Orderbook fetcher

[sdks/ccxt/public/Orderbook fetcher]

icon

---

Lists the orderbook of the specified symbol. More: https://docs.ccxt.com/en/latest/manual.html#order-book Example:

1. Received via exchange:

{"id": "upbit"}@0<br>
```<br>
2. Received via `query`:<br>
```<br>
{<br>
  "symbol": "BTC/USDT"<br>
}@0<br>
```<br>
3. Sent via `data`:<br>
```<br>
{<br>
  "symbol": "BTC/USDT",<br>
  "bids": [<br>
    [<br>
      23340.881,<br>
      1.07108207<br>
    ],<br>
    [<br>
      23320.59700001,<br>
      0.00238276<br>
    ],<br>
    [<br>
      23320.597,<br>
      0.00127999<br>
    ],<br>
    [<br>
      23315.3649803,<br>
      0.00003501<br>
    ],<br>
    [<br>
      23302.07806294,<br>
      0.00013228<br>
    ],<br>
    [<br>
      23298.08462788,<br>
      0.00000951<br>
    ],<br>
    [<br>
      23281.21445401,<br>
      0.00038168<br>
    ],<br>
    [<br>
      23281.11,<br>
      0.00006959<br>
    ],<br>
    [<br>
      23250.503,<br>
      0.0308213<br>
    ],<br>
    [<br>
      23246.0481615,<br>
      0.10754516<br>
    ],<br>
    [<br>
      23241.06615375,<br>
      0.21513642<br>
    ],<br>
    [<br>
      23224.176,<br>
      2.49919148<br>
    ],<br>
    [<br>
      23087.5730675,<br>
      0.00476805<br>
    ],<br>
    [<br>
      22982.00175076,<br>
      0.00047025<br>
    ],<br>
    [<br>
      22938.00000001,<br>
      0.0001613<br>
    ]<br>
  ],<br>
  "asks": [<br>
    [<br>
      23411.01,<br>
      1.06787363<br>
    ],<br>
    [<br>
      23429.07818475,<br>
      0.1<br>
    ],<br>
    [<br>
      23508.38496241,<br>
      0.00568306<br>
    ],<br>
    [<br>
      23528.0658,<br>
      0.00004972<br>
    ],<br>
    [<br>
      23528.066,<br>
      1.86310435<br>
    ],<br>
    [<br>
      23658.76724138,<br>
      0.05370671<br>
    ],<br>
    [<br>
      23659.00383142,<br>
      0.05047722<br>
    ],<br>
    [<br>
      23659.77011495,<br>
      0.0194021<br>
    ],<br>
    [<br>
      23668.19923372,<br>
      0.17716542<br>
    ],<br>
    [<br>
      23750.00000001,<br>
      0.00388776<br>
    ],<br>
    [<br>
      23829,<br>
      0.00767275<br>
    ],<br>
    [<br>
      23838.46153847,<br>
      0.00809952<br>
    ],<br>
    [<br>
      23943.41085272,<br>
      0.00351427<br>
    ],<br>
    [<br>
      24000,<br>
      0.0327<br>
    ],<br>
    [<br>
      24180.902,<br>
      0.00644413<br>
    ]<br>
  ],<br>
  "timestamp": 1659364372388,<br>
  "datetime": "2022-08-01T14:32:52.388Z"<br>
}@0<br>
```<br>

---

### Input ports

* __exchange__: ` {"id": string} `

    Received the exchange to be used.<br>
    <br>
    More:<br>
    https://docs.ccxt.com/en/latest/exchange-markets.html<br>
    <br>
    Example:<br>
    ```<br>
    {"id": "upbit"}<br>
    ```<br>


* __query__: 
    ```
    {"symbol": string, optional "limit": number, optional "params": {string: any}}
    ```

    Received the orderbook parameters to be fetched.<br>
    <br>
    Example:<br>
    ```<br>
    {<br>
      "symbol": "BTC/USDT"<br>
    }<br>
    ```<br>

### Output ports

* __data__: 
    ```
    {
      "bids": [number, number][],
      "asks": [number, number][],
      "symbol": string,
      optional "timestamp": number,
      optional "datetime": string,
      optional "nonce": number
    }
    ```

    Sends information on open orders with bid (buy) and ask (sell) prices.<br>
    <br>
    Example:<br>
    ```<br>
    {<br>
      "symbol": "BTC/USDT",<br>
      "bids": [<br>
        [<br>
          23340.881,<br>
          1.07108207<br>
        ],<br>
        [<br>
          23320.59700001,<br>
          0.00238276<br>
        ],<br>
        [<br>
          23320.597,<br>
          0.00127999<br>
        ],<br>
        [<br>
          23315.3649803,<br>
          0.00003501<br>
        ],<br>
        [<br>
          23302.07806294,<br>
          0.00013228<br>
        ],<br>
        [<br>
          23298.08462788,<br>
          0.00000951<br>
        ],<br>
        [<br>
          23281.21445401,<br>
          0.00038168<br>
        ],<br>
        [<br>
          23281.11,<br>
          0.00006959<br>
        ],<br>
        [<br>
          23250.503,<br>
          0.0308213<br>
        ],<br>
        [<br>
          23246.0481615,<br>
          0.10754516<br>
        ],<br>
        [<br>
          23241.06615375,<br>
          0.21513642<br>
        ],<br>
        [<br>
          23224.176,<br>
          2.49919148<br>
        ],<br>
        [<br>
          23087.5730675,<br>
          0.00476805<br>
        ],<br>
        [<br>
          22982.00175076,<br>
          0.00047025<br>
        ],<br>
        [<br>
          22938.00000001,<br>
          0.0001613<br>
        ]<br>
      ],<br>
      "asks": [<br>
        [<br>
          23411.01,<br>
          1.06787363<br>
        ],<br>
        [<br>
          23429.07818475,<br>
          0.1<br>
        ],<br>
        [<br>
          23508.38496241,<br>
          0.00568306<br>
        ],<br>
        [<br>
          23528.0658,<br>
          0.00004972<br>
        ],<br>
        [<br>
          23528.066,<br>
          1.86310435<br>
        ],<br>
        [<br>
          23658.76724138,<br>
          0.05370671<br>
        ],<br>
        [<br>
          23659.00383142,<br>
          0.05047722<br>
        ],<br>
        [<br>
          23659.77011495,<br>
          0.0194021<br>
        ],<br>
        [<br>
          23668.19923372,<br>
          0.17716542<br>
        ],<br>
        [<br>
          23750.00000001,<br>
          0.00388776<br>
        ],<br>
        [<br>
          23829,<br>
          0.00767275<br>
        ],<br>
        [<br>
          23838.46153847,<br>
          0.00809952<br>
        ],<br>
        [<br>
          23943.41085272,<br>
          0.00351427<br>
        ],<br>
        [<br>
          24000,<br>
          0.0327<br>
        ],<br>
        [<br>
          24180.902,<br>
          0.00644413<br>
        ]<br>
      ],<br>
      "timestamp": 1659364372388,<br>
      "datetime": "2022-08-01T14:32:52.388Z"<br>
    }<br>
    ```<br>
    <br>
    More:<br>
    https://docs.ccxt.com/en/latest/manual.html#order-book-structure<br>


* __error__: ` {"error": string, optional "details": any} `