Modify Order - Vessel Finance API

Request

Header Params

VESSEL-API-KEY

string

required

Default:

VESSEL-PASSPHRASE

string

required

Default:

VESSEL-SIGNATURE

string

required

Use signRequest script to generate

VESSEL-TIMESTAMP

string

required

Use signRequest script to set

Body Params application/json

symbol

string

required

Trading pair symbol (e.g., "WBTCUSDT") for which the order is placed.

oldOrderId

string

required

The unique identifier assigned by the client for the old order that need to be modified.

quantity

string

required

New quantity for this modification.

price

string

required

New price for this modification.

newClientOrderId

string

required

The unique identifier assigned by the client to new order. It must be unique for each new order.

signature

string

required

The cryptographic signature generated using the Poseidon algorithm. Refer to the Poseidon Signature Guide for details on generating the signature.

newOrderRespType

string

required

Specifies the response type for the new order.
"FULL" will respond with detailed information about the new order, including all relevant details.
"RESULT" will respond with only the basic result of the order placement.
"ACK" will respond with a quick acknowledgment that the order has been received and is being processed. However, the response will not include the detailed information about the order's status or execution.

Example

{
    "symbol": "WBTCUSDT",
    "oldOrderId": "78",
    "quantity": "0.12",
    "price": "36000",
    "newClientOrderId": "1701772026638",
    "signature": "0xd448022ed479ff946790d172ad21b4e42ad3647ac0c2a73151ffa45242bc9a093462368dafd45725d75f530c519201110f87a074167a5eb7c773d3fa99d3f66c",
    "newOrderRespType": "FULL"
}

Request samples

Shell

JavaScript

Java

Swift

Go

PHP

Python

HTTP

C

C#

Objective-C

Ruby

OCaml

Dart

R

curl --location --request POST 'https://testnet.trade.vessel.finance/api/v1/modifyOrder' \
--header 'VESSEL-API-KEY;' \
--header 'VESSEL-PASSPHRASE;' \
--header 'VESSEL-SIGNATURE;' \
--header 'VESSEL-TIMESTAMP;' \
--header 'Content-Type: application/json' \
--data-raw '{
    "symbol": "WBTCUSDT",
    "oldOrderId": "78",
    "quantity": "0.12",
    "price": "36000",
    "newClientOrderId": "1701772026638",
    "signature": "0xd448022ed479ff946790d172ad21b4e42ad3647ac0c2a73151ffa45242bc9a093462368dafd45725d75f530c519201110f87a074167a5eb7c773d3fa99d3f66c",
    "newOrderRespType": "FULL"
}'

Responses

🟢200Success

application/json

Body

orderId

string

required

Unique identifier assigned to the newly placed order.

symbol

string

required

Trading pair symbol for which the order was placed (e.g., "WBTCUSDT").

transactTime

string

required

Timestamp when the order transaction occurred (Unix timestamps in milliseconds & UTC).

workingTime

string

required

Timestamp when the order started processing (Unix timestamps in milliseconds & UTC).

origQty

string

required

Original quantity specified in the order.

type

string

required

Type of order (e.g., "LIMIT").

side

string

required

Side of the order (e.g., "BUY" or "SELL").

executedQty

string

required

Quantity of the order that has been executed.

status

string

required

The current status of the order.
NEW: The order has been created and is awaiting processing.
PARTIALLY_FILLED: The order has been partially filled.
FILLED: The order has been completely filled.
CANCELED: The order has been canceled.
REJECTED: The order has been rejected.
EXPIRED: The order has expired.

fills

array [object {3}]

required

Details of the fills that occurred during the order execution.

action

string

required

Action associated with the fill, indicating the nature of the transaction (e.g., "TRADE", "REJECT", "REDUCE").

price

string

required

Price at which the fill occurred.

qty

string

required

Quantity of the asset filled in the transaction.

price

string

optional

Price specified in the order.

timeInForce

string

optional

Time in force for the order. "GTC" for Good Til Canceled, "FOK" for Fill Or Kill, and "IOC" Immediate Or Cancel.

Example

{
    "orderId": "3907830740629590000",
    "symbol": "BTCUSDT",
    "transactTime": "1692865580026",
    "workingTime": "1692865580029",
    "origQty": "0.001",
    "type": "MARKET",
    "side": "SELL",
    "executedQty": "0.0001",
    "status": "PARTIALLY_FILLED",
    "fills": [
        {
            "action": "REJECT",
            "price": "0",
            "qty": "0.0009"
        },
        {
            "action": "TRADE",
            "price": "1000",
            "qty": "0.0001"
        }
    ]
}