@langchain/azure-cosmosdb

This package contains the Azure CosmosDB vector store integrations.

Learn more about how to use this package in the LangChain documentation:

• Azure CosmosDB for NoSQL
• Azure CosmosDB for MongoDB vCore

Installation

npm install @langchain/azure-cosmosdb @langchain/core
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This package, along with the main LangChain package, depends on @langchain/core. If you are using this package with other LangChain packages, you should make sure that all of the packages depend on the same instance of @langchain/core. You can do so by adding appropriate fields to your project's package.json like this:

{
  "name": "your-project",
  "version": "0.0.0",
  "dependencies": {
    "@langchain/core": "^0.3.0",
    "@langchain/azure-cosmosdb": "^0.2.5"
  },
  "resolutions": {
    "@langchain/core": "0.3.0"
  },
  "overrides": {
    "@langchain/core": "0.3.0"
  },
  "pnpm": {
    "overrides": {
      "@langchain/core": "0.3.0"
    }
  }
}
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The field you need depends on the package manager you're using, but we recommend adding a field for the common yarn, npm, and pnpm to maximize compatibility.

Usage

import { AzureCosmosDBNoSQLVectorStore } from "@langchain/azure-cosmosdb";

const store = await AzureCosmosDBNoSQLVectorStore.fromDocuments(
  ["Hello, World!"],
  new OpenAIEmbeddings(),
  {
    databaseName: "langchain",
    containerName: "documents",
  }
);

const resultDocuments = await store.similaritySearch("hello");
console.log(resultDocuments[0].pageContent);
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