mirror of
https://github.com/hwchase17/langchain
synced 2024-11-10 01:10:59 +00:00
39 lines
1.0 KiB
Python
39 lines
1.0 KiB
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 app as app_namespace
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from langchain_cli.namespaces import template as template_namespace
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app = typer.Typer(no_args_is_help=True, add_completion=False)
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app.add_typer(
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template_namespace.package_cli, name="template", help=template_namespace.__doc__
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)
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app.add_typer(app_namespace.app_cli, name="app", help=app_namespace.__doc__)
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@app.command()
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def serve(
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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 app, whether it's a template or an app.
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"""
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# try starting template package, if error, try langserve
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try:
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template_namespace.serve(port=port, host=host)
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except KeyError:
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app_namespace.serve(port=port, host=host)
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if __name__ == "__main__":
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app()
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