mirror of
https://github.com/hwchase17/langchain
synced 2024-11-08 07:10:35 +00:00
36 lines
877 B
Python
36 lines
877 B
Python
from typing import Optional
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import typer
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from typing_extensions import Annotated
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from langchain_cli.namespaces import hub, serve
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app = typer.Typer(no_args_is_help=True, add_completion=False)
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app.add_typer(hub.hub, name="hub", help=hub.__doc__)
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app.add_typer(serve.serve, name="serve", help=serve.__doc__)
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@app.command()
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def start(
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*,
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port: Annotated[
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Optional[int], typer.Option(help="The port to run the server on")
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] = None,
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host: Annotated[
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Optional[str], typer.Option(help="The host to run the server on")
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] = None,
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) -> None:
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"""
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Start the LangServe instance, whether it's a hub package or a serve project.
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"""
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# try starting hub package, if error, try langserve
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try:
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hub.start(port=port, host=host)
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except KeyError:
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serve.start(port=port, host=host)
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if __name__ == "__main__":
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app()
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