harwinder
5a0af663c1
Probes whether Twelve Data allows two simultaneous WS connections for one symbol (SDK-based, 30s run, prints per-connection verdict). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
109 lines
2.9 KiB
Python
109 lines
2.9 KiB
Python
#!/usr/bin/env python3
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"""Test whether Twelve Data allows 2 simultaneous WebSocket connections for EUR/USD.
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Uses the twelvedata SDK which handles the WS protocol correctly.
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Runs connection 1, then adds connection 2 after 10s, monitors for 30s total.
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"""
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import threading
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import time
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from twelvedata import TDClient
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API_KEY = "f563b22ffdfd4924955decbe1a8c8701"
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SYMBOL = "EUR/USD"
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DURATION = 30
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results = {
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"WS-1": {"ticks": 0, "errors": [], "alive": False},
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"WS-2": {"ticks": 0, "errors": [], "alive": False},
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}
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def make_handlers(label):
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def on_event(event):
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if event.get("event") == "price":
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results[label]["ticks"] += 1
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price = event.get("price", "?")
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print(f"[{label}] tick #{results[label]['ticks']:3d} price={price}")
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def on_error(error):
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results[label]["errors"].append(str(error))
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print(f"[{label}] ERROR: {error}")
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def on_close(status):
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results[label]["alive"] = False
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print(f"[{label}] CLOSED (status={status})")
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def on_connect():
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results[label]["alive"] = True
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print(f"[{label}] CONNECTED — subscribed to {SYMBOL}")
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return on_event, on_error, on_close, on_connect
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def run_ws(label):
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td = TDClient(apikey=API_KEY)
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on_event, on_error, on_close, on_connect = make_handlers(label)
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ws = td.websocket(
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symbols=SYMBOL,
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on_event=on_event,
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on_error=on_error,
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on_close=on_close,
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on_connect=on_connect,
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)
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ws.connect()
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return ws
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def main():
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print(f"Testing dual WebSocket for {SYMBOL} ({DURATION}s)\n")
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print("Starting WS-1...")
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ws1 = run_ws("WS-1")
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time.sleep(10)
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print(f"\nWS-1 ticks so far: {results['WS-1']['ticks']}")
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print("Starting WS-2...\n")
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ws2 = run_ws("WS-2")
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remaining = DURATION - 10
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time.sleep(remaining)
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print("\nStopping connections...")
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try:
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ws1.disconnect()
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except Exception:
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pass
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try:
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ws2.disconnect()
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except Exception:
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pass
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time.sleep(1)
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print("\n" + "=" * 50)
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print("RESULTS")
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print("=" * 50)
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for label, info in sorted(results.items()):
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status = "alive" if info["alive"] else "dead"
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errs = info["errors"] or ["none"]
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print(f" {label}: {status} ticks={info['ticks']} errors={errs[0]}")
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ws1_ok = results["WS-1"]["ticks"] > 0 and not results["WS-1"]["errors"]
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ws2_ok = results["WS-2"]["ticks"] > 0 and not results["WS-2"]["errors"]
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ws1_died = results["WS-1"]["alive"] is False and results["WS-1"]["ticks"] > 0
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if ws1_ok and ws2_ok:
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print("\n✓ Both connections worked — dual WS is supported")
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elif ws2_ok and ws1_died:
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print("\n✗ WS-2 replaced WS-1 — only 1 connection allowed at a time")
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elif ws1_ok and not ws2_ok:
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print("\n✗ WS-2 was rejected — only 1 connection allowed")
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else:
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print("\n? Inconclusive — check errors above")
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if __name__ == "__main__":
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main()
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