github/langchain
1
0
Fork 0
mirror of https://github.com/hwchase17/langchain.git synced 2025-06-24 15:43:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

docs: clarify hub.pull behavior with non-US LangSmith endpoints (#31270)

Browse Source 
**Description**:

This PR updates the documentation to address a potential issue when
using `hub.pull(...)` with non-US LangSmith endpoints (e.g.,
`https://eu.api.smith.langchain.com`).

By default, the `hub.pull` function assumes the non US-based API URL.
When the `LANGSMITH_ENDPOINT` environment variable is set to a non-US
region, this can lead to `LangSmithNotFoundError 404 not found` errors
when pulling public assets from the LangChain Hub.

Issue: #31191

---------

Co-authored-by: Chester Curme <chester.curme@gmail.com>
This commit is contained in:
Himanshu Sharma 2025-05-19 18:06:37 -05:00 committed by GitHub
parent 0c6137ec2b
commit ff12555bdc
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
docs/docs/tutorials/rag.ipynb
View File

@ -234,6 +234,8 @@
"_ = vector_store.add_documents(documents=all_splits)\n", "_ = vector_store.add_documents(documents=all_splits)\n",
"\n", "\n",
"# Define prompt for question-answering\n", "# Define prompt for question-answering\n",
"# N.B. for non-US LangSmith endpoints, you may need to specify\n",
"# api_url=\"https://api.smith.langchain.com\" in hub.pull.\n",
"prompt = hub.pull(\"rlm/rag-prompt\")\n", "prompt = hub.pull(\"rlm/rag-prompt\")\n",
"\n", "\n",
"\n", "\n",
@ -535,7 +537,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 10, "execution_count": null,
"id": "46f378c5-858c-488f-8aef-8b59a6280791", "id": "46f378c5-858c-488f-8aef-8b59a6280791",
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
@ -553,6 +555,8 @@
"source": [ "source": [
"from langchain import hub\n", "from langchain import hub\n",
"\n", "\n",
"# N.B. for non-US LangSmith endpoints, you may need to specify\n",
"# api_url=\"https://api.smith.langchain.com\" in hub.pull.\n",
"prompt = hub.pull(\"rlm/rag-prompt\")\n", "prompt = hub.pull(\"rlm/rag-prompt\")\n",
"\n", "\n",
"example_messages = prompt.invoke(\n", "example_messages = prompt.invoke(\n",