Switch data source to Finnhub API; remove synthetic data fallback

Adds FinnhubDataProvider as a drop-in replacement for ForexDataProvider.
Rate limit or API errors raise DataUnavailableError immediately — the
Telegram bot shows a clean per-TF error card rather than fake prices.

- data_provider_finnhub.py: Finnhub client, OANDA symbol mapping,
  4h resampled from 60-min candles, shared module-level rate limiter
  (60 calls/min free tier), full OHLCV validation copied from original
- signal_aggregator.py: import FinnhubDataProvider alias ForexDataProvider
- config.py: add finnhub_api_key field (FINNHUB_API_KEY env var overrides)
- telegram_bot.py: remove synthetic-data warning and _SUPPORTED_PAIRS;
  unsupported pairs now show the engine's "data unavailable" card
- requirements.txt: add finnhub-python>=1.0

Set FINNHUB_API_KEY env var before running. main branch is untouched.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

This commit is contained in:

Harwinder

2026-05-04 20:12:41 -04:00

parent e6ef6e8c9d

commit 43cc4bdd42

5 changed files with 397 additions and 14 deletions

requirements.txt

View File

@@ -2,3 +2,4 @@ numpy>=1.24
 pandas>=2.0
 requests>=2.28
 python-telegram-bot[job-queue]>=20.0
 finnhub-python>=1.0