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Fix KeyError for prefixed coins in historical candle fetch

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Bypass SDK's name_to_coin lookup in candles_snapshot by calling
http_info.post directly with the raw coin name. This fixes
KeyError for symbols like xyz:GOLD, xyz:CL, mkts:USTECH that
aren't in the name_to_coin dictionary.

The WebSocket subscription already bypassed this lookup (line 154),
but the historical fetch path did not.
This commit is contained in:
DiTus
2026-08-05 09:20:07 +02:00
parent 21be9b40b7
commit 967c86e8e9
4 changed files with 27 additions and 10 deletions
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20
live_candle_fetcher.py
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@ -108,7 +108,8 @@ class LiveCandleFetcher:
while current_start < end_ms:
try:
http_info = Info(constants.MAINNET_API_URL, skip_ws=True)
batch = http_info.candles_snapshot(coin, "1m", current_start, end_ms)
req = {"coin": coin, "interval": "1m", "startTime": current_start, "endTime": end_ms}
batch = http_info.post("/info", {"type": "candleSnapshot", "req": req})
if not batch:
break
@ -158,11 +159,24 @@ class LiveCandleFetcher:
print("\nListening for live candle data... Press Ctrl+C to stop.")
try:
while True:
time.sleep(1)
try:
time.sleep(1)
except Exception as e:
logging.error(f"WebSocket connection lost: {e}")
self.info.ws_manager.stop()
time.sleep(5)
self.info = Info(constants.MAINNET_API_URL, skip_ws=False)
for coin in self.coins_to_watch:
callback = lambda msg, c=coin: self.on_message({**msg, 'data': {**msg.get('data',{}), 'coin': c}})
subscription = {"type": "candle", "coin": coin, "interval": "1m"}
self.info.ws_manager.subscribe(subscription, callback)
logging.info(f"Re-subscribed to 1m candles for {coin}")
time.sleep(0.2)
print("\nReconnected. Listening for live candle data...")
except KeyboardInterrupt:
print("\nStopping WebSocket listener...")
self.info.ws_manager.stop()
self.candle_queue.put(None)
self.candle_queue.put(None)
db_writer.join()
print("Listener stopped.")