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# Copyright (c) Meta Platforms, Inc. and affiliates.
# 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 entrypoint for the TextArena environment."""
from __future__ import annotations
import os
from openenv.core.env_server.http_server import create_app
try:
# When running as installed package
from textarena_env.models import TextArenaAction, TextArenaObservation
from textarena_env.server.environment import TextArenaEnvironment
except ImportError:
# When running uvicorn directly from textarena_env/
from models import TextArenaAction, TextArenaObservation
from .environment import TextArenaEnvironment
def _parse_env_kwargs(prefix: str = "TEXTARENA_KW_") -> dict[str, str]:
"""Collect arbitrary environment kwargs from the process environment."""
env_kwargs: dict[str, str] = {}
for key, value in os.environ.items():
if key.startswith(prefix):
env_key = key[len(prefix) :].lower()
env_kwargs[env_key] = value
return env_kwargs
env_id = os.getenv("TEXTARENA_ENV_ID", "Wordle-v0")
num_players = int(os.getenv("TEXTARENA_NUM_PLAYERS", "1"))
max_turns_env = os.getenv("TEXTARENA_MAX_TURNS")
max_turns = int(max_turns_env) if max_turns_env is not None else None
download_nltk = os.getenv("TEXTARENA_DOWNLOAD_NLTK", "1") in {"1", "true", "True"}
extra_kwargs = _parse_env_kwargs()
# Factory function to create TextArenaEnvironment instances
def create_textarena_environment():
"""Factory function that creates TextArenaEnvironment with config."""
return TextArenaEnvironment(
env_id=env_id,
num_players=num_players,
max_turns=max_turns,
download_nltk=download_nltk,
env_kwargs=extra_kwargs,
)
# Create the FastAPI app
# Pass the factory function instead of an instance for WebSocket session support
app = create_app(
create_textarena_environment,
TextArenaAction,
TextArenaObservation,
env_name="textarena_env",
)
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 textarena.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 textarena.server.app:app --workers 4
"""
import uvicorn
uvicorn.run(app, host=host, port=port)
if __name__ == "__main__":
main()
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