Files
langchain/libs/community
Miroslav aee55eda39 community: Skip Login to HuggubgFaceHub when token is not set (#21561)
Thank you for contributing to LangChain!

- [ ] **HuggingFaceEndpoint**: "Skip Login to HuggingFaceHub"
  - Where:  langchain, community, llm, huggingface_endpoint
 


- [ ] **PR message**: ***Delete this entire checklist*** and replace
with
- **Description:** Skip login to huggingface hub when when
`huggingfacehub_api_token` is not set. This is needed when using custom
`endpoint_url` outside of HuggingFaceHub.
- **Issue:** the issue # it fixes
https://github.com/langchain-ai/langchain/issues/20342 and
https://github.com/langchain-ai/langchain/issues/19685
    - **Dependencies:** None


- [ ] **Add tests and docs**: 
  1. Tested with locally available TGI endpoint
  2.  Example Usage
```python
from langchain_community.llms import HuggingFaceEndpoint

llm = HuggingFaceEndpoint(
    endpoint_url='http://localhost:8080',
    server_kwargs={
        "headers": {"Content-Type": "application/json"}
    }
)
resp = llm.invoke("Tell me a joke")
print(resp)
```
 Also tested against HF Endpoints
 ```python
 from langchain_community.llms import HuggingFaceEndpoint
huggingfacehub_api_token = "hf_xyz"
repo_id = "mistralai/Mistral-7B-Instruct-v0.2"
llm = HuggingFaceEndpoint(
    huggingfacehub_api_token=huggingfacehub_api_token,
    repo_id=repo_id,
)
resp = llm.invoke("Tell me a joke")
print(resp)
 ```
Additional guidelines:
- Make sure optional dependencies are imported within a function.
- Please do not add dependencies to pyproject.toml files (even optional
ones) unless they are required for unit tests.
- Most PRs should not touch more than one package.
- Changes should be backwards compatible.
- If you are adding something to community, do not re-import it in
langchain.

If no one reviews your PR within a few days, please @-mention one of
baskaryan, efriis, eyurtsev, hwchase17.

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
2024-07-12 22:10:32 +00:00
..

🦜🧑‍🤝‍🧑 LangChain Community

Downloads License: MIT

Quick Install

pip install langchain-community

What is it?

LangChain Community contains third-party integrations that implement the base interfaces defined in LangChain Core, making them ready-to-use in any LangChain application.

For full documentation see the API reference.

Diagram outlining the hierarchical organization of the LangChain framework, displaying the interconnected parts across multiple layers.

📕 Releases & Versioning

langchain-community is currently on version 0.0.x

All changes will be accompanied by a patch version increase.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.

For detailed information on how to contribute, see the Contributing Guide.