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mt5cli/README.md
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Daichi Narushima b5e82e71c7 Add trading session helpers and extend ThrottledHistoryUpdater (#25)
* Add trading session helpers and extend ThrottledHistoryUpdater

Introduce mt5cli.trading with mt5_trading_session() for Mt5TradingClient
lifecycle management and reusable operational helpers for position-side
detection, margin/volume sizing, and protective order price derivation.

Extend ThrottledHistoryUpdater to validate inputs before updates and to
optionally suppress ValueError, OSError, and missing-method errors without
advancing the throttle timestamp.

Export the new helpers from mt5cli.__init__, add unit tests with mocked
clients, and document migration guidance for downstream projects such as
mteor.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Narrow ThrottledHistoryUpdater suppress_errors handling (#27)

* Narrow ThrottledHistoryUpdater suppress_errors for MT5 capability only

Remove broad AttributeError/TypeError handling from recoverable errors.
Add _is_mt5_client_capability_error() to detect missing history API methods
or non-callable client attributes by message and attribute name.

Generic AttributeError/TypeError values always propagate even when
suppress_errors=True. Update docs and tests accordingly.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Detect non-callable history client methods in suppress_errors

Address review feedback: when a history API attribute exists but is not
callable, Python raises a generic TypeError. Inspect the traceback for
mt5cli.history client call sites so these capability mismatches are still
suppressed without matching all TypeError values.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Address PR review feedback on trading helpers

- Resolve history module path once at import time
- Only treat non-callable TypeErrors as capability errors at the raise site
- Validate SL/TP ratios in determine_order_limits
- Add tests for margin_free edge cases, body-raise shutdown, and internal TypeError propagation
- Clarify ThrottledHistoryUpdater suppress_errors docs
- Split README migration example into trading vs read-only history sessions

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Tighten protective ratio validation and clamp negative margin_free

Add _require_protective_ratio enforcing 0 <= ratio < 1 for SL/TP limits so
a ratio of 1.0 cannot produce zero protective prices. Clamp negative
margin_free to 0.0 in calculate_margin_and_volume before sizing.

Add boundary and negative-margin tests; document constraints in trading API
docs.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
2026-06-11 19:32:52 +09:00

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# mt5cli
[![CI/CD](https://github.com/dceoy/mt5cli/actions/workflows/ci.yml/badge.svg)](https://github.com/dceoy/mt5cli/actions/workflows/ci.yml)
Command-line tool for exporting MetaTrader 5 data to CSV, JSON, Parquet, and SQLite3.
Built on top of [pdmt5](https://github.com/dceoy/pdmt5), a pandas-based data handler for MetaTrader 5.
## Features
- **Multi-format export**: CSV, JSON, Parquet, and SQLite3 output formats
- **Auto-detection**: Format detection from file extensions
- **Comprehensive data access**: Rates, ticks, account info, symbols, orders, positions, and trading history
- **Flexible timeframes**: Named timeframes (M1, H1, D1, etc.) and numeric values
- **Connection management**: Optional credentials, server, and timeout configuration
- **SQLite rate loading**: Load mt5cli-managed rate tables/views for offline workflows
## Installation
```bash
pip install -U mt5cli MetaTrader5
```
## Usage
```bash
# Export account information to CSV
mt5cli -o account.csv account-info
# Export EURUSD M1 rates to Parquet
mt5cli -o rates.parquet rates-from --symbol EURUSD --timeframe M1 \
--date-from 2024-01-01 --count 1000
# Export ticks to JSON
mt5cli -o ticks.json ticks-from --symbol EURUSD \
--date-from 2024-01-01 --count 500 --flags ALL
# Export symbols to SQLite3 with custom table name
mt5cli -o data.db --table symbols symbols --group "*USD*"
# Export with connection credentials
mt5cli --login 12345 --password mypass --server MyBroker-Demo \
-o positions.csv positions
```
Run as a Python module:
```bash
python -m mt5cli -o account.csv account-info
```
## Commands
| Command | Description |
| ---------------------- | ------------------------------------------------------------------------------------------------------------ |
| `rates-from` | Export rates from a start date |
| `rates-from-pos` | Export rates from a start position |
| `latest-rates` | Export latest rates from a start position |
| `rates-range` | Export rates for a date range |
| `ticks-from` | Export ticks from a start date |
| `ticks-range` | Export ticks for a date range |
| `ticks-recent` | Export ticks from a recent trailing window |
| `account-info` | Export account information |
| `terminal-info` | Export terminal information |
| `version` | Export MetaTrader 5 version information |
| `last-error` | Export the last error information |
| `symbols` | Export symbol list |
| `symbol-info` | Export symbol details |
| `symbol-info-tick` | Export the last tick for a symbol |
| `minimum-margins` | Export minimum-volume buy and sell margin requirements |
| `market-book` | Export market depth (order book) |
| `orders` | Export active orders |
| `positions` | Export open positions |
| `history-orders` | Export historical orders |
| `history-deals` | Export historical deals |
| `recent-history-deals` | Export historical deals from a recent trailing window |
| `mt5-summary` | Export terminal/account status summary |
| `order-check` | Check funds sufficiency for a trade request |
| `order-send` | Send a trade request to the trade server (`--yes` required) |
| `collect-history` | Bundle rates, ticks, history-orders, and history-deals for one or more symbols into a single SQLite database |
Use `order-check` to validate a request payload before running `order-send --yes`.
### `collect-history`
Collect several historical datasets per symbol into one SQLite database in a single MT5 session. Pick datasets with repeatable `--dataset` (default: all four), choose conflict behavior with `--if-exists append|replace|fail` (default: `fail`), and optionally derive `cash_events` / `positions_reconstructed` views from `history_deals` via `--with-views`.
```bash
mt5cli -o history.db collect-history \
--symbol EURUSD --symbol GBPUSD \
--date-from 2024-01-01 --date-to 2024-02-01 \
--dataset rates --dataset history-deals \
--timeframe M1 --flags ALL --if-exists append --with-views
```
History orders and deals are fetched per symbol and concatenated, so the symbol filter is applied consistently across all datasets. The `cash_events` view is derived from symbol-filtered `history_deals`, so account-level cash events with empty or non-matching symbols may be excluded. The `rates` table records the requested `timeframe` so appended runs at different timeframes remain distinguishable. The `positions_reconstructed` view aggregates trade deals by `position_id`, excludes positions without closing-side entries, and uses volume-weighted open/close prices; reversal deals (`DEAL_ENTRY_INOUT`) are reported via `volume_reversal` / `reversal_count` columns.
### Incremental history SDK
For automated pipelines, use the importable incremental API instead of re-fetching fixed date ranges:
```python
from pdmt5 import Mt5Config, Mt5DataClient
from mt5cli import Dataset, update_history, update_history_with_config
# Reuse an already-connected pdmt5 client (does not open/close MT5)
client = Mt5DataClient(config=Mt5Config(login=12345))
client.initialize_and_login_mt5()
try:
update_history(
client=client,
output="history.db",
symbols=["EURUSD", "GBPUSD"],
datasets={Dataset.rates, Dataset.history_deals},
timeframes=["M1", "H1"], # default: all fixed MT5 timeframes
lookback_hours=24,
create_rate_views=True,
with_views=True,
include_account_events=True,
)
finally:
client.shutdown()
# Standalone wrapper that opens and closes MT5 for you
update_history_with_config(
output="history.db",
symbols=["EURUSD"],
config=Mt5Config(login=12345),
)
```
- **`collect-history`**: explicit date-range export into SQLite.
- **`update_history`**: incremental append based on existing SQLite `MAX(time)` per symbol (and timeframe for rates); account-level deals use a separate cursor when `include_account_events=True`.
- **`rates` table**: normalized storage with `symbol` and `timeframe` columns.
- **Rate compatibility views**: mt5cli manages all `rate_*` views. Naming is `rate_<symbol>__<timeframe>` when a symbol has one timeframe, otherwise `rate_<symbol>__<granularity>_<timeframe>` (for example `rate_EURUSD__M1_1`). Stale `rate_*` views are dropped and recreated when rates change for offline tools such as mteor optimize.
- **Rate view resolution**: use `resolve_rate_view_name()` / `resolve_rate_view_names()` to map symbols and granularities to existing SQLite compatibility views without creating databases. Both accept `None` (or a missing path) and return deterministic default names unless `require_existing=True`.
- **Rate view loading**: use `load_rate_data()` / `load_rate_data_from_connection()` to load a SQLite rate table or view into a `DatetimeIndex` DataFrame.
- **Multi-series rate loading**: use `build_rate_targets()` to build neutral `RateTarget(symbol, timeframe)` pairs, `resolve_rate_tables()` to map them to table/view names (pass `require_existing=True` for strict resolution), and `load_rate_series_from_sqlite()` to load them into a mapping keyed by `(symbol, integer timeframe)`. The loader requires existing managed views unless `explicit_tables` is supplied, and rejects duplicate `(symbol, timeframe)` targets.
- **Multi-account latest rates**: use `collect_latest_rates_for_accounts()` with `AccountSpec` to read the latest bars for several account groups, merged into a `(symbol, integer timeframe)` mapping. For long-running pollers, `collect_latest_rates_for_accounts_with_retries()` adds bounded exponential backoff that retries only `pdmt5.Mt5TradingError` / `pdmt5.Mt5RuntimeError` and re-raises once `retry_count` is exhausted.
- **Latest closed bars**: use `collect_latest_closed_rates_for_accounts()` when downstream logic must exclude the still-forming current bar. It fetches `count + 1` bars at `start_pos=0`, drops the last row with `drop_forming_rate_bar()`, and validates each series is non-empty. `collect_latest_closed_rates_by_granularity()` returns the same data keyed by `(symbol, granularity_name)` such as `("EURUSD", "M1")`.
```python
from mt5cli import AccountSpec, collect_latest_closed_rates_by_granularity
rates = collect_latest_closed_rates_by_granularity(
[AccountSpec(symbols=["EURUSD", "GBPUSD"], login=12345)],
["M1", "H1"],
count=500,
retry_count=3,
)
eurusd_m1 = rates["EURUSD", "M1"] # closed bars only
```
- **Credential resolution**: use `resolve_account_spec()` / `resolve_account_specs()` to merge explicit override values over `AccountSpec` fields and expand `${ENV_VAR}` placeholders (via `substitute_env_placeholders()`), raising `ValueError` for missing variables. This keeps secrets out of plan/config files without coupling to any strategy code.
- **Throttled history updates**: use `ThrottledHistoryUpdater` to wrap `update_history()` with a minimum `interval_seconds` between successful runs (monotonic clock). Call `should_update()` / `update(client, symbols)` from an application loop; errors propagate by default, or pass `suppress_errors=True` to swallow recoverable `Mt5*Error`, `sqlite3.Error`, `ValueError`, `OSError`, and MT5 client capability errors for history API methods without advancing the throttle (other `AttributeError` / `TypeError` values always propagate).
- **Trading session helpers**: use `mt5_trading_session()` for a trading-capable `pdmt5.Mt5TradingClient` that initializes/logs in via `Mt5Config.path` and always shuts down safely. Pair with `detect_position_side()`, `calculate_margin_and_volume()`, and `determine_order_limits()` for generic position and sizing utilities. The read-only `mt5_session()` / `Mt5CliClient` SDK is unchanged.
- **Granularity-keyed rate loading**: `load_rate_series_by_granularity()` builds targets with `build_rate_targets()`, loads them with `load_rate_series_from_sqlite()`, and returns a mapping keyed by `(symbol | None, granularity_name)` such as `("EURUSD", "M1")` to reduce downstream boilerplate.
- **MT5 session helper**: use the `mt5_session()` context manager to attach to (or, when `Mt5Config.path` is set, launch) an MT5 terminal, log in, and yield a connected `Mt5CliClient` that shuts down on exit.
- **SQLite export helpers**: use `export_dataframe_to_sqlite()` for append mode, optional index export, and post-write deduplication by key columns.
- **Recent ticks and margins**: `recent_ticks()` and `minimum_margins()` SDK helpers (and matching CLI commands) cover common downstream read-only queries.
## Requirements
- Python 3.11+
- Windows OS (MetaTrader 5 requirement)
- MetaTrader 5 platform installed
### Migration note for mteor
Replace local MT5 lifecycle and trading helper code with mt5cli imports:
```python
# Before (local mteor helpers)
# with local_mt5_trading_session(config) as client:
# side = local_detect_position_side(client, symbol)
# sizing = local_calculate_margin_and_volume(client, symbol, unit_ratio, preserved_ratio)
# limits = local_determine_order_limits(client, symbol, side, sl_ratio, tp_ratio)
# After (mt5cli shared layer)
from pdmt5 import Mt5Config
from mt5cli import (
calculate_margin_and_volume,
detect_position_side,
determine_order_limits,
mt5_trading_session,
)
with mt5_trading_session(
Mt5Config(path=terminal_path, login=login), retry_count=2
) as client:
side = detect_position_side(client, symbol)
sizing = calculate_margin_and_volume(
client, symbol, unit_margin_ratio=0.5, preserved_margin_ratio=0.2
)
if side is not None:
limits = determine_order_limits(
client,
symbol,
side,
stop_loss_limit_ratio=0.01,
take_profit_limit_ratio=0.02,
)
```
Throttled history updates use a separate read-only session:
```python
from pdmt5 import Mt5Config, Mt5DataClient
from mt5cli import ThrottledHistoryUpdater
updater = ThrottledHistoryUpdater(
output="history.db", interval_seconds=60, suppress_errors=True
)
client = Mt5DataClient(config=Mt5Config(login=login))
client.initialize_and_login_mt5()
try:
updater.update(client, ["EURUSD"])
finally:
client.shutdown()
```
Read-only collectors can keep using `mt5_session()` and `Mt5CliClient` without changes.
## Development
```bash
git clone https://github.com/dceoy/mt5cli.git
cd mt5cli
uv sync
```
## License
[MIT](LICENSE)