investify-data 0.1.0a18

Python client for the Investify Data API (wos-data-api)

investify-data

Python client for the Investify Data API (wos-data-api) — an AI-agent-first financial-data platform covering Vietnamese market data, company profiles, financial ratios, and searchable document collections.

Installation

pip install investify-data

Python 3.10+ required.

Quickstart — Sync

from investify_data import DataClient

with DataClient(api_key="ifyu_...") as client:
    # Discovery
    categories = client.tables.categories()                  # TableCategoryList
    tables = client.tables.list(category="equities")         # TableList
    schema = client.tables.describe("financial_ratio", group="valuation")  # TableDetail

    # Table query — same operators as REST (eq, in, not_in, gte/lte/gt/lt)
    page = client.tables.query(
        "stock_price_history",
        columns=["symbol", "date", "close"],
        filters={"symbol": "VNM", "date": {"gte": "-30d"}},
        sort="date.desc",
        limit=5,
    )                                                        # RecordPage
    page.rows                                                # list[dict] — raw records

    # Document search (semantic)
    res = client.collections.search(
        "market_news",
        q="lãi suất ngân hàng tác động đến cổ phiếu",
        metadata_filters={"topic": {"in": ["banking", "macro"]}},
        limit=5,
    )                                                        # DocumentResult
    res.hits[0].text, res.hits[0].score

Responses are typed pydantic models (investify_data.models) mirroring the server's response schema — attribute access + autocomplete; .model_dump() for a plain dict. Unknown future fields are kept, not rejected.

Async

import asyncio
from investify_data import AsyncDataClient

async def main():
    async with AsyncDataClient(api_key="ifyu_...") as client:
        page = await client.tables.query("stock_price_history", filters={"symbol": "VNM"}, limit=5)
        print(page.rows)

asyncio.run(main())

Authentication

Three credential types, picked up from the api_key prefix:

Prefix	Role	Use
ifyu_	User	Direct queries scoped to the user's permission
ifys_	Tenant	Use on_behalf_of(user_id=...) for data; admin ops without
ifym_	Super admin	Use on_behalf_of(tenant_id=..., user_id=...) for data

# Tenant key querying on behalf of an end-user
tenant_client = DataClient(api_key="ifys_...")
user_client = tenant_client.on_behalf_of(user_id="550e8400-e29b-41d4-a716-446655440000")

Error handling

from investify_data import DataClient, NotFound, InvalidRequest, Unauthorized

try:
    client.tables.query("nonexistent")
except NotFound:
    ...
except InvalidRequest as err:
    print(err.code, err.detail)
except Unauthorized:
    ...

All exceptions inherit from InvestifyDataError. APIError subclasses (Unauthorized, Forbidden, NotFound, InvalidRequest, RateLimited, ServerError) carry status_code, code, and detail. TransportError wraps network/TLS/timeout failures.

Security

• Never commit your API key. Read it from an env var or secret store.
• The SDK redacts keys in repr(), logs, and error messages — only the 5-char prefix is shown (e.g., ifyu_***).
• HTTPS is the default (https://data.investify.vn). Using http:// with a production key triggers a runtime warning; local/LAN hosts (localhost, 127.0.0.1, investify.k8s) are exempt.
• If you pin a custom base_url, keep it behind TLS.

Configuration

DataClient(
    api_key="ifyu_...",
    base_url="https://data.investify.vn",  # override for dev (e.g. http://investify.k8s:30702)
    timeout=30.0,                           # seconds
    user_agent="my-app/1.0",                # optional
)

Glossary (entity normalization)

Match free-text mentions to canonical terms (trigram, per tenant) — one noun endpoint:

out = client.glossary.match(["vietcombank", "ngân hàng ngoại thương"], kinds=["stock"])
# out.matches -> {"vietcombank": PhraseHits(items=[MatchHit(canonical="...", score=1.0, ...)], total=1)}
# out.unresolved -> phrases with no match

candidates = client.glossary.match(["VCB"], top_k_per_phrase=5)   # ranked candidates (disambiguation)

top_k_per_phrase=1 (default) = normalization; >1 = disambiguation. Same engine.

Pagination

Tables and collection list mode paginate with limit/offset:

offset = 0
while True:
    page = client.tables.query("stock_price_history", filters={"symbol": "VNM"}, limit=1000, offset=offset)
    if not page.rows:
        break
    process(page.rows)
    offset += len(page.rows)

Semantic search does not paginate — it returns the global top-limit by score; there is no offset/cursor. Raise limit (max 100) or narrow with metadata_filters instead.

Troubleshooting

Symptom	Likely cause
Unauthorized (401)	malformed/revoked key — check the ify[usm]_ prefix and key status
Forbidden (403)	service key without user context — use client.on_behalf_of(user_id=...); or ifyu_ key combined with X-User-Id
NotFound (404) on a table/collection	id not in catalog or no permission grant — both look identical by design
Empty rows/hits, no error	permission row-scope ∩ your filters is empty — check tables.describe() and your grant
InvalidRequest (400) UNKNOWN_COLUMN	column not in the catalog, not visible to you, or used in sort without being selected
InvalidRequest (400) on date range in semantic search	date/relative ranges work in list mode only — drop q or move the range filter

Links

• Source: https://gitlab.com/investify-vn/core/investify-data
• Data API docs: internal wos-docs/data-api/

License

MIT