Huobi / HTX WebSocket API

asyncapi: 2.6.0
id: urn:com:huobi:websocket-api
info:
  title: Huobi / HTX WebSocket API
  version: '1.0.0'
  description: |
    AsyncAPI 2.6 specification for Huobi (HTX) public WebSocket Market Data API
    and WebSocket v2 Asset & Order subscription API.

    ## Envelope conventions

    ### Market data (v1, /ws)
    - Subscribe:    `{ "sub": "<topic>", "id": "<client-id>" }`
    - Unsubscribe:  `{ "unsub": "<topic>", "id": "<client-id>" }`
    - One-shot req: `{ "req": "<topic>", "id": "<client-id>" }`
    - Push:         `{ "ch": "<topic>", "ts": <ms>, "tick": <object|array> }`
    - One-shot rsp: `{ "rep": "<topic>", "status": "ok", "id": "<client-id>", "data": <object|array> }`

    ### Asset & Order (v2, /ws/v2)
    - All frames use `{ "action": "sub"|"unsub"|"req"|"push"|"ping"|"pong", "ch": "<topic>", ... }`
    - Authentication is required before subscribing to private topics via
      `{ "action": "req", "ch": "auth", "params": { ... } }`.

    ## GZIP compression
    All inbound frames on `wss://api.huobi.pro/ws` and `wss://api.huobi.pro/feed`
    are GZIP-compressed binary. Clients MUST gunzip the payload before parsing
    JSON. Frames on `wss://api.huobi.pro/ws/v2` are sent as plain JSON text
    (no GZIP compression).

    ## Heartbeat
    - Market data (v1): server sends `{ "ping": <ts> }`; client replies `{ "pong": <ts> }` echoing the same timestamp.
    - Asset & Order (v2): server sends `{ "action": "ping", "data": { "ts": <ts> } }`;
      client replies `{ "action": "pong", "data": { "ts": <ts> } }`.
    Connections idle longer than the server timeout are closed.

    ## Authentication (v2)
    Authenticate with an HMAC-SHA256 signature over the canonical request string
    using `signatureVersion: 2.1` before subscribing to any private topic.
  termsOfService: https://www.htx.com/support/en-us/list/agreements
  contact:
    name: Huobi (HTX) Developer Support
    url: https://huobiapi.github.io/docs/spot/v1/en/
    email: [email protected]
  license:
    name: Proprietary
    url: https://www.htx.com/

defaultContentType: application/json

servers:
  market:
    url: api.huobi.pro/ws
    protocol: wss
    description: |
      Public market data WebSocket endpoint. GZIP-compressed binary frames.
      Mirror: `api-aws.huobi.pro/ws`.
  feed:
    url: api.huobi.pro/feed
    protocol: wss
    description: |
      Dedicated endpoint for Market By Price (MBP) incremental updates.
      GZIP-compressed binary frames. Mirror: `api-aws.huobi.pro/feed`.
  account:
    url: api.huobi.pro/ws/v2
    protocol: wss
    description: |
      WebSocket v2 endpoint for asset and order subscriptions. Plain JSON
      frames (no GZIP). Requires authentication for all private topics.
      Mirror: `api-aws.huobi.pro/ws/v2`.

tags:
  - name: market-data
    description: Public market data topics on /ws and /feed.
  - name: account
    description: Authenticated asset, order, and clearing topics on /ws/v2.
  - name: auth
    description: Authentication handshake for /ws/v2.

channels:

  # ----------------------------------------------------------------------
  # Market data (v1) - wss://api.huobi.pro/ws
  # ----------------------------------------------------------------------

  market.{symbol}.kline.{period}:
    description: Candlestick (kline) updates for a symbol at the given period.
    parameters:
      symbol:
        description: Trading pair, lowercase (e.g. `btcusdt`).
        schema:
          type: string
          example: btcusdt
      period:
        description: Candle period.
        schema:
          type: string
          enum: [1min, 5min, 15min, 30min, 60min, 1day, 1week, 1mon, 1year]
    servers: [market]
    publish:
      operationId: subKline
      summary: Subscribe / unsubscribe / request kline data.
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
          - $ref: '#/components/messages/V1Request'
    subscribe:
      operationId: pushKline
      summary: Receive kline push messages.
      message:
        $ref: '#/components/messages/KlinePush'

  market.{symbol}.depth.{type}:
    description: Aggregated order book depth at a price-aggregation step.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
      type:
        description: Price aggregation step.
        schema:
          type: string
          enum: [step0, step1, step2, step3, step4, step5]
    servers: [market]
    publish:
      operationId: subDepth
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
          - $ref: '#/components/messages/V1Request'
    subscribe:
      operationId: pushDepth
      message:
        $ref: '#/components/messages/DepthPush'

  market.{symbol}.trade.detail:
    description: Per-trade tick stream for a symbol.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
    servers: [market]
    publish:
      operationId: subTradeDetail
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
          - $ref: '#/components/messages/V1Request'
    subscribe:
      operationId: pushTradeDetail
      message:
        $ref: '#/components/messages/TradeDetailPush'

  market.{symbol}.detail:
    description: 24-hour rolling market detail / statistics for a symbol.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
    servers: [market]
    publish:
      operationId: subDetail
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
          - $ref: '#/components/messages/V1Request'
    subscribe:
      operationId: pushDetail
      message:
        $ref: '#/components/messages/MarketDetailPush'

  market.{symbol}.ticker:
    description: Real-time ticker for a single symbol.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
    servers: [market]
    publish:
      operationId: subTicker
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
    subscribe:
      operationId: pushTicker
      message:
        $ref: '#/components/messages/TickerPush'

  market.tickers:
    description: Real-time ticker snapshot for all trading pairs.
    servers: [market]
    publish:
      operationId: subAllTickers
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
    subscribe:
      operationId: pushAllTickers
      message:
        $ref: '#/components/messages/TickersPush'

  market.{symbol}.bbo:
    description: Best Bid / Best Offer updates for a symbol.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
    servers: [market]
    publish:
      operationId: subBbo
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
    subscribe:
      operationId: pushBbo
      message:
        $ref: '#/components/messages/BboPush'

  market.{symbol}.mbp.{levels}:
    description: |
      Market By Price (incremental) updates. Use `seqNum` / `prevSeqNum`
      to chain updates and de-duplicate. Served on the `/feed` endpoint.
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
      levels:
        description: Number of price levels.
        schema:
          type: integer
          enum: [5, 20, 150, 400]
    servers: [feed]
    publish:
      operationId: subMbp
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
          - $ref: '#/components/messages/V1Request'
    subscribe:
      operationId: pushMbp
      message:
        $ref: '#/components/messages/MbpIncrementalPush'

  market.{symbol}.mbp.refresh.{levels}:
    description: Market By Price refresh updates (full snapshot at interval).
    parameters:
      symbol:
        schema:
          type: string
          example: btcusdt
      levels:
        schema:
          type: integer
          enum: [5, 20, 150, 400]
    servers: [market]
    publish:
      operationId: subMbpRefresh
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
    subscribe:
      operationId: pushMbpRefresh
      message:
        $ref: '#/components/messages/MbpRefreshPush'

  market.{symbol}.etp:
    description: ETP (Exchange Traded Product) net asset value updates.
    parameters:
      symbol:
        schema:
          type: string
          example: btc3lusdt
    servers: [market]
    publish:
      operationId: subEtp
      message:
        oneOf:
          - $ref: '#/components/messages/V1SubscribeRequest'
          - $ref: '#/components/messages/V1UnsubscribeRequest'
    subscribe:
      operationId: pushEtp
      message:
        $ref: '#/components/messages/EtpPush'

  ping:
    description: |
      Heartbeat channel for the v1 market data sockets. The server sends a
      ping frame; the client MUST echo the same timestamp back as pong.
    servers: [market, feed]
    publish:
      operationId: sendPong
      message:
        $ref: '#/components/messages/V1Pong'
    subscribe:
      operationId: receivePing
      message:
        $ref: '#/components/messages/V1Ping'

  # ----------------------------------------------------------------------
  # Asset & Order v2 - wss://api.huobi.pro/ws/v2
  # ----------------------------------------------------------------------

  auth:
    description: |
      Authentication handshake. Must be sent and confirmed before subscribing
      to any private topic on the v2 socket.
    servers: [account]
    publish:
      operationId: sendAuth
      message:
        $ref: '#/components/messages/V2AuthRequest'
    subscribe:
      operationId: receiveAuthResponse
      message:
        $ref: '#/components/messages/V2AuthResponse'

  accounts.update#{mode}:
    description: |
      Account balance / available balance updates.
      - mode 0: only balance changes are pushed.
      - mode 1: only available balance changes are pushed.
      - mode 2: both balance and available balance changes are pushed.
    parameters:
      mode:
        description: Update mode.
        schema:
          type: integer
          enum: [0, 1, 2]
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: subAccountsUpdate
      message:
        oneOf:
          - $ref: '#/components/messages/V2SubscribeRequest'
          - $ref: '#/components/messages/V2UnsubscribeRequest'
    subscribe:
      operationId: pushAccountsUpdate
      message:
        $ref: '#/components/messages/AccountsUpdatePush'

  orders#{symbol}:
    description: |
      Order update events for a single symbol. Use `*` as the symbol to
      subscribe to all symbols on the account.
    parameters:
      symbol:
        description: Trading pair, lowercase. Use `*` for all symbols.
        schema:
          type: string
          example: btcusdt
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: subOrders
      message:
        oneOf:
          - $ref: '#/components/messages/V2SubscribeRequest'
          - $ref: '#/components/messages/V2UnsubscribeRequest'
    subscribe:
      operationId: pushOrders
      message:
        $ref: '#/components/messages/OrdersPush'

  trade.clearing#{symbol}:
    description: |
      Trade clearing (settlement) events for a single symbol. Use `*` as
      the symbol to subscribe across all symbols on the account.
    parameters:
      symbol:
        description: Trading pair, lowercase. Use `*` for all symbols.
        schema:
          type: string
          example: btcusdt
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: subTradeClearing
      message:
        oneOf:
          - $ref: '#/components/messages/V2SubscribeRequest'
          - $ref: '#/components/messages/V2UnsubscribeRequest'
    subscribe:
      operationId: pushTradeClearing
      message:
        $ref: '#/components/messages/TradeClearingPush'

  accounts.list:
    description: One-shot request that returns the full account list / balances.
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: reqAccountsList
      message:
        $ref: '#/components/messages/V2Request'
    subscribe:
      operationId: receiveAccountsList
      message:
        $ref: '#/components/messages/AccountsListResponse'

  orders.list:
    description: One-shot request that returns historical orders for an account.
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: reqOrdersList
      message:
        $ref: '#/components/messages/V2Request'
    subscribe:
      operationId: receiveOrdersList
      message:
        $ref: '#/components/messages/OrdersListResponse'

  orders.detail:
    description: One-shot request that returns the detail of a single order.
    servers: [account]
    security:
      - apiKey: []
    publish:
      operationId: reqOrdersDetail
      message:
        $ref: '#/components/messages/V2Request'
    subscribe:
      operationId: receiveOrdersDetail
      message:
        $ref: '#/components/messages/OrdersDetailResponse'

  ping-v2:
    description: |
      v2 heartbeat. Server sends `{ "action": "ping", "data": { "ts": <ms> } }`;
      client MUST echo with `{ "action": "pong", "data": { "ts": <ms> } }`.
    servers: [account]
    publish:
      operationId: sendV2Pong
      message:
        $ref: '#/components/messages/V2Pong'
    subscribe:
      operationId: receiveV2Ping
      message:
        $ref: '#/components/messages/V2Ping'

components:

  securitySchemes:
    apiKey:
      type: apiKey
      in: user
      description: |
        HMAC-SHA256 signed authentication using `signatureVersion: 2.1`.
        Submitted in-band via the `auth` channel before subscribing.

  messages:

    # ---------- v1 envelopes ----------

    V1SubscribeRequest:
      name: V1SubscribeRequest
      title: Subscribe (v1)
      summary: Subscribe to a v1 market-data topic.
      payload:
        type: object
        required: [sub]
        properties:
          sub:
            type: string
            description: Topic to subscribe to.
          id:
            type: string
            description: Optional client-supplied correlation id.
        example:
          sub: market.btcusdt.kline.1min
          id: id1

    V1UnsubscribeRequest:
      name: V1UnsubscribeRequest
      title: Unsubscribe (v1)
      payload:
        type: object
        required: [unsub]
        properties:
          unsub:
            type: string
          id:
            type: string
        example:
          unsub: market.btcusdt.kline.1min
          id: id1

    V1Request:
      name: V1Request
      title: One-shot Request (v1)
      summary: Request a historical / snapshot payload for a topic.
      payload:
        type: object
        required: [req]
        properties:
          req:
            type: string
            description: Topic to request.
          id:
            type: string
          from:
            type: integer
            description: Optional start timestamp (epoch seconds), kline only.
          to:
            type: integer
            description: Optional end timestamp (epoch seconds), kline only.
        example:
          req: market.btcusdt.kline.1min
          id: id1

    V1Ping:
      name: V1Ping
      title: Ping (v1)
      payload:
        type: object
        required: [ping]
        properties:
          ping:
            type: integer
            format: int64
            description: Server-supplied timestamp in milliseconds.
        example:
          ping: 1492420473027

    V1Pong:
      name: V1Pong
      title: Pong (v1)
      payload:
        type: object
        required: [pong]
        properties:
          pong:
            type: integer
            format: int64
            description: Echo the timestamp received in the ping.
        example:
          pong: 1492420473027

    # ---------- v1 pushes ----------

    KlinePush:
      name: KlinePush
      title: Kline Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              id:
                type: integer
                format: int64
                description: Candle start time, epoch seconds.
              open:
                type: number
              close:
                type: number
              low:
                type: number
              high:
                type: number
              amount:
                type: number
                description: Volume in base currency.
              vol:
                type: number
                description: Volume in quote currency.
              count:
                type: integer
                description: Number of trades in the candle.
        example:
          ch: market.btcusdt.kline.1min
          ts: 1489474082831
          tick:
            id: 1489464480
            amount: 0.0
            count: 0
            open: 7962.62
            close: 7962.62
            low: 7962.62
            high: 7962.62
            vol: 0.0

    DepthPush:
      name: DepthPush
      title: Aggregated Depth Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              bids:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2
                description: Array of `[price, amount]` pairs sorted descending.
              asks:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2
                description: Array of `[price, amount]` pairs sorted ascending.
              ts:
                type: integer
                format: int64
              version:
                type: integer
                format: int64

    TradeDetailPush:
      name: TradeDetailPush
      title: Trade Detail Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              id:
                type: integer
                format: int64
              ts:
                type: integer
                format: int64
              data:
                type: array
                items:
                  type: object
                  properties:
                    id:
                      type: integer
                      format: int64
                    ts:
                      type: integer
                      format: int64
                    tradeId:
                      type: integer
                      format: int64
                    amount:
                      type: number
                    price:
                      type: number
                    direction:
                      type: string
                      enum: [buy, sell]

    MarketDetailPush:
      name: MarketDetailPush
      title: Market Detail (24h) Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              id:
                type: integer
                format: int64
              low:
                type: number
              high:
                type: number
              open:
                type: number
              close:
                type: number
              vol:
                type: number
              amount:
                type: number
              version:
                type: integer
                format: int64
              count:
                type: integer

    TickerPush:
      name: TickerPush
      title: Ticker Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            $ref: '#/components/schemas/TickerEntry'

    TickersPush:
      name: TickersPush
      title: All Tickers Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: array
            items:
              $ref: '#/components/schemas/TickerEntry'

    BboPush:
      name: BboPush
      title: BBO Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              symbol:
                type: string
              quoteTime:
                type: integer
                format: int64
              bid:
                type: number
              bidSize:
                type: number
              ask:
                type: number
              askSize:
                type: number
              seqId:
                type: integer
                format: int64

    MbpIncrementalPush:
      name: MbpIncrementalPush
      title: MBP Incremental Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              seqNum:
                type: integer
                format: int64
              prevSeqNum:
                type: integer
                format: int64
              bids:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2
              asks:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2

    MbpRefreshPush:
      name: MbpRefreshPush
      title: MBP Refresh Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              seqNum:
                type: integer
                format: int64
              bids:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2
              asks:
                type: array
                items:
                  type: array
                  items:
                    type: number
                  minItems: 2
                  maxItems: 2

    EtpPush:
      name: EtpPush
      title: ETP Net Asset Value Push
      payload:
        type: object
        properties:
          ch:
            type: string
          ts:
            type: integer
            format: int64
          tick:
            type: object
            properties:
              symbol:
                type: string
              nav:
                type: number
              navTime:
                type: integer
                format: int64
              outstanding:
                type: number

    # ---------- v2 envelopes ----------

    V2AuthRequest:
      name: V2AuthRequest
      title: Auth Request (v2)
      payload:
        type: object
        required: [action, ch, params]
        properties:
          action:
            type: string
            const: req
          ch:
            type: string
            const: auth
          params:
            type: object
            required:
              - authType
              - accessKey
              - signatureMethod
              - signatureVersion
              - timestamp
              - signature
            properties:
              authType:
                type: string
                enum: [api]
              accessKey:
                type: string
              signatureMethod:
                type: string
                enum: [HmacSHA256]
              signatureVersion:
                type: string
                enum: ['2.1']
              timestamp:
                type: string
                description: UTC time formatted as `YYYY-MM-DDTHH:mm:ss`.
              signature:
                type: string
                description: Base64-encoded HMAC-SHA256 signature.
        example:
          action: req
          ch: auth
          params:
            authType: api
            accessKey: xxx-xxx-xxx-xxx
            signatureMethod: HmacSHA256
            signatureVersion: '2.1'
            timestamp: '2020-01-31T10:25:43'
            signature: xxxxxxxxxxxxxxxx

    V2AuthResponse:
      name: V2AuthResponse
      title: Auth Response (v2)
      payload:
        type: object
        properties:
          action:
            type: string
            const: req
          ch:
            type: string
            const: auth
          code:
            type: integer
          message:
            type: string
          data:
            type: object
        example:
          action: req
          code: 200
          ch: auth
          data: {}

    V2SubscribeRequest:
      name: V2SubscribeRequest
      title: Subscribe (v2)
      payload:
        type: object
        required: [action, ch]
        properties:
          action:
            type: string
            const: sub
          ch:
            type: string
          cid:
            type: string
            description: Optional client correlation id.
        example:
          action: sub
          ch: orders#btcusdt

    V2UnsubscribeRequest:
      name: V2UnsubscribeRequest
      title: Unsubscribe (v2)
      payload:
        type: object
        required: [action, ch]
        properties:
          action:
            type: string
            const: unsub
          ch:
            type: string
          cid:
            type: string

    V2Request:
      name: V2Request
      title: One-shot Request (v2)
      payload:
        type: object
        required: [action, ch]
        properties:
          action:
            type: string
            const: req
          ch:
            type: string
          params:
            type: object
          cid:
            type: string

    V2Ping:
      name: V2Ping
      title: Ping (v2)
      payload:
        type: object
        properties:
          action:
            type: string
            const: ping
          data:
            type: object
            properties:
              ts:
                type: integer
                format: int64
        example:
          action: ping
          data:
            ts: 1575537778295

    V2Pong:
      name: V2Pong
      title: Pong (v2)
      payload:
        type: object
        properties:
          action:
            type: string
            const: pong
          data:
            type: object
            properties:
              ts:
                type: integer
                format: int64
        example:
          action: pong
          data:
            ts: 1575537778295

    # ---------- v2 pushes ----------

    AccountsUpdatePush:
      name: AccountsUpdatePush
      title: Account Update Push
      payload:
        type: object
        properties:
          action:
            type: string
            const: push
          ch:
            type: string
          data:
            type: object
            properties:
              currency:
                type: string
              accountId:
                type: integer
                format: int64
              balance:
                type: string
                description: Total balance (only present in modes 0 and 2).
              available:
                type: string
                description: Available balance (only present in modes 1 and 2).
              changeType:
                type: string
                description: |
                  Source of balance change: `order.place`, `order.match`,
                  `order.refund`, `order.cancel`, `order.fee-refund`,
                  `margin.transfer`, `margin.loan`, `margin.interest`,
                  `margin.repay`, `other`.
              accountType:
                type: string
                enum: [trade, frozen, loan, interest]
              changeTime:
                type: integer
                format: int64
              seqNum:
                type: integer
                format: int64
        example:
          action: push
          ch: accounts.update#2
          data:
            currency: usdt
            accountId: 123456
            balance: '23.111'
            available: '20.222'
            changeType: order.match
            accountType: trade
            seqNum: 86872993928
            changeTime: 1568601800000

    OrdersPush:
      name: OrdersPush
      title: Order Update Push
      payload:
        type: object
        properties:
          action:
            type: string
            const: push
          ch:
            type: string
          data:
            type: object
            properties:
              eventType:
                type: string
                enum: [creation, trigger, deletion, cancellation, trade]
              symbol:
                type: string
              accountId:
                type: integer
                format: int64
              orderId:
                type: integer
                format: int64
              clientOrderId:
                type: string
              orderSide:
                type: string
                enum: [buy, sell]
              orderPrice:
                type: string
              orderSize:
                type: string
              orderValue:
                type: string
              type:
                type: string
                description: |
                  Order type, e.g. `buy-market`, `sell-market`, `buy-limit`,
                  `sell-limit`, `buy-ioc`, `sell-ioc`, `buy-limit-maker`,
                  `sell-limit-maker`, `buy-stop-limit`, `sell-stop-limit`,
                  `buy-limit-fok`, `sell-limit-fok`, `buy-stop-limit-fok`,
                  `sell-stop-limit-fok`.
              orderSource:
                type: string
              orderStatus:
                type: string
                enum: [submitted, partial-filled, filled, canceled, partial-canceled, rejected, created]
              errCode:
                type: integer
              errMessage:
                type: string
              lastActTime:
                type: integer
                format: int64
              tradePrice:
                type: string
              tradeVolume:
                type: string
              aggressor:
                type: boolean
              tradeId:
                type: integer
                format: int64
              tradeTime:
                type: integer
                format: int64
              remainAmt:
                type: string
              execAmt:
                type: string
              stopPrice:
                type: string
              operator:
                type: string
        example:
          action: push
          ch: orders#btcusdt
          data:
            orderSide: buy
            lastActTime: 1583853365586
            clientOrderId: abc123
            orderStatus: rejected
            errCode: 2002
            err

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# Full source: https://raw.githubusercontent.com/api-evangelist/huobi/refs/heads/main/asyncapi/huobi-asyncapi.yml