Get order book

Returns the live order book for one of the four books: a payment type (type) crossed with a duration (duration), in the denomination given by currency_type. Each contract carries its price ladder, with the daily hashrate bid and offered at each level, plus the mid-market price and the current spot hashprice. contracts is optional and defaults to every contract the book is quoting today — the monthly set rolls with the calendar and the last day of a month has already dropped that month, so a client should let the API decide it rather than hardcoding MMYY codes. A contract must belong to the book it is requested under: MMYY for MONTHLY, a D-prefixed tenor (D030–D180) for DAYS.

curl -X GET "https://example.com/v2/derivatives/orderbook/BTC"

{  "currency_type": "BTC",  "type": "STANDARD",  "duration": "MONTHLY",  "spot_hashprice": 0.00048,  "spot_hashprice_1d": 0.00047,  "contracts": [    {      "contract": "1226",      "duration_days": 0,      "mid_market_price": 0.000495,      "levels": [        {          "unit_hashprice": 0.00049,          "bid_ph": 120,          "ask_ph": null        }      ]    }  ]}

{  "statusCode": 400,  "code": "FST_ERR_VALIDATION",  "error": "Bad Request",  "message": "body/end_date Required"}