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🇮🇹 Borsa Italiana Provider (borsa_italiana)

The Borsa Italiana provider fetches financial data from borsaitaliana.it using the borsa-italiana-scraping library. It supports stocks, bonds (including BTP), and ETFs listed on Borsa Italiana markets (MTA, MOT, ETFPlus).

⚙️ How it Works

  1. Identifier: An ISIN code (e.g., IT0003128367 for ENEL S.p.A.).
  2. Identifier Types: Only ISIN is accepted.
  3. provider_params: Optional language field ("en" or "it", default "en"). Controls the language of asset names, metadata descriptions, and the provider URL.

💱 Currency

All data is returned in EUR — Borsa Italiana is an Italian exchange.

💰 Current Value (get_current_value)

  • Uses ottieni_prezzo_corrente(isin) from the scraping library.
  • Strategy (fastest first):
    1. Fetches the latest point from the historical API (1M period).
    2. Falls back to scraping the instrument page (ottieni_scheda).
  • Returns PrezzoCorrente with price, date, currency, and source ("api" or "scraping").

📈 Historical Data (get_history_value)

  • Uses ottieni_storico(isin, periodo) from the grafici.borsaitaliana.it JSON API.
  • Returns full OHLCV data (open, high, low, close, volume) for each trading day.
  • Period selection: The API uses fixed windows (1M, 3M, 6M, 1Y, 3Y, 5Y, MAX). The provider automatically selects the smallest period that covers the requested start_date..end_date range.
  • Results are filtered in-memory to the exact requested date range.
  • The core handles gap filling (weekends, holidays) — the plugin returns only actual trading days.
  • Uses cerca(query) — the internal JSON search engine of borsaitaliana.it.
  • Searches across all instrument types: stocks, bonds, ETFs, ETC/ETN.
  • Dual-language results: emits two entries per ISIN (🇬🇧 English + 🇮🇹 Italiano) with flag emojis in display_name. Each result carries provider_params: {language: "en"|"it"} so the user's selection is propagated on assignment.
  • Results are deduplicated by (ISIN, language) pair.

📋 Metadata (fetch_asset_metadata)

  • Uses ottieni_scheda(isin, lingua) — scrapes the instrument detail page in the configured language.
  • Extracts:
    • Name: from <h1> tag on the page, appended with language flag emoji (e.g., "ENEL S.p.A. 🇬🇧").
    • Type: mapped from instrument type field (e.g., obbligazione → BOND, azione → STOCK, etf → ETF).
    • Currency: negotiation currency (default EUR).
    • Description: assembled from page description, market, issuer, maturity date, coupon rate, structure, tipology, coupon frequency.
    • Ticker: if available on the page (mainly for stocks).
    • Geographic Area: inferred from issuer name (e.g., "Republic of Italy" → ITA).
    • Sector: inferred from settore (stocks) or tipologia (bonds) fields.
  • Bond-specific fields available in the raw data: cedola_annua, scadenza, emittente, rendimento_lordo, struttura_bond, frequenza_cedola.

🔗 get_asset_url

Returns https://www.borsaitaliana.it/borsa/search/scheda.html?code={ISIN}&lang={language} — the lang parameter follows the user's provider_params.language selection (default en).

🔌 Technical Details

HTTP Session

The provider maintains a shared Sessione instance across all calls:

  • WAF handling: The library manages Imperva WAF cookies automatically.
  • JWT token: Extracted from the interactive chart page (required for the grafici.borsaitaliana.it API).
  • Rate limiting: Built-in minimum pause between requests (0.5s default).
  • Shutdown: The session is closed via shutdown() at app teardown.

params_schema (Dynamic UI Form)

The provider exposes one optional parameter via params_schema:

Key Type Options Default Description
language select en (🇬🇧 English), it (🇮🇹 Italiano) en Language for names and metadata

Uses option_labels for human-readable display in the frontend dropdown.

Error Handling

Library Exception Mapped Error Code Meaning
StrumentoNonTrovato NOT_FOUND ISIN not recognized
DatiNonDisponibili NO_DATA No data available (market closed, delisted)
RicercaNonDisponibile FETCH_ERROR Search endpoint down
BorsaItalianaErrore FETCH_ERROR Generic library error

Dependencies

borsa-italiana-scraping @ git+https://github.com/Librefolio/borsaItaliana-scraping.git

Transitive: httpx, beautifulsoup4, lxml.

🧪 Test Cases

Identifier Type Description
IT0003128367 ISIN ENEL S.p.A. (stock)

Search test query: "ENEL".