OpenOcean CEX API

Instruction of OpenOcean CEX API for Centralized users
1. Preparation
Before you use API, you need to login the website to create API Key with proper permissions.
Please remember below information after creation:
AccessKey It is used in API request
SecretKey It is used to generate the signature (only visible once after creation)
2. Authentication instruction
The API request may be tampered during internet, therefore all private API must be signed by your API Key (Secrete Key).
Each API Key has permission property, please check the API permission, and make sure your API key has proper permission.
A valid request consists of below parts:
API Path: open-api.openocean.finance/exchange/spot/open/v1/createOrder
API Access Key: The 'AccessKey' in your API Key
Signature Method: The Hash method that is used to sign, it uses HmacSHA256
Signature Version: The version for the signature protocol, it uses 2
Timestamp: The UTC time when the request is sent, e.g. 2017-05-11T16:22:06. It is useful to prevent the request to be intercepted by third-party.
Parameters: Each API Method has a group of parameters, you can refer to detailed document for each of them.
For GET request, all the parameters must be signed.
For POST request, the parameters needn't be signed and they should be put in request body.
Signature: The value after signed, it is guarantee the signature is valid and the request is not be tempered.
example：
https://open-api.openocean.finance/exchange/spot/open/v1/createOrder?
AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx
&SignatureMethod=HmacSHA256
&SignatureVersion=2
&Timestamp=2017-05-11T15%3A19%3A30
&order-id=1234567890
&Signature=calculated value
3. Signature method
The signature may be different if the request text is different, therefore the request should be normalized before signing. 
Below signing steps take the order query as an example:
https://open-api.openocean.finance/exchange/spot/open/v1/createOrder?
AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx
&SignatureMethod=HmacSHA256
&SignatureVersion=2
&Timestamp=2017-05-11T15:19:30
&order-id=1234567890
The request Method (GET or POST, WebSocket use GET), append line break "\n"
GET \n
The host with lower case, append line break "\n"
open-api.openocean.finance \n
The path, append line break "\n"
/exchange/spot/open/v1/createOrder \n
The parameters are URL encoded, and ordered based on ASCII
       For example below is the original parameters:
  AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx  
  order-id=1234567890  
  SignatureMethod=HmacSHA256  
  SignatureVersion=2  
  Timestamp=2017-05-11T15%3A19%3A30
       Then above parameter should be ordered like below:
  AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx  
  SignatureMethod=HmacSHA256  
  SignatureVersion=2  
  Timestamp=2017-05-11T15%3A19%3A30  
  order-id=1234567890
Use char "&" to concatenate all parameters
  AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx
  &SignatureMethod=HmacSHA256
  &SignatureVersion=2
  &Timestamp=2017-05-11T15%3A19%3A30&order-id=1234567890
Assemble the pre-signed text
  GET\n  open-api.openocean.finance\n  
  /exchange/spot/open/v1/createOrder\n  
  AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx
  &SignatureMethod=HmacSHA256&SignatureVersion=2
  &Timestamp=2017-05-11T15%3A19%3A30
  &order-id=1234567890
Use the pre-signed text and your Secret Key to generate a signature
Use the pre-signed text in step 6 and your API Secret Key to generate hash code by HmacSHA256 hash function.
  b0xxxxxx-c6xxxxxx-94xxxxxx-dxxxx
Encode the hash code with base-64 to generate the signature.
  4F65x5A2bLyMWVQj3Aqp+B4w+ivaA7n5Oi2SuYtCJ9o=
Put the signature into request URL
For Rest interface:
Put all the parameters in the URL
Encode signature by URL encoding and append in the URL with parameter name "Signature".
Finally, the request sent to API should be:
  https://open-api.openocean.finance/exchange/spot/open/v1/createOrder?
  AccessKeyId=e2xxxxxx-99xxxxxx-84xxxxxx-7xxxx
  &order-id=1234567890
  &SignatureMethod=HmacSHA256
  &SignatureVersion=2
  &Timestamp=2017-05-11T15%3A19%3A30
  &Signature=4F65x5A2bLyMWVQj3Aqp%2BB4w%2BivaA7n5Oi2SuYtCJ9o%3D
4. API docs
1. Create order
Request:
Method: POST
URL：/exchange/spot/open/v1/createOrder
Parameter：
Parameter Name
Type
Example
Description
exchangeCode
String
binance
exchange code
pairCode
String
BNB/BUSD
​
direction
String
0
0：buy 1：sell
orderType
String
1
1：market 2：limit
price
String
10
price
volume
String
10
​
{
    "exchangeCode": "binance", 
    "pairCode": "BNB/BUSD", 
    "direction": "0", 
    "orderType": "1", 
    "price": "10", 
    "volume": "10"
}
Response：
{
    "code": 0, 
    "msg": "Correct response", 
    "ts": 1608715168529, 
    "data": null, 
    "error": false
}
2. Cancel order
    Request:
Method: POST
URL：/exchange/spot/open/v1/cancelOrder
Parameter：
Parameter Name
Type
Example
Description
localOrderId
String
1
local order id
{
    "localOrderId": "1"
}
Response：
{
    "code": 0, 
    "msg": "Correct response", 
    "ts": 1608715168529, 
    "data": null, 
    "error": false
}
3. List funds
Request:
Method: GET
URL：/exchange/spot/open/v1/listFunds
Parameter：
Parameter Name
Type
Example
Description
pairCode
String
BNB/BUSD
pair code
Response：

Field Name
Type
Example
Description
coinType
String
BNB
coin type
available
String
390.70
​
frozen
String
0


{
    "code": 0, 
    "msg": "Correct response", 
    "ts": 1608715168529, 
    "data": [
        {
            "coinType": "BNB", 
            "available": 390.7, 
            "forzen": 0
        }
    ], 
    "error": false
}
4. List current order
Request:
Method: GET
URL：/exchange/spot/open/v1/listCurrentOrder
Parameter：
Parameter Name
Type
Example
Description
page
Number
1
pageNum
length
Number
10
pageSize
Response：
Field Name
Type
Example
Description
localOrderId
String
1774y3812418
local order id
exchangeSymbol
String
Binance
exchange symbol
pairCode
String
BNB/USDT
pair code
direction
String
Buy
​
orderType
String
Limit
​
orderStatus
String
Canceled
NotFilled、PartFilled
orderPrice
String
0.000357
order price
orderVolume
String
350.000000
order volume
tradePrice
String
0.000000
trade price
tradeVolume
String
0.000000
trade volume
tradeAmount
String
0.000000
trade amount
fee
String
0.000000
fee
orderTime
String
1611755902000
order time
{
    "code": 0, 
    "msg": "Correct response", 
    "ts": 1608715168529, 
    "data": {
        "pageInfo": {
            "total": 2, 
            "page": 1
        }, 
        "result": [
            {
                "localOrderId": "1774y3812418", 
                "exchangeSymbol": "Binance", 
                "pairCode": "BAKE/BNB", 
                "orderType": "Limit", 
                "direction": "Buy", 
                "orderStatus": "Canceled", 
                "orderPrice": "0.000357", 
                "orderVolume": "350.000000", 
                "tradePrice": "0.000000", 
                ja"tradeVolume": "0.000000", 
                "tradeAmount": "0.000000", 
                "fee": "0.000000", 
                "orderTime": 1611755902000
            }
        ]
    }, 
    "error": false
}
5. List history order
Request:
Method: GET
URL：/exchange/spot/open/v1/listHistoryOrder
Parameter：
Parameter Name
Type
Example
Description
page
Number
1
pageNum
length
Number
10
pageSize
pairCode
String
BNB/USDT
pair code
startTime
String
1611755902000
timestamp
endTime
String
1611755902000
timestamp
Response
{
    "code": 0, 
    "msg": "Correct response", 
    "ts": 1608715168529, 
    "data": {
        "pageInfo": {
            "total": 2, 
            "page": 1
        }, 
        "result": [
            {
                "localOrderId": "1774y3812418", 
                "exchangeSymbol": "Binance", 
                "pairCode": "BAKE/BNB", 
                "orderType": "Limit", 
                "direction": "Buy", 
                "orderStatus": "Canceled", 
                "orderPrice": "0.000357", 
                "orderVolume": "350.000000", 
                "tradePrice": "0.000000", 
                "tradeVolume": "0.000000", 
                "tradeAmount": "0.000000", 
                "fee": "0.000000", 
                "orderTime": 1611755902000
            }
        ]
    }, 
    "error": false
}
OpenOcean API 2.0
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OpenOcean SDK
Last modified 8mo ago
Parameter Name	Type	Example	Description
localOrderId	String	1	local order id
Field Name	Type	Example	Description
coinType	String	BNB	coin type
available	String	390.70
frozen	String	0