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This bridge is generated from internal/websocket-schema.json. The contract lists command names, command required fields, and event names. It does not publish a standalone AsyncAPI contract or full event payload field schemas, so this page does not invent event JSON Schema blocks. Use WebSocket Message Schema for the human command and event contract.

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Command Inventory

CommandRequired fields
subscribeop, channel, symbol
unsubscribeop, channel, symbol
replayop, channel_or_channels, symbol, start, end
replay.pauseop
replay.resumeop
replay.seekop, timestamp
replay.stopop
pingop

​
Event Inventory

EventSchema coverage
subscribedName only; full field schema is not present in internal/websocket-schema.json.
unsubscribedName only; full field schema is not present in internal/websocket-schema.json.
pongName only; full field schema is not present in internal/websocket-schema.json.
dataName only; full field schema is not present in internal/websocket-schema.json.
l4_snapshotName only; full field schema is not present in internal/websocket-schema.json.
l4_batchName only; full field schema is not present in internal/websocket-schema.json.
replay_startedName only; full field schema is not present in internal/websocket-schema.json.
replay_snapshotName only; full field schema is not present in internal/websocket-schema.json.
historical_dataName only; full field schema is not present in internal/websocket-schema.json.
historical_tick_dataName only; full field schema is not present in internal/websocket-schema.json.
replay_pausedName only; full field schema is not present in internal/websocket-schema.json.
replay_resumedName only; full field schema is not present in internal/websocket-schema.json.
replay_completedName only; full field schema is not present in internal/websocket-schema.json.
replay_stoppedName only; full field schema is not present in internal/websocket-schema.json.
gap_detectedName only; full field schema is not present in internal/websocket-schema.json.
errorName only; full field schema is not present in internal/websocket-schema.json.

​
subscribe Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "subscribe command",
  "type": "object",
  "required": [
    "op",
    "channel",
    "symbol"
  ],
  "properties": {
    "op": {
      "const": "subscribe"
    },
    "channel": {},
    "symbol": {}
  },
  "additionalProperties": true
}

​
unsubscribe Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "unsubscribe command",
  "type": "object",
  "required": [
    "op",
    "channel",
    "symbol"
  ],
  "properties": {
    "op": {
      "const": "unsubscribe"
    },
    "channel": {},
    "symbol": {}
  },
  "additionalProperties": true
}

​
replay Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "replay command",
  "type": "object",
  "required": [
    "op",
    "channel_or_channels",
    "symbol",
    "start",
    "end"
  ],
  "properties": {
    "op": {
      "const": "replay"
    },
    "channel_or_channels": {},
    "symbol": {},
    "start": {},
    "end": {}
  },
  "additionalProperties": true
}

​
replay.pause Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "replay.pause command",
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "const": "replay.pause"
    }
  },
  "additionalProperties": true
}

​
replay.resume Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "replay.resume command",
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "const": "replay.resume"
    }
  },
  "additionalProperties": true
}

​
replay.seek Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "replay.seek command",
  "type": "object",
  "required": [
    "op",
    "timestamp"
  ],
  "properties": {
    "op": {
      "const": "replay.seek"
    },
    "timestamp": {}
  },
  "additionalProperties": true
}

​
replay.stop Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "replay.stop command",
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "const": "replay.stop"
    }
  },
  "additionalProperties": true
}

​
ping Command

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ping command",
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "const": "ping"
    }
  },
  "additionalProperties": true
}
Last modified on June 29, 2026