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Hub stub updates (#9577)

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Updates the hub stubs to not fail when no api key is found. For
supporting singleton tenants and default values from sdk 0.1.6.

Also adds the ability to define is_public and description for backup
repo creation on push.
This commit is contained in:
Erick Friis 2023-08-22 16:05:41 -07:00 committed by GitHub
parent ca8232a3c1
commit fc64e6349e
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1 changed files with 29 additions and 7 deletions
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36
libs/langchain/langchain/hub.py
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@ -5,7 +5,6 @@ from typing import TYPE_CHECKING, Any, Optional
from langchain.load.dump import dumps
from langchain.load.load import loads
from langchain.utils import get_from_env
if TYPE_CHECKING:
from langchainhub import Client
@ -20,9 +19,7 @@ def _get_client(api_url: Optional[str] = None, api_key: Optional[str] = None) ->
"langchainhub`."
) from e
api_url = api_url or get_from_env("api_url", "LANGCHAIN_HUB_API_URL")
api_key = api_key or get_from_env("api_key", "LANGCHAIN_HUB_API_KEY", default="")
api_key = api_key or get_from_env("api_key", "LANGCHAIN_API_KEY")
# Client logic will also attempt to load URL/key from environment variables
return Client(api_url, api_key=api_key)
@ -33,14 +30,33 @@ def push(
api_url: Optional[str] = None,
api_key: Optional[str] = None,
parent_commit_hash: Optional[str] = "latest",
new_repo_is_public: bool = False,
new_repo_description: str = "",
) -> str:
"""
Pushes an object to the hub and returns the URL.
Pushes an object to the hub and returns the new commit hash.
:param repo_full_name: The full name of the repo to push to in the format of
`owner/repo`.
:param object: The LangChain to serialize and push to the hub.
:param api_url: The URL of the LangChain Hub API. Defaults to the hosted API service
if you have an api key set, or a localhost instance if not.
:param api_key: The API key to use to authenticate with the LangChain Hub API.
:param parent_commit_hash: The commit hash of the parent commit to push to. Defaults
to the latest commit automatically.
:param new_repo_is_public: Whether the repo should be public. Defaults to
False (Private by default).
:param new_repo_description: The description of the repo. Defaults to an empty
string.
"""
client = _get_client(api_url=api_url, api_key=api_key)
manifest_json = dumps(object)
resp = client.push(
repo_full_name, manifest_json, parent_commit_hash=parent_commit_hash
repo_full_name,
manifest_json,
parent_commit_hash=parent_commit_hash,
new_repo_is_public=new_repo_is_public,
new_repo_description=new_repo_description,
)
commit_hash: str = resp["commit"]["commit_hash"]
return commit_hash
@ -53,7 +69,13 @@ def pull(
api_key: Optional[str] = None,
) -> Any:
"""
Pulls an object from the hub and returns it.
Pulls an object from the hub and returns it as a LangChain object.
:param owner_repo_commit: The full name of the repo to pull from in the format of
`owner/repo:commit_hash`.
:param api_url: The URL of the LangChain Hub API. Defaults to the hosted API service
if you have an api key set, or a localhost instance if not.
:param api_key: The API key to use to authenticate with the LangChain Hub API.
"""
client = _get_client(api_url=api_url, api_key=api_key)
resp: str = client.pull(owner_repo_commit)