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One Trading

One Trading WebSocket Streams API

Real-time WebSocket API for market data (order book, price ticks, book ticker) and, after authenticating, private trading events (order lifecycle, trades, settlement, funding payments, balance adjustments).

Documentation Provider Profile APIs.io AsyncAPI GitHub

This event API exposes 2 operations across 1 channel, and defines 24 schemas. It is described by AsyncAPI 2.6.0, at version 1.0.

The API connects through a single server, streams.fast.onetrading.com (wss).

2 operations 1 channels 24 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
1.0
Base URL
wss://streams.fast.onetrading.com
Resource Areas
1

Channels & Operations 2

Across 1 channel, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
SUB
/
Messages the server sends to the client.
receiveEvents body
PUB
/
Messages the client sends to the server.
sendCommands body

Messages & Schemas 24

The contract defines 24 schemas that model the data carried by its messages. The most detailed is OrderEvent (8 properties). Each schema is shown below with its type and property counts.

Authenticate
message
Authenticate the connection with an API token (Trade permission required).
Authenticated
message
Authentication succeeded.
Subscribe
message
Subscribe to one or more channels for a set of instruments.
Ping
message
Keep-alive ping; server replies with PONG.
CreateOrder
message
Create an order over the WebSocket connection.
CancelAllOrders
message
CancelOrderByOrderId
message
CancelOrderByClientId
message
MoveOrder
message
Move (reprice) an existing order.
MarginUpdate
message
Update margin on a futures position.
OrderBookSnapshot
message
Full order book snapshot for a subscribed instrument.
OrderBookUpdate
message
Incremental order book update.
PriceTick
message
Trade price tick for a subscribed instrument.
BookTick
message
Best bid/ask (top-of-book) update.
OrderBooked
message
An order was accepted and booked.
OrderRejected
message
An order was rejected.
OrderClosed
message
An order was closed/cancelled.
OrderFullyFilled
message
An order was fully filled.
TradeExecuted
message
A trade was executed against one of the client's orders.
Settlement
message
A futures settlement event.
FundingPayment
message
A futures funding payment was applied.
BalanceAdjustment
message
An account balance was adjusted.
ErrorMessage
message
Error envelope; carries a single machine-readable code.
OrderEvent
object
8 properties

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

one-trading-streams-asyncapi.yml Raw ↑
#WebSocket#Streaming#Event
← Back to O APIs
API Details
ID
one-trading:one-trading-websocket-streams-api
Base URL
wss://streams.fast.onetrading.com
Docs
https://docs.onetrading.com/websocket.md
Provider
One Trading
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