[Backend] Simulate Engine - Real-time Signal Detection #19

shoko · 2026-04-08T13:26:34+02:00

shoko commented

2026-04-08 13:26:34 +02:00

Summary

Implement simulate engine for real-time signal detection via REST polling as described in issue #8.

Changes Made

Modified files:

src/backend/app/services/simulate/engine.py - Full SimulateEngine implementation:
- REST polling for current prices using AveCloudClient
- Condition matching for real-time data (price_drop, price_rise, volume_spike, price_level)
- Configurable check interval (default 60s for free tier)
- Signal logging with user-initiated start/stop
- Background execution without blocking
src/backend/app/api/simulate.py - Simulation API endpoints:
- POST /api/bots/{id}/simulate - Start simulation (async, background execution)
- GET /api/bots/{id}/simulate/{run_id} - Get simulation status/signals
- GET /api/bots/{id}/simulations - List all simulations for bot
- POST /api/bots/{id}/simulate/{run_id}/stop - Stop running simulation
- JWT authentication and ownership validation on all endpoints
- Free tier enforces 60s minimum check interval
src/backend/app/db/schemas.py - Added check_interval field to SimulationCreate

Features Implemented

Real-time REST Polling - Fetches current token prices from AVE Cloud API
Condition Matching - Supports price_drop, price_rise, volume_spike, price_level conditions
Configurable Interval - Default 60s for free tier, pro tier can use shorter intervals
Signal Generation - Logs signals when conditions are met
Async/Background Execution - Simulations run in background without blocking
Auto-execute Flag - Future support for automatic signal execution
Simulation Signal History - Signals stored in database via Signal model

User Notice

Free tier users get REST polling every 60s. Pro tier users can use shorter intervals.

Dependencies

Depends on issue #7 (Backtest Engine) which was merged in PR #18

Fixes #8

## Summary Implement simulate engine for real-time signal detection via REST polling as described in issue #8. ### Changes Made **Modified files:** - `src/backend/app/services/simulate/engine.py` - Full SimulateEngine implementation: - REST polling for current prices using AveCloudClient - Condition matching for real-time data (price_drop, price_rise, volume_spike, price_level) - Configurable check interval (default 60s for free tier) - Signal logging with user-initiated start/stop - Background execution without blocking - `src/backend/app/api/simulate.py` - Simulation API endpoints: - POST /api/bots/{id}/simulate - Start simulation (async, background execution) - GET /api/bots/{id}/simulate/{run_id} - Get simulation status/signals - GET /api/bots/{id}/simulations - List all simulations for bot - POST /api/bots/{id}/simulate/{run_id}/stop - Stop running simulation - JWT authentication and ownership validation on all endpoints - Free tier enforces 60s minimum check interval - `src/backend/app/db/schemas.py` - Added `check_interval` field to SimulationCreate ### Features Implemented 1. **Real-time REST Polling** - Fetches current token prices from AVE Cloud API 2. **Condition Matching** - Supports price_drop, price_rise, volume_spike, price_level conditions 3. **Configurable Interval** - Default 60s for free tier, pro tier can use shorter intervals 4. **Signal Generation** - Logs signals when conditions are met 5. **Async/Background Execution** - Simulations run in background without blocking 6. **Auto-execute Flag** - Future support for automatic signal execution 7. **Simulation Signal History** - Signals stored in database via Signal model ### User Notice Free tier users get REST polling every 60s. Pro tier users can use shorter intervals. ### Dependencies - Depends on issue #7 (Backtest Engine) which was merged in PR #18 ## Related Issue Fixes #8

shoko added 1 commit 2026-04-08 13:26:34 +02:00

feat: implement Simulate Engine for real-time signal detection 965efa122b

Implement simulate engine for real-time signal detection via REST polling.

Changes:
- SimulateEngine service with configurable check interval (default 60s for free tier)
- REST polling for current prices using AveCloudClient
- Condition matching for real-time data (price_drop, price_rise, volume_spike, price_level)
- Signal logging with user-initiated start/stop
- Simulation API endpoints:
  - POST /api/bots/{id}/simulate - Start simulation
  - GET /api/bots/{id}/simulate/{run_id} - Get status/signals
  - GET /api/bots/{id}/simulations - List all simulations
  - POST /api/bots/{id}/simulate/{run_id}/stop - Stop simulation
- Updated SimulationCreate schema with check_interval field
- Free tier limited to 60s minimum check interval
- Signals stored in database for simulation signal history

Depends on issue #7 (Backtest Engine) which was merged in PR #18

han approved these changes 2026-04-08 14:56:42 +02:00

han left a comment

First-time contributor

lgtm

shoko merged commit a59a1ccd97 into main

2026-04-08 14:57:29 +02:00

shoko referenced this issue from a commit

2026-04-08 14:57:29 +02:00

Merge pull request '[Backend] Simulate Engine - Real-time Signal Detection' (#19) from fix/issue-8 into main

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Reference: shoko/randebu#19