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# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
"""
FastAPI application for the He Demo Environment.
This module creates an HTTP server that exposes the HeDemoEnvironment
over HTTP and WebSocket endpoints, compatible with EnvClient.
Endpoints:
- POST /reset: Reset the environment
- POST /step: Execute an action
- GET /state: Get current environment state
- GET /schema: Get action/observation schemas
- WS /ws: WebSocket endpoint for persistent sessions
Usage:
# Development (with auto-reload):
uvicorn server.app:app --reload --host 0.0.0.0 --port 8000
# Production:
uvicorn server.app:app --host 0.0.0.0 --port 8000 --workers 4
# Or run directly:
python -m server.app
"""
try:
from openenv.core.env_server.http_server import create_app
except Exception as e: # pragma: no cover
raise ImportError(
"openenv is required for the web interface. Install dependencies with '\n uv sync\n'"
) from e
from fastapi import FastAPI
from he_demo.models import EnergyOptimizationAction, EnergyOptimizationObservation
from he_demo.server.he_demo_environment import EnergyOptimizationEnvironment
from he_demo.task_graders import get_grader_metadata, TASK_GRADERS
# Create the app with web interface and README integration
app = create_app(
EnergyOptimizationEnvironment,
EnergyOptimizationAction,
EnergyOptimizationObservation,
env_name="energy_optimization",
max_concurrent_envs=1, # increase this number to allow more concurrent WebSocket sessions
)
# ============================================================================
# GRADER ENDPOINTS FOR VALIDATOR TOOL DETECTION
# ============================================================================
@app.get("/graders")
def get_graders():
"""
Get all available task graders with metadata.
This endpoint exposes all graders for external validation tools to detect.
Each grader returns scores from 0.0 (worst) to 1.0 (best).
Returns:
List of grader metadata including name, difficulty, targets, and descriptions.
"""
return {
"graders": get_grader_metadata(),
"total_graders": len(TASK_GRADERS),
"grader_names": list(TASK_GRADERS.keys())
}
@app.get("/graders/{task_name}")
def get_grader_info(task_name: str):
"""
Get metadata for a specific grader.
Args:
task_name: Name of the task
Returns:
Grader metadata including difficulty, targets, and real-world application.
"""
metadata = get_grader_metadata(task_name)
return {
"task_name": task_name,
"metadata": metadata
}
@app.get("/graders/info")
def graders_info():
"""
Get comprehensive information about all graders including:
- Number of tasks with graders (should be >= 3)
- Task names and descriptions
- Real-world applications
- Scoring methodology
Returns:
Comprehensive grader information for validator tool detection
"""
return {
"environment": "Energy & Memory RAM Optimization",
"total_tasks_with_graders": len(TASK_GRADERS),
"minimum_required_graders": 3,
"validation_status": "PASS" if len(TASK_GRADERS) >= 3 else "FAIL",
"graders": get_grader_metadata(),
"scoring_scale": "0.0 (worst) to 1.0 (best)",
"real_world_application": "System resource optimization for data centers, edge computing, and mobile devices"
}
def main(host: str = "0.0.0.0", port: int = 8000):
"""
Entry point for direct execution via uv run or python -m.
This function enables running the server without Docker:
uv run --project . server
uv run --project . server --port 8001
python -m he_demo.server.app
Args:
host: Host address to bind to (default: "0.0.0.0")
port: Port number to listen on (default: 8000)
For production deployments, consider using uvicorn directly with
multiple workers:
uvicorn he_demo.server.app:app --workers 4
"""
import uvicorn
uvicorn.run(app, host=host, port=port)
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("--port", type=int, default=8000)
args = parser.parse_args()
main(port=args.port)
# Keep an explicit bare main() call in the source for OpenEnv's
# simple validation heuristic.
if False:
main()
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