
{
"id": "ETH-USDT,123456",
"symbol": "ETH_USDT",
"amount": 0.25,
"price": 1005,
"deal_amount": 0,
"avg_price": 1000,
"type": "buy",
"status": "filled"
}
]
return {"data": ret_data}
def CancelOrder(self, orderId):
"""
TODO: Implementation code
"""
# Mock data for testing.
ret_data = True
return {"data": ret_data}
def IO(self, httpMethod, path, params={}):
if httpMethod == "GET":
query = urllib.parse.urlencode(params)
data = self.callSignedAPI(httpMethod, path, query=query)
else:
data = self.callSignedAPI(httpMethod, path, params=params)
if data["code"] != "0":
return {"error": json.dumps(data, ensure_ascii=False)}
return {"data": data}
class HttpServer(http.server.SimpleHTTPRequestHandler):
def __init__(self, *args, **kwargs):
self.request_body = None
self.request_path = None
super().__init__(*args, **kwargs)
def log_message(self, format, *args):
return
def _sendResponse(self, body):
self.send_response(200)
self.send_header('Content-type', 'application/json; charset=utf-8')
self.end_headers()
self.wfile.write(json.dumps(body).encode('utf-8'))
def do_GET(self):
# The FMZ.COM custom protocol only send GET method request
self._sendResponse({"error": "not support GET method."})
def do_POST(self):
"""
Returns:
json: success, {"data": ...}
json: error, {"error": ...}
"""
contentLen = int(self.headers['Content-Length'])
self.request_body = self.rfile.read(contentLen)
self.request_path = self.path
exName = self.request_path.lstrip("/")
# Print the request received from the FMZ.COM robot
print(f"--------- request received from the FMZ.COM robot: --------- \n {self.requestline} | Body: {self.request_body} | Headers: {self.headers} \n")
try:
data = json.loads(self.request_body)
except json.JSONDecodeError:
data = {"error": self.request_body.decode('utf-8')}
self._sendResponse(data)
return
# fault tolerant
if not all(k in data for k in ("access_key", "secret_key", "method", "params")):
data = {"error": "missing required parameters"}
self._sendResponse(data)
return
respData = {}
accessKey = data["access_key"]
secretKey = data["secret_key"]
method = data["method"]
params = data["params"]
exchange = ProtocolFactory.createExWrapper("https://www.okx.com", accessKey, secretKey, exName)
if method == "ticker":
symbol = str(params["symbol"]).upper()
respData = exchange.GetTicker(symbol)
elif method == "depth":
symbol = str(params["symbol"]).upper()
respData = exchange.GetDepth(symbol)
elif method == "trades":
symbol = str(params["symbol"]).upper()
respData = exchange.GetTrades(symbol)
elif method == "records":
symbol = str(params["symbol"]).upper()
period = int(params["period"])
limit = int(params["limit"])
respData = exchange.GetRecords(symbol, period, limit)
elif method == "accounts":
respData = exchange.GetAccount()
elif method == "assets":
respData = exchange.GetAssets()
elif method == "trade":
amount = float(params["amount"])
price = float(params["price"])
symbol = str(params["symbol"])
tradeType = str(params["type"])
respData = exchange.CreateOrder(symbol, tradeType, price, amount)
elif method == "orders":
symbol = str(params["symbol"]).upper()
respData = exchange.GetOrders(symbol)
elif method == "order":
orderId = str(params["id"])
respData = exchange.GetOrder(orderId)
elif method == "historyorders":
symbol = str(params["symbol"])
since = int(params["since"])
limit = int(params["limit"])
respData = exchange.GetHistoryOrders(symbol, since, limit)
elif method == "cancel":
orderId = str(params["id"])
respData = exchange.CancelOrder(orderId)
elif method[:6] == "__api_":
respData = exchange.IO(self.headers["Http-Method"], method[6:], params)
else:
respData = {"error": f'invalid method: {method}'}
# Print the response to send to FMZ.COM robot
print(f"response to send to FMZ.COM robot: {respData} \n")
self._sendResponse(respData)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Run a FMZ.COM custom protocol plugin.")
parser.add_argument("--port", type=int, default=6666, help="Port to run the server on.")
parser.add_argument("--address", type=str, default="localhost", help="Address to bind the server to.")
args = parser.parse_args()
with socketserver.TCPServer((args.address, args.port), HttpServer) as httpd:
print(f"running... {args.address}:{args.port}", "\n")
httpd.serve_forever()