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"""Example FastAPI server for llama.cpp. | ||
To run this example: | ||
```bash | ||
pip install fastapi uvicorn sse-starlette pydantic-settings | ||
export MODEL=../models/7B/... | ||
``` | ||
Then run: | ||
``` | ||
uvicorn llama_cpp.server.app:create_app --reload | ||
``` | ||
or | ||
``` | ||
python3 -m llama_cpp.server | ||
``` | ||
Then visit http://localhost:8000/docs to see the interactive API docs. | ||
""" | ||
from __future__ import annotations | ||
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||
import os | ||
import sys | ||
import argparse | ||
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import uvicorn | ||
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from app import create_app | ||
from llama_cpp.server.settings import ( | ||
Settings, | ||
ServerSettings, | ||
ModelSettings, | ||
ConfigFileSettings, | ||
) | ||
from llama_cpp.server.cli import add_args_from_model, parse_model_from_args | ||
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def main(): | ||
description = "🦙 Llama.cpp python server. Host your own LLMs!🚀" | ||
parser = argparse.ArgumentParser(description=description) | ||
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add_args_from_model(parser, Settings) | ||
parser.add_argument( | ||
"--config_file", | ||
type=str, | ||
help="Path to a config file to load.", | ||
default="/home/test/api_server.cfg", | ||
) | ||
server_settings: ServerSettings | None = None | ||
model_settings: list[ModelSettings] = [] | ||
args = parser.parse_args() | ||
try: | ||
# Load server settings from config_file if provided | ||
config_file = os.environ.get("CONFIG_FILE", args.config_file) | ||
if config_file: | ||
if not os.path.exists(config_file): | ||
raise ValueError(f"Config file {config_file} not found!") | ||
with open(config_file, "rb") as f: | ||
# Check if yaml file | ||
if config_file.endswith(".yaml") or config_file.endswith(".yml"): | ||
import yaml | ||
import json | ||
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config_file_settings = ConfigFileSettings.model_validate_json( | ||
json.dumps(yaml.safe_load(f)) | ||
) | ||
else: | ||
config_file_settings = ConfigFileSettings.model_validate_json(f.read()) | ||
server_settings = ServerSettings.model_validate(config_file_settings) | ||
model_settings = config_file_settings.models | ||
else: | ||
server_settings = parse_model_from_args(ServerSettings, args) | ||
model_settings = [parse_model_from_args(ModelSettings, args)] | ||
except Exception as e: | ||
print(e, file=sys.stderr) | ||
parser.print_help() | ||
sys.exit(1) | ||
assert server_settings is not None | ||
assert model_settings is not None | ||
app = create_app( | ||
server_settings=server_settings, | ||
model_settings=model_settings, | ||
) | ||
uvicorn.run( | ||
app, | ||
host=os.getenv("HOST", server_settings.host), | ||
port=int(os.getenv("PORT", server_settings.port)), | ||
ssl_keyfile=server_settings.ssl_keyfile, | ||
ssl_certfile=server_settings.ssl_certfile, | ||
) | ||
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if __name__ == "__main__": | ||
main() |
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