AWS Bedrock NodeJS Code Samples

This repository is intended to provide sample code on how to execute/call AWS Bedrock with either the AWS SDK v3 or using langchain.

Usage

The samples are mostly self-contained and can be executed independently, readers should ensure to:

1. Have AWS Bedrock & the Claude Instant v1 model enabled on their accounts
2. Have the AWS credentials configured on their terminals
3. Have Node JS installed
4. Execute npm i to install the dependencies
5. Replace the required variables with the correct information
6. Run the desired sample with node <sample-file-name>.js

Note

Langchain examples that contain the word memory in the file name also require a DynamoDB table to be created. review the Official Documentation for further details on how this is expected to work.

The Bedrock Agent Example also requires the user to have configured a AWS Bedrock agent on their account beforehand.

Samples

Following is a list of the currently available provided samples.

AWS SDK v3

• Basic Example: Sample of executing a single synchronous call to AWS Bedrock.
• Streamed Response: Improvement of the first example to allow for receiving streamed responses from Bedrock.
• Bedrock Agent: Sample code on how to trigger the execution of an existing Bedrock Agent.

Langchain

• Basic Example: Sample of executing a single synchronous call to AWS Bedrock using the Langchain framework.
• Streamed Response: Example code to get a streamed response from Bedrock when executing it with Langchain.
• Conversation Chain + Memory: Sample of how to configure Langchain to use a Conversation Chain and store the Conversation History on a DynamoDB table
• Conversation Chain + Memory + Streamed Response: Improved the previous sample to also return the Bedrock response as a stream.