Archives
/
langchain
mirror of https://github.com/hwchase17/langchain
2
0
Fork 1
Code Issues Packages Projects Releases Wiki Activity

docs: Update elasticsearch README (#18497)

Browse Source 
Update Elasticsearch README with information on how to start a
deployment.

Also make some cosmetic changes to the [Elasticsearch
docs](https://python.langchain.com/docs/integrations/vectorstores/elasticsearch).

Follow up on https://github.com/langchain-ai/langchain/pull/17467
pull/18663/head
Max Jakob 4 months ago committed by GitHub
parent 6a08134661
commit 81e9ab6e3a
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
4 changed files with 137 additions and 65 deletions
Show Stats Download Patch File Download Diff File

98
docs/docs/integrations/vectorstores/elasticsearch.ipynb
Unescape Escape View File

@ -21,7 +21,7 @@
"metadata": {},
"outputs": [],
"source": [
"%pip install --upgrade --quiet langchain-elasticsearch langchain-openai tiktoken langchain"
"%pip install --upgrade --quiet langchain-elasticsearch langchain-openai tiktoken langchain"
]
},
{
@ -57,61 +57,61 @@
"Example: Run a single-node Elasticsearch instance with security disabled. This is not recommended for production use.\n",
"\n",
"```bash\n",
" docker run -p 9200:9200 -e \"discovery.type=single-node\" -e \"xpack.security.enabled=false\" -e \"xpack.security.http.ssl.enabled=false\" docker.elastic.co/elasticsearch/elasticsearch:8.9.0\n",
"docker run -p 9200:9200 -e \"discovery.type=single-node\" -e \"xpack.security.enabled=false\" -e \"xpack.security.http.ssl.enabled=false\" docker.elastic.co/elasticsearch/elasticsearch:8.12.1\n",
"```\n",
"\n",
"Once the Elasticsearch instance is running, you can connect to it using the Elasticsearch URL and index name along with the embedding object to the constructor.\n",
"\n",
"Example:\n",
"```python\n",
" from langchain_elasticsearch import ElasticsearchStore\n",
" from langchain_openai import OpenAIEmbeddings\n",
"\n",
" embedding = OpenAIEmbeddings()\n",
" elastic_vector_search = ElasticsearchStore(\n",
" es_url=\"http://localhost:9200\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding\n",
" )\n",
"from langchain_elasticsearch import ElasticsearchStore\n",
"from langchain_openai import OpenAIEmbeddings\n",
"\n",
"embedding = OpenAIEmbeddings()\n",
"elastic_vector_search = ElasticsearchStore(\n",
" es_url=\"http://localhost:9200\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding\n",
")\n",
"```\n",
"### Authentication\n",
"For production, we recommend you run with security enabled. To connect with login credentials, you can use the parameters `es_api_key` or `es_user` and `es_password`.\n",
"\n",
"Example:\n",
"```python\n",
" from langchain_elasticsearch import ElasticsearchStore\n",
" from langchain_openai import OpenAIEmbeddings\n",
"\n",
" embedding = OpenAIEmbeddings()\n",
" elastic_vector_search = ElasticsearchStore(\n",
" es_url=\"http://localhost:9200\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding,\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
" )\n",
"from langchain_elasticsearch import ElasticsearchStore\n",
"from langchain_openai import OpenAIEmbeddings\n",
"\n",
"embedding = OpenAIEmbeddings()\n",
"elastic_vector_search = ElasticsearchStore(\n",
" es_url=\"http://localhost:9200\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding,\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
")\n",
"```\n",
"\n",
"You can also use an `Elasticsearch` client object that gives you more flexibility, for example to configure the maximum number of retries.\n",
"\n",
"Example:\n",
"```python\n",
" import elasticsearch\n",
" from langchain_elasticsearch import ElasticsearchStore\n",
"\n",
" es_client= elasticsearch.Elasticsearch(\n",
" hosts=[\"http://localhost:9200\"],\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
" max_retries=10,\n",
" )\n",
"\n",
" embedding = OpenAIEmbeddings()\n",
" elastic_vector_search = ElasticsearchStore(\n",
" index_name=\"test_index\",\n",
" es_connection=es_client,\n",
" embedding=embedding,\n",
" )\n",
"import elasticsearch\n",
"from langchain_elasticsearch import ElasticsearchStore\n",
"\n",
"es_client= elasticsearch.Elasticsearch(\n",
" hosts=[\"http://localhost:9200\"],\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
" max_retries=10,\n",
")\n",
"\n",
"embedding = OpenAIEmbeddings()\n",
"elastic_vector_search = ElasticsearchStore(\n",
" index_name=\"test_index\",\n",
" es_connection=es_client,\n",
" embedding=embedding,\n",
")\n",
"```\n",
"\n",
"#### How to obtain a password for the default \"elastic\" user?\n",
@ -137,17 +137,17 @@
"\n",
"Example:\n",
"```python\n",
" from langchain_elasticsearch import ElasticsearchStore\n",
" from langchain_openai import OpenAIEmbeddings\n",
"\n",
" embedding = OpenAIEmbeddings()\n",
" elastic_vector_search = ElasticsearchStore(\n",
" es_cloud_id=\"<cloud_id>\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding,\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
" )\n",
"from langchain_elasticsearch import ElasticsearchStore\n",
"from langchain_openai import OpenAIEmbeddings\n",
"\n",
"embedding = OpenAIEmbeddings()\n",
"elastic_vector_search = ElasticsearchStore(\n",
" es_cloud_id=\"<cloud_id>\",\n",
" index_name=\"test_index\",\n",
" embedding=embedding,\n",
" es_user=\"elastic\",\n",
" es_password=\"changeme\"\n",
")\n",
"```"
]
},

58
libs/partners/elasticsearch/README.md
Unescape Escape View File

@ -8,16 +8,38 @@ This package contains the LangChain integration with Elasticsearch.
pip install -U langchain-elasticsearch
```
TODO document how to get id and key
## Elasticsearch setup
### Elastic Cloud
You need a running Elasticsearch deployment. The easiest way to start one is through [Elastic Cloud](https://cloud.elastic.co/).
You can sign up for a [free trial](https://www.elastic.co/cloud/cloud-trial-overview).
1. [Create a deployment](https://www.elastic.co/guide/en/cloud/current/ec-create-deployment.html)
2. Get your Cloud ID:
1. In the [Elastic Cloud console](https://cloud.elastic.co), click "Manage" next to your deployment
2. Copy the Cloud ID and paste it into the `es_cloud_id` parameter below
3. Create an API key:
1. In the [Elastic Cloud console](https://cloud.elastic.co), click "Open" next to your deployment
2. In the left-hand side menu, go to "Stack Management", then to "API Keys"
3. Click "Create API key"
4. Enter a name for the API key and click "Create"
5. Copy the API key and paste it into the `es_api_key` parameter below
### Elastic Cloud
Alternatively, you can run Elasticsearch via Docker as described in the [docs](https://python.langchain.com/docs/integrations/vectorstores/elasticsearch).
## Usage
The `ElasticsearchStore` class exposes the connection to the Pinecone vector store.
### ElasticsearchStore
The `ElasticsearchStore` class exposes Elasticsearch as a vector store.
```python
from langchain_elasticsearch import ElasticsearchStore
embeddings = ... # use a LangChain Embeddings class
embeddings = ... # use a LangChain Embeddings class or ElasticsearchEmbeddings
vectorstore = ElasticsearchStore(
es_cloud_id="your-cloud-id",
@ -27,3 +49,33 @@ vectorstore = ElasticsearchStore(
)
```
### ElasticsearchEmbeddings
The `ElasticsearchEmbeddings` class provides an interface to generate embeddings using a model
deployed in an Elasticsearch cluster.
```python
from langchain_elasticsearch import ElasticsearchEmbeddings
embeddings = ElasticsearchEmbeddings.from_credentials(
model_id="your-model-id",
input_field="your-input-field",
es_cloud_id="your-cloud-id",
es_api_key="your-api-key",
)
```
### ElasticsearchChatMessageHistory
The `ElasticsearchChatMessageHistory` class stores chat histories in Elasticsearch.
```python
from langchain_elasticsearch import ElasticsearchChatMessageHistory
chat_history = ElasticsearchChatMessageHistory(
index="your-index-name",
session_id="your-session-id",
es_cloud_id="your-cloud-id",
es_api_key="your-api-key",
)
```

45
libs/partners/elasticsearch/poetry.lock generated
Unescape Escape View File

@ -599,7 +599,7 @@ files = [
[[package]]
name = "langchain"
version = "0.1.9"
version = "0.1.10"
description = "Building applications with LLMs through composability"
optional = false
python-versions = ">=3.8.1,<4.0"
@ -611,9 +611,10 @@ aiohttp = "^3.8.3"
async-timeout = {version = "^4.0.0", markers = "python_version < \"3.11\""}
dataclasses-json = ">= 0.5.7, < 0.7"
jsonpatch = "^1.33"
langchain-community = ">=0.0.21,<0.1"
langchain-core = ">=0.1.26,<0.2"
langsmith = "^0.1.0"
langchain-community = ">=0.0.25,<0.1"
langchain-core = ">=0.1.28,<0.2"
langchain-text-splitters = ">=0.0.1,<0.1"
langsmith = "^0.1.14"
numpy = "^1"
pydantic = ">=1,<3"
PyYAML = ">=5.3"
@ -623,7 +624,7 @@ tenacity = "^8.1.0"
[package.extras]
all = []
azure = ["azure-ai-formrecognizer (>=3.2.1,<4.0.0)", "azure-ai-textanalytics (>=5.3.0,<6.0.0)", "azure-ai-vision (>=0.11.1b1,<0.12.0)", "azure-cognitiveservices-speech (>=1.28.0,<2.0.0)", "azure-core (>=1.26.4,<2.0.0)", "azure-cosmos (>=4.4.0b1,<5.0.0)", "azure-identity (>=1.12.0,<2.0.0)", "azure-search-documents (==11.4.0b8)", "openai (<2)"]
azure = ["azure-ai-formrecognizer (>=3.2.1,<4.0.0)", "azure-ai-textanalytics (>=5.3.0,<6.0.0)", "azure-cognitiveservices-speech (>=1.28.0,<2.0.0)", "azure-core (>=1.26.4,<2.0.0)", "azure-cosmos (>=4.4.0b1,<5.0.0)", "azure-identity (>=1.12.0,<2.0.0)", "azure-search-documents (==11.4.0b8)", "openai (<2)"]
clarifai = ["clarifai (>=9.1.0)"]
cli = ["typer (>=0.9.0,<0.10.0)"]
cohere = ["cohere (>=4,<5)"]
@ -642,7 +643,7 @@ url = "../../langchain"
[[package]]
name = "langchain-community"
version = "0.0.24"
version = "0.0.25"
description = "Community contributed LangChain integrations."
optional = false
python-versions = ">=3.8.1,<4.0"
@ -652,7 +653,7 @@ develop = true
[package.dependencies]
aiohttp = "^3.8.3"
dataclasses-json = ">= 0.5.7, < 0.7"
langchain-core = ">=0.1.26,<0.2"
langchain-core = "^0.1.28"
langsmith = "^0.1.0"
numpy = "^1"
PyYAML = ">=5.3"
@ -670,7 +671,7 @@ url = "../../community"
[[package]]
name = "langchain-core"
version = "0.1.26"
version = "0.1.28"
description = "Building applications with LLMs through composability"
optional = false
python-versions = ">=3.8.1,<4.0"
@ -694,15 +695,34 @@ extended-testing = ["jinja2 (>=3,<4)"]
type = "directory"
url = "../../core"
[[package]]
name = "langchain-text-splitters"
version = "0.0.1"
description = "LangChain text splitting utilities"
optional = false
python-versions = ">=3.8.1,<4.0"
files = []
develop = true
[package.dependencies]
langchain-core = "^0.1.28"
[package.extras]
extended-testing = ["lxml (>=5.1.0,<6.0.0)"]
[package.source]
type = "directory"
url = "../../text-splitters"
[[package]]
name = "langsmith"
version = "0.1.9"
version = "0.1.14"
description = "Client library to connect to the LangSmith LLM Tracing and Evaluation Platform."
optional = false
python-versions = ">=3.8.1,<4.0"
files = [
{file = "langsmith-0.1.9-py3-none-any.whl", hash = "sha256:f821b3cb07a87eac5cb2181ff0b61051811e4eef09ae4b46e700981f7ae5dfb9"},
{file = "langsmith-0.1.9.tar.gz", hash = "sha256:9bd3e80607722c3d2db84cf3440005491a859b80b5e499bc988032d5c2da91f0"},
{file = "langsmith-0.1.14-py3-none-any.whl", hash = "sha256:ecb243057d2a43c2da0524fe395585bc3421bb5d24f1cdd53eb06fbe63e43a69"},
{file = "langsmith-0.1.14.tar.gz", hash = "sha256:b95f267d25681f4c9862bb68236fba8a57a60ec7921ecfdaa125936807e51bde"},
]
[package.dependencies]
@ -1232,7 +1252,6 @@ files = [
{file = "PyYAML-6.0.1-cp311-cp311-win_amd64.whl", hash = "sha256:bf07ee2fef7014951eeb99f56f39c9bb4af143d8aa3c21b1677805985307da34"},
{file = "PyYAML-6.0.1-cp312-cp312-macosx_10_9_x86_64.whl", hash = "sha256:855fb52b0dc35af121542a76b9a84f8d1cd886ea97c84703eaa6d88e37a2ad28"},
{file = "PyYAML-6.0.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:40df9b996c2b73138957fe23a16a4f0ba614f4c0efce1e9406a184b6d07fa3a9"},
{file = "PyYAML-6.0.1-cp312-cp312-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a08c6f0fe150303c1c6b71ebcd7213c2858041a7e01975da3a99aed1e7a378ef"},
{file = "PyYAML-6.0.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:6c22bec3fbe2524cde73d7ada88f6566758a8f7227bfbf93a408a9d86bcc12a0"},
{file = "PyYAML-6.0.1-cp312-cp312-musllinux_1_1_x86_64.whl", hash = "sha256:8d4e9c88387b0f5c7d5f281e55304de64cf7f9c0021a3525bd3b1c542da3b0e4"},
{file = "PyYAML-6.0.1-cp312-cp312-win32.whl", hash = "sha256:d483d2cdf104e7c9fa60c544d92981f12ad66a457afae824d146093b8c294c54"},
@ -1652,4 +1671,4 @@ multidict = ">=4.0"
[metadata]
lock-version = "2.0"
python-versions = ">=3.8.1,<4.0"
content-hash = "2d6d655d583bada95d7c62a5ef37080eff99819e7ca02c9c75f73de3e59e0aff"
content-hash = "7521bf553cf55c1883bcf93e79103bc6136ccba901bb8277af24f1539d8c8bce"

1
libs/partners/elasticsearch/pyproject.toml
Unescape Escape View File

@ -29,6 +29,7 @@ pytest-asyncio = "^0.21.1"
langchain = { path = "../../langchain", develop = true }
langchain-community = { path = "../../community", develop = true }
langchain-core = { path = "../../core", develop = true }
langchain-text-splitters = {path = "../../text-splitters", develop = true}
[tool.poetry.group.codespell]
optional = true

Write Preview
Loading…
Cancel
Save