Bug Report: Hyperliquid - Error subscribing order book data streams and public klines

[lgrawet]

Describe the bug

Hi,

It looks like Hyperliquid is currently unusable for many pairs. I used v2_directional_rsi.py for the example.
HYPE-USDC is working but BTC-USDC is throwing the following errors at startup:

2025-03-15 09:03:06,462 - 17 - hummingbot.connector.exchange.hyperliquid.hyperliquid_api_order_book_data_source.HyperliquidAPIOrderBookDataSource - ERROR - Unexpected error occurred subscribing to order book data streams.
2025-03-15 09:03:06,463 - 17 - hummingbot.connector.exchange.hyperliquid.hyperliquid_api_order_book_data_source.HyperliquidAPIOrderBookDataSource - ERROR - Unexpected error occurred when listening to order book streams. Retrying in 5 seconds...
Traceback (most recent call last):
  File "/home/hummingbot/hummingbot/core/data_type/order_book_tracker_data_source.py", line 79, in listen_for_subscriptions
    await self._subscribe_channels(ws)
  File "/home/hummingbot/hummingbot/connector/exchange/hyperliquid/hyperliquid_api_order_book_data_source.py", line 83, in _subscribe_channels
    symbol = await self._connector.exchange_symbol_associated_to_pair(trading_pair=trading_pair)
  File "hummingbot/connector/exchange_base.pyx", line 97, in exchange_symbol_associated_to_pair
    return symbol_map.inverse[trading_pair]
  File "/opt/conda/envs/hummingbot/lib/python3.10/site-packages/bidict/_base.py", line 524, in __getitem__
    return self._fwdm[key]
KeyError: 'BTC-USDC'
2025-03-15 09:03:06,681 - 17 - hummingbot.data_feed.candles_feed.hyperliquid_spot_candles.hyperliquid_spot_candles - ERROR - Unexpected error occurred subscribing to public klines...
Traceback (most recent call last):
  File "/home/hummingbot/hummingbot/data_feed/candles_feed/candles_base.py", line 383, in _subscribe_channels
    subscribe_candles_request: WSJSONRequest = WSJSONRequest(payload=self.ws_subscription_payload())
  File "/home/hummingbot/hummingbot/data_feed/candles_feed/hyperliquid_spot_candles/hyperliquid_spot_candles.py", line 123, in ws_subscription_payload
    "coin": self._coins_dict[self._base_asset],
KeyError: 'BTC'
2025-03-15 09:03:06,683 - 17 - hummingbot.data_feed.candles_feed.hyperliquid_spot_candles.hyperliquid_spot_candles - ERROR - Unexpected error occurred when listening to public klines. Retrying in 1 seconds...
Traceback (most recent call last):
  File "/home/hummingbot/hummingbot/data_feed/candles_feed/candles_base.py", line 354, in listen_for_subscriptions
    await self._subscribe_channels(ws)
  File "/home/hummingbot/hummingbot/data_feed/candles_feed/candles_base.py", line 383, in _subscribe_channels
    subscribe_candles_request: WSJSONRequest = WSJSONRequest(payload=self.ws_subscription_payload())
  File "/home/hummingbot/hummingbot/data_feed/candles_feed/hyperliquid_spot_candles/hyperliquid_spot_candles.py", line 123, in ws_subscription_payload
    "coin": self._coins_dict[self._base_asset],
KeyError: 'BTC'

Steps to reproduce

1. Create config for v2_directional_rsi.py exchange/candles_exchange: hyperliquid, trading_pair/candles_pair: HYPE-USDC
2. Start the script, it should be OK
3. Create another config for v2_directional_rsi.py exchange/candles_exchange: hyperliquid, trading_pair/candles_pair: BTC-USDC
4. Start the script and observe the errors

Release version

2.4.0

Type of installation

Docker

Attach required files

No response

[lgrawet]

As discussed on Discord, I have to use UBTC instead of BTC and I just found out why!
First let's check the contract from Hyperliquid trading interface. This is not Bitcoin but Unit Bitcoin.
Here is the explanation