fm-sdk-python
Python SDK for the Flexemarkets API.
⚠️ Alpha software — the API is not stable
fm-sdk is pre-1.0 and under active development. Anything public may be added, renamed, or removed in any release, including in ways that break code that compiles and runs today, and without a deprecation period first. Under semantic versioning a
0.xrelease carries no compatibility promise, and that is how these versions are used: treat every0.xbump as potentially breaking.Pin an exact version rather than a range (
fm-sdk==0.2.0, not>=0.2), read the upgrade notes for the release you are moving to, and expect to change code when you move.Not recommended for production use.
Requirements
- Python 3.11+
Install
pip install fm-sdk
Configuration
The SDK loads credentials and endpoint from these sources (highest priority first):
- Arguments passed to
Flexemarkets.connect() - Files
~/.fm/credentialand~/.fm/endpoint(Java.propertiesformat) - Environment variable
FM_API_URL(defaults tohttps://api.flexemarkets.com)
Credential file
Create ~/.fm/credential:
account=myaccount
email=user@example.com
password=secret
Or use a bearer token:
token=eyJhbGciOiJIUzI1NiJ9...
Endpoint file
Create ~/.fm/endpoint:
endpoint=https://api.flexemarkets.com/api/marketplaces/123
SDK usage
from fm import Flexemarkets
# Connect
fm = Flexemarkets.connect(
credential="~/.fm/credential",
endpoint="https://api.flexemarkets.com/api/marketplaces/123",
client_description="my-bot",
)
# REST API
marketplace_id = fm.endpoint_marketplace_id
markets = fm.markets(marketplace_id)
market_id = markets[0].id
session = fm.session(marketplace_id)
holdings = fm.holdings(marketplace_id)
# Submit orders
order = fm.submit_limit(marketplace_id, market_id, "BUY", units=1, price=950)
fm.submit_cancel(marketplace_id, market_id, order.id)
# Live market data: a desk keeps the books and tapes for you -- it seeds
# them over REST, applies deltas, and re-seeds after a sequence gap.
with fm.desk(marketplace_id) as desk:
desk.on_book_change(market_id, lambda book: print(book.best_price("BUY")))
desk.on_session_change(lambda session: print(session.state))
desk.on_holding_change(lambda holding: print(holding.cash))
one = desk.book(market_id) # one market
for book in desk.books(): # every market in the marketplace
print(book.symbol, book.best_price("BUY"))
fm.close()
The client also works as a context manager:
with Flexemarkets.connect(credential, endpoint, "my-bot") as fm:
...
Applications
ticker
Live terminal display of order book best bid/ask, spread, and recent trade prices.
python3.11 ticker.py -C ~/.fm/credential -E 123
Options:
| Flag | Description |
|---|---|
-C, --credential |
Credential file path or bearer token |
-E, --endpoint |
Marketplace id, endpoint file path, or URL |
Output:
fm-ticker OPEN
Symbol Bid Ask Spread Last trades
------ ------ ------ ------ -----------
AAPL $ 9.50 $10.50 $ 1.00 $9.50 $10.00
IBM $ 4.00 $ 5.00 $ 1.00 $4.50
The display refreshes on each order book update. Press Ctrl-C to stop.
1 maintainer
Metadata
1 maintainer
Release files for fm-sdk 0.5.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| fm_sdk-0.5.0.tar.gz | 112.1 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| fm_sdk-0.5.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 166.8 kB
Release files / fm_sdk-0.5.0.tar.gz
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| Size | 112.1 kB |
| Tags | Source |
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