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examples: add streaming demos for Python and Rust

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Python and Rust both lacked a standalone "streaming indicators" example
that mirrors examples/node/streaming.js — the quickstart docs cover the
pattern, but a runnable file makes the parity visible across all four
languages.

* examples/python/streaming.py — argparse-driven synthetic streaming demo
  feeding SMA(20) / EMA(20) / RSI(14) / MACD(12,26,9), tagging BUY?/SELL?
  candidates when RSI extremes and MACD-histogram direction agree.
* examples/rust/src/bin/streaming.rs — same demo as a wickra-examples
  binary, reusing the seeded LCG so its first 40 rows are bit-identical
  to the Python (and Node) sibling — a strong cross-language consistency
  signal verified by running both side by side.
* examples/README.md gains a `streaming` row in the Rust and Python tables.
This commit is contained in:
kingchenc
2026-05-23 00:13:38 +02:00
parent d87005577e
commit 5a4cf66022
3 changed files with 212 additions and 0 deletions
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examples/README.md
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@@ -11,6 +11,7 @@ The Rust examples live in the `wickra-examples` workspace member crate.
| Example | What it does | Run |
| --- | --- | --- |
| `streaming.rs` | Feed a synthetic price series through SMA / EMA / RSI / MACD tick by tick. | `cargo run -p wickra-examples --bin streaming` |
| `backtest.rs` | Compute a basket of indicators over an OHLCV CSV and print a summary. | `cargo run -p wickra-examples --bin backtest -- <ohlcv.csv>` |
| `fetch_btcusdt.rs` | Download real BTCUSDT klines from the Binance REST API into `examples/data/`. | `cargo run -p wickra-examples --bin fetch_btcusdt` |
| `live_binance.rs` | Stream live Binance klines through an indicator over a resilient WebSocket. | `cargo run -p wickra-examples --bin live_binance` |
@@ -19,6 +20,7 @@ The Rust examples live in the `wickra-examples` workspace member crate.
| Example | What it does | Run |
| --- | --- | --- |
| `streaming.py` | Feed a synthetic price series through SMA / EMA / RSI / MACD tick by tick. | `python -m examples.python.streaming` |
| `backtest.py` | Basket of indicators over an OHLCV CSV. | `python -m examples.python.backtest <ohlcv.csv>` |
| `live_trading.py` | Live Binance feed → RSI / MACD / Bollinger → signals. | `python -m examples.python.live_trading --symbol BTCUSDT --interval 1m` |
| `multi_timeframe.py` | Resample a 1-minute CSV to coarser timeframes and compare. | `python -m examples.python.multi_timeframe <1m.csv>` |