Place Order

Description

Place order

HTTP Request

• POST /open/api/create_order

Request Parameters

Parameter	Type	Required	Description
api_key	String	Yes	the key is in the user api management
time	Long	Yes	it is the current timestamp
sign	String	Yes	the string is generated according to signature rule
symbol	String	Yes	coin pair, example: btcusdt
volume	String	Yes	this parameter means purchasing volume which is multi-meaning and reused field. When the type is 1, it means purchasing volume. When the type is 2, it means total amount that you want to purchase.
price	Integer	No	limit price, if the type is 2, this parameter isn't required
side	String	Yes	order side: BUY, SELL
type	Integer	Yes	order type: 1 limit，2 market
volumeType	Integer	No	order volume type 1 amount value volume, e.g. buy or sell with a total value of 1000 USDT. 2 base coin amount volume, e.g. buy or sell 1 BTC. If the order is limit order (type = 1), then volumeType must be 2. If it is market order (type = 2), whether it's a buy or sell order, volumeType can be either 1 or 2
clientOrderId	String	No	Client order ID

Request Example

curl --location 'https://openapi.100ex.com/open/api/create_order' \
-H 'Content-Type: application/x-www-form-urlencoded' \
-d 'api_key=*********&time=1743915906323&sign=*********&clientOrderId=client000001&price=72230&side=BUY&symbol=btcusdt&type=1&volume=0.1&volumeType=2'

Response Parameters

Parameter	Type	Description
order_id	Long	Order ID
clientOrderId	String	Client order ID

Response Example

{
    "code": "0",
    "msg": "suc",
    "data": {
        "order_id": 443037583316877312,
        "clientOrderId": "client000001"
    },
    "message": null,
    "traceId": null
}

Status Code

Code	Description
0	success
1	system error
5	fail to place order
9	the trading was froze
32	the price is outside the allowable daily limit range, and the order cannot be placed
33	the order volume is over the maximum limit
34	the frequency of order placement is too high
35	placing orders is not allowed
100004	illegal parameter
100005	illegal sign
100007	illegal ip address
100008	the request time is expired
10069	market orders are not permitted for trading pairs with daily price limit restrictions.
101115	the current trading volume has surpassed the user's permitted daily trading limit.
101117	the coin does not allow market trading.
101124	This order will cause the holding of this coin to exceed the maximum limit. Please place a new order.
101999	this coin does not open
210006	this user isn't in the whitelist of open-api