@langchain/aws
v0.1.2
Published
LangChain AWS integration
Downloads
200,261
Maintainers
Keywords
Readme
@langchain/aws
This package contains the LangChain.js integrations for AWS through their SDK.
Installation
npm install @langchain/aws
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/aws": "^0.0.1",
"@langchain/core": "^0.3.0"
},
"resolutions": {
"@langchain/core": "^0.3.0"
},
"overrides": {
"@langchain/core": "^0.3.0"
},
"pnpm": {
"overrides": {
"@langchain/core": "^0.3.0"
}
}
}
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.
Chat Models
This package contains the ChatBedrockConverse
class, which is the recommended way to interface with the AWS Bedrock Converse series of models.
To use, install the requirements, and configure your environment.
export BEDROCK_AWS_REGION=
export BEDROCK_AWS_SECRET_ACCESS_KEY=
export BEDROCK_AWS_ACCESS_KEY_ID=
Then initialize
import { ChatBedrockConverse } from "@langchain/aws";
const model = new ChatBedrockConverse({
region: process.env.BEDROCK_AWS_REGION ?? "us-east-1",
credentials: {
secretAccessKey: process.env.BEDROCK_AWS_SECRET_ACCESS_KEY,
accessKeyId: process.env.BEDROCK_AWS_ACCESS_KEY_ID,
},
});
const response = await model.invoke(new HumanMessage("Hello world!"));
Streaming
import { ChatBedrockConverse } from "@langchain/aws";
const model = new ChatBedrockConverse({
region: process.env.BEDROCK_AWS_REGION ?? "us-east-1",
credentials: {
secretAccessKey: process.env.BEDROCK_AWS_SECRET_ACCESS_KEY,
accessKeyId: process.env.BEDROCK_AWS_ACCESS_KEY_ID,
},
});
const response = await model.stream(new HumanMessage("Hello world!"));
Development
To develop the AWS package, you'll need to follow these instructions:
Install dependencies
yarn install
Build the package
yarn build
Or from the repo root:
yarn build --filter=@langchain/aws
Run tests
Test files should live within a tests/
file in the src/
folder. Unit tests should end in .test.ts
and integration tests should
end in .int.test.ts
:
$ yarn test
$ yarn test:int
Lint & Format
Run the linter & formatter to ensure your code is up to standard:
yarn lint && yarn format
Adding new entrypoints
If you add a new file to be exported, either import & re-export from src/index.ts
, or add it to the entrypoints
field in the config
variable located inside langchain.config.js
and run yarn build
to generate the new entrypoint.
Publishing
After running yarn build
, publish a new version with:
$ npm publish