AsyncAPI channel · Backpack · Backpack Exchange WebSocket Streams API

depth.{symbol}

Incremental order book depth updates. Each event contains absolute values at the listed levels; a level with quantity `0` is removed. A REST snapshot from `/api/v1/depth` is required to seed local state. Updates are sequential — `U` must equal previous `u + 1`.

Open source AsyncAPI → All Backpack channels Backpack provider profile
Provider: Backpack AsyncAPI: v2.6.0 Spec: Backpack Exchange WebSocket Streams API Operations: 1 Messages: 1

Channel address

depth.{symbol}

Parameters

Operations

subscribeDepth
Receive realtime incremental depth updates.

Messages

DepthEnvelope
Depth envelope
Content-Type: application/json

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

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