New version breaks base_url (edge case)

[jami3f]

Hi,
I am using a self hosted NIM behind a reverse proxy, meaning to access the LLM, I use the following base URL: http://{host}/llm/v1.

When using ChatNVIDIA, using this base URL worked until version 0.2.1, where the URL is now expected to have no trailing path.
The error is as follows:
Base URL path is not recognized. Expected format is: http://host:port (type=value_error).
In my case, it is not possible to use this format.

For clarity's sake, my code looks like the following:

from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = ChatNVIDIA(
            base_url=f"http://{IP}/llm/v1",
            model=model,
        )

pip freeze
...
langchain-nvidia-ai-endpoints==0.2.1
...

The error originates from _common.py, line 147, after the validation fails.

[raspawar]

Hi @jami3f,

Thanks for reaching out, we on it and will update you as soon as it's fixed.

[renambot]

I have the same problem.

[raspawar]

Hi,

The issue is fixed in yesterdays package release: 0.2.2, let me know if issue persists.

[renambot]

Nope.

If I do:

llm = ChatNVIDIA(
    base_url="https://myserver.com/llama/v1",
    model="meta/llama-3.1-8b-instruct",
)

I get some error that indicates it's using https://myserver.com/v1/chat/completions

...
'raw': <urllib3.response.HTTPResponse object at 0x1727f9900>, 'url': 'https://myserver.com/v1/chat/completions', 
'encoding': 'ISO-8859-1', 'history': [], 'reason': 'Not Found', 'cookies': <RequestsCookieJar[]>, 'elapsed':
 datetime.timedelta(microseconds=17269), 'request': <PreparedRequest [POST]>, 'connection':
 <requests.adapters.HTTPAdapter object at 0x172746300>}
...

[jami3f]

I believe the additional necessary portions of the path get removed. In @renambot's case /llama would need to be reinserted before /v1 in the URL that is used to query the NIM.

[renambot]

Yes, I would recommend either:

• do not touch the URL provided
• or keep the path in the URL (it is removed right now) and tell people not to add 'v1' in the base_url

LINE 142 in _common.py

            # Keep the path and add it to '/v1'
            v = urlunparse(
                (parsed.scheme, parsed.netloc, parsed.path + "/v1", None, None, None)
            )

[renambot]

Still in v0.3.1