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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 for the Echo Environment.
This module creates an HTTP server that exposes the EchoEnvironment
over HTTP and WebSocket endpoints, compatible with MCPToolClient.
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:
uv run --project . server
"""
# Support both in-repo and standalone imports
try:
# In-repo imports (when running from OpenEnv repository)
from openenv.core.env_server.http_server import create_app
from openenv.core.env_server.mcp_types import CallToolAction, CallToolObservation
from .echo_environment import EchoEnvironment
except ImportError:
# Standalone imports (when environment is standalone with openenv from pip)
from openenv.core.env_server.http_server import create_app
from openenv.core.env_server.mcp_types import CallToolAction, CallToolObservation
from server.echo_environment import EchoEnvironment
# Create the app with web interface and README integration
# Pass the class (factory) instead of an instance for WebSocket session support
# Use MCP types for action/observation since this is a pure MCP environment
app = create_app(
EchoEnvironment, CallToolAction, CallToolObservation, env_name="echo_env"
)
def main():
"""
Entry point for direct execution via uv run or python -m.
This function enables running the server without Docker:
uv run --project . server
python -m envs.echo_env.server.app
openenv serve echo_env
"""
import uvicorn
uvicorn.run(app, host="0.0.0.0", port=8000)
if __name__ == "__main__":
main()
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